CINXE.COM

<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref--excluded vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-not-available" lang="zh" dir="ltr"> <head> <meta charset="UTF-8"> <title>File:Convolution of spiky function with box2.gif - 维基百科，自由的百科全书</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref--excluded vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-not-available";var cookie=document.cookie.match(/(?:^|; )zhwikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""], "wgDefaultDateFormat":"zh","wgMonthNames":["","1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月"],"wgRequestId":"8b88ddba-a5f3-46de-83fb-afff503ef5a9","wgCanonicalNamespace":"File","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":6,"wgPageName":"File:Convolution_of_spiky_function_with_box2.gif","wgTitle":"Convolution of spiky function with box2.gif","wgCurRevisionId":0,"wgRevisionId":0,"wgArticleId":0,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["图像尺寸大小带有额外px字符的页面"],"wgPageViewLanguage":"zh","wgPageContentLanguage":"zh","wgPageContentModel":"wikitext","wgRelevantPageName":"File:Convolution_of_spiky_function_with_box2.gif","wgRelevantArticleId":0,"wgUserVariant":"zh","wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true,"wgRestrictionCreate":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":true,"wgMediaViewerOnClick": true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"zh","pageLanguageDir":"ltr","pageVariantFallbacks":["zh-hans","zh-hant","zh-cn","zh-tw","zh-hk","zh-sg","zh-mo","zh-my"]},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":true,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":0,"wgRelatedArticlesCompat":[],"wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":true,"wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false};RLSTATE={"ext.gadget.large-font":"ready", "ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","mediawiki.interface.helpers.styles":"ready","mediawiki.action.view.filepage":"ready","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","filepage":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["mediawiki.action.view.metadata","site","mediawiki.page.ready","skins.vector.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.gadget.edit0","ext.gadget.WikiMiniAtlas","ext.gadget.UnihanTooltips","ext.gadget.Difflink","ext.gadget.pseudonamespace-UI","ext.gadget.SpecialWikitext","ext.gadget.switcher","ext.gadget.VariantAlly","ext.gadget.AdvancedSiteNotices","ext.gadget.hideConversionTab","ext.gadget.internalLinkHelper-altcolor","ext.gadget.noteTA", "ext.gadget.NavFrame","ext.gadget.collapsibleTables","ext.gadget.scrollUpButton","ext.urlShortener.toolbar","ext.centralauth.centralautologin","mmv.bootstrap","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.interface","ext.cx.eventlogging.campaigns","ext.checkUser.clientHints"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=zh&modules=ext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cfilepage%7Cmediawiki.action.view.filepage%7Cmediawiki.interface.helpers.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles&only=styles&skin=vector-2022"> <script async="" src="/w/load.php?lang=zh&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <link rel="stylesheet" href="https://commons.wikimedia.org/w/index.php?title=MediaWiki:Filepage.css&action=raw&ctype=text/css"> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=zh&modules=ext.gadget.large-font&only=styles&skin=vector-2022"> <link rel="stylesheet" href="/w/load.php?lang=zh&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.4"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/b/b9/Convolution_of_spiky_function_with_box2.gif"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="346"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/b/b9/Convolution_of_spiky_function_with_box2.gif"> <meta property="og:image:width" content="800"> <meta property="og:image:height" content="231"> <meta property="og:image:width" content="640"> <meta property="og:image:height" content="185"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="File:Convolution of spiky function with box2.gif - 维基百科，自由的百科全书"> <meta property="og:type" content="website"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//zh.m.wikipedia.org/wiki/File:Convolution_of_spiky_function_with_box2.gif"> <link rel="alternate" type="application/x-wiki" title="编辑本页" href="/w/index.php?title=File:Convolution_of_spiky_function_with_box2.gif&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikipedia (zh)"> <link rel="EditURI" type="application/rsd+xml" href="//zh.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://commons.wikimedia.org/wiki/File:Convolution_of_spiky_function_with_box2.gif"> <link rel="alternate" hreflang="zh" href="https://zh.wikipedia.org/wiki/File:Convolution_of_spiky_function_with_box2.gif"> <link rel="alternate" hreflang="zh-Hans" href="https://zh.wikipedia.org/zh-hans/File:Convolution_of_spiky_function_with_box2.gif"> <link rel="alternate" hreflang="zh-Hans-CN" href="https://zh.wikipedia.org/zh-cn/File:Convolution_of_spiky_function_with_box2.gif"> <link rel="alternate" hreflang="zh-Hans-MY" href="https://zh.wikipedia.org/zh-my/File:Convolution_of_spiky_function_with_box2.gif"> <link rel="alternate" hreflang="zh-Hans-SG" href="https://zh.wikipedia.org/zh-sg/File:Convolution_of_spiky_function_with_box2.gif"> <link rel="alternate" hreflang="zh-Hant" href="https://zh.wikipedia.org/zh-hant/File:Convolution_of_spiky_function_with_box2.gif"> <link rel="alternate" hreflang="zh-Hant-HK" href="https://zh.wikipedia.org/zh-hk/File:Convolution_of_spiky_function_with_box2.gif"> <link rel="alternate" hreflang="zh-Hant-MO" href="https://zh.wikipedia.org/zh-mo/File:Convolution_of_spiky_function_with_box2.gif"> <link rel="alternate" hreflang="zh-Hant-TW" href="https://zh.wikipedia.org/zh-tw/File:Convolution_of_spiky_function_with_box2.gif"> <link rel="alternate" hreflang="x-default" href="https://zh.wikipedia.org/wiki/File:Convolution_of_spiky_function_with_box2.gif"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.zh"> <link rel="alternate" type="application/atom+xml" title="Wikipedia的Atom feed" href="/w/index.php?title=Special:%E6%9C%80%E8%BF%91%E6%9B%B4%E6%94%B9&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-6 ns-subject mw-editable page-File_Convolution_of_spiky_function_with_box2_gif rootpage-File_Convolution_of_spiky_function_with_box2_gif skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">跳转到内容</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="站点"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="主菜单" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">主菜单</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">主菜单</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">移至侧栏</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">隐藏</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> 导航 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Wikipedia:%E9%A6%96%E9%A1%B5" title="访问首页[z]" accesskey="z"><span>首页</span></a></li><li id="n-indexpage" class="mw-list-item"><a href="/wiki/Wikipedia:%E5%88%86%E7%B1%BB%E7%B4%A2%E5%BC%95" title="以分类索引搜寻中文维基百科"><span>分类索引</span></a></li><li id="n-Featured_content" class="mw-list-item"><a href="/wiki/Portal:%E7%89%B9%E8%89%B2%E5%85%A7%E5%AE%B9" title="查看中文维基百科的特色内容"><span>特色内容</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Portal:%E6%96%B0%E8%81%9E%E5%8B%95%E6%85%8B" title="提供当前新闻事件的背景资料"><span>新闻动态</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Special:%E6%9C%80%E8%BF%91%E6%9B%B4%E6%94%B9" title="列出维基百科中的最近修改[r]" accesskey="r"><span>最近更改</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Special:%E9%9A%8F%E6%9C%BA%E9%A1%B5%E9%9D%A2" title="随机载入一个页面[x]" accesskey="x"><span>随机条目</span></a></li> </ul> </div> </div> <div id="p-help" class="vector-menu mw-portlet mw-portlet-help" > <div class="vector-menu-heading"> 帮助 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-help" class="mw-list-item"><a href="/wiki/Help:%E7%9B%AE%E5%BD%95" title="寻求帮助"><span>帮助</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Wikipedia:%E7%A4%BE%E7%BE%A4%E9%A6%96%E9%A1%B5" title="关于本计划、你可以做什么、应该如何做"><span>维基社群</span></a></li><li id="n-policy" class="mw-list-item"><a href="/wiki/Wikipedia:%E6%96%B9%E9%87%9D%E8%88%87%E6%8C%87%E5%BC%95" title="查看维基百科的方针和指引"><span>方针与指引</span></a></li><li id="n-villagepump" class="mw-list-item"><a href="/wiki/Wikipedia:%E4%BA%92%E5%8A%A9%E5%AE%A2%E6%A0%88" title="参与维基百科社群的讨论"><span>互助客栈</span></a></li><li id="n-Information_desk" class="mw-list-item"><a href="/wiki/Wikipedia:%E7%9F%A5%E8%AF%86%E9%97%AE%E7%AD%94" title="解答任何与维基百科无关的问题的地方"><span>知识问答</span></a></li><li id="n-conversion" class="mw-list-item"><a href="/wiki/Wikipedia:%E5%AD%97%E8%AF%8D%E8%BD%AC%E6%8D%A2" title="提出字词转换请求"><span>字词转换</span></a></li><li id="n-IRC" class="mw-list-item"><a href="/wiki/Wikipedia:IRC%E8%81%8A%E5%A4%A9%E9%A2%91%E9%81%93"><span>IRC即时聊天</span></a></li><li id="n-contact" class="mw-list-item"><a href="/wiki/Wikipedia:%E8%81%94%E7%BB%9C%E6%88%91%E4%BB%AC" title="如何联络维基百科"><span>联络我们</span></a></li><li id="n-about" class="mw-list-item"><a href="/wiki/Wikipedia:%E5%85%B3%E4%BA%8E" title="查看维基百科的简介"><span>关于维基百科</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Wikipedia:%E9%A6%96%E9%A1%B5" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="维基百科" src="/static/images/mobile/copyright/wikipedia-wordmark-zh.svg" style="width: 6.5625em; height: 1.375em;"> <img class="mw-logo-tagline" alt="自由的百科全书" src="/static/images/mobile/copyright/wikipedia-tagline-zh.svg" width="103" height="14" style="width: 6.4375em; height: 0.875em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Special:%E6%90%9C%E7%B4%A2" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="搜索维基百科[f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>搜索</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="搜索维基百科" aria-label="搜索维基百科" autocapitalize="sentences" title="搜索维基百科[f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Special:搜索"> </div> <button class="cdx-button cdx-search-input__end-button">搜索</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="个人工具"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="外观"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="更改页面字体大小、宽度和颜色的外观" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="外观" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">外观</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="https://donate.wikimedia.org/?utm_source=donate&utm_medium=sidebar&utm_campaign=spontaneous&uselang=zh-hans" class=""><span>资助维基百科</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:%E5%88%9B%E5%BB%BA%E8%B4%A6%E6%88%B7&returnto=File%3AConvolution+of+spiky+function+with+box2.gif" title="我们推荐您创建账号并登录，但这不是强制性的" class=""><span>创建账号</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:%E7%94%A8%E6%88%B7%E7%99%BB%E5%BD%95&returnto=File%3AConvolution+of+spiky+function+with+box2.gif" title="建议你登录，尽管并非必须。[o]" accesskey="o" class=""><span>登录</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="更多选项" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="个人工具" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">个人工具</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="用户菜单" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="https://donate.wikimedia.org/?utm_source=donate&utm_medium=sidebar&utm_campaign=spontaneous&uselang=zh-hans"><span>资助维基百科</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:%E5%88%9B%E5%BB%BA%E8%B4%A6%E6%88%B7&returnto=File%3AConvolution+of+spiky+function+with+box2.gif" title="我们推荐您创建账号并登录，但这不是强制性的"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>创建账号</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:%E7%94%A8%E6%88%B7%E7%99%BB%E5%BD%95&returnto=File%3AConvolution+of+spiky+function+with+box2.gif" title="建议你登录，尽管并非必须。[o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>登录</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> 未登录编辑者的页面 <a href="/wiki/Help:%E6%96%B0%E6%89%8B%E5%85%A5%E9%97%A8" aria-label="了解有关编辑的更多信息"><span>了解详情</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:%E6%88%91%E7%9A%84%E8%B4%A1%E7%8C%AE" title="来自此IP地址的编辑列表[y]" accesskey="y"><span>贡献</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:%E6%88%91%E7%9A%84%E8%AE%A8%E8%AE%BA%E9%A1%B5" title="对于来自此IP地址编辑的讨论[n]" accesskey="n"><span>讨论</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="站点"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <h1 id="firstHeading" class="firstHeading mw-first-heading">File:Convolution of spiky function with box2.gif</h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang mw-portlet-lang-icon-only" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector-empty" aria-label="这篇条目只存在于此语言中。添加其他语言的条目" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only mw-portlet-lang-heading-empty" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language mw-ui-icon-wikimedia-language"></span> <span class="vector-dropdown-label-text">添加语言</span> </label> <div class="vector-dropdown-content"> <div class="mw-portlet-empty-language-selector-body"> 页面内容不支持其他语言。 </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="命名空间"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-image" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/File:Convolution_of_spiky_function_with_box2.gif" title="查看图像页面[c]" accesskey="c"><span>文件</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=File_talk:Convolution_of_spiky_function_with_box2.gif&action=edit&redlink=1" rel="discussion" class="new" title="关于此页面的讨论（页面不存在）[t]" accesskey="t"><span>讨论</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown " > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="更改语言变体" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">不转换</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-varlang-0" class="selected ca-variants-zh mw-list-item"><a href="/zh/File:Convolution_of_spiky_function_with_box2.gif" lang="zh" hreflang="zh"><span>不转换</span></a></li><li id="ca-varlang-1" class="ca-variants-zh-Hans mw-list-item"><a href="/zh-hans/File:Convolution_of_spiky_function_with_box2.gif" lang="zh-Hans" hreflang="zh-Hans"><span>简体</span></a></li><li id="ca-varlang-2" class="ca-variants-zh-Hant mw-list-item"><a href="/zh-hant/File:Convolution_of_spiky_function_with_box2.gif" lang="zh-Hant" hreflang="zh-Hant"><span>繁體</span></a></li><li id="ca-varlang-3" class="ca-variants-zh-Hans-CN mw-list-item"><a href="/zh-cn/File:Convolution_of_spiky_function_with_box2.gif" lang="zh-Hans-CN" hreflang="zh-Hans-CN"><span>大陆简体</span></a></li><li id="ca-varlang-4" class="ca-variants-zh-Hant-HK mw-list-item"><a href="/zh-hk/File:Convolution_of_spiky_function_with_box2.gif" lang="zh-Hant-HK" hreflang="zh-Hant-HK"><span>香港繁體</span></a></li><li id="ca-varlang-5" class="ca-variants-zh-Hant-MO mw-list-item"><a href="/zh-mo/File:Convolution_of_spiky_function_with_box2.gif" lang="zh-Hant-MO" hreflang="zh-Hant-MO"><span>澳門繁體</span></a></li><li id="ca-varlang-6" class="ca-variants-zh-Hans-MY mw-list-item"><a href="/zh-my/File:Convolution_of_spiky_function_with_box2.gif" lang="zh-Hans-MY" hreflang="zh-Hans-MY"><span>大马简体</span></a></li><li id="ca-varlang-7" class="ca-variants-zh-Hans-SG mw-list-item"><a href="/zh-sg/File:Convolution_of_spiky_function_with_box2.gif" lang="zh-Hans-SG" hreflang="zh-Hans-SG"><span>新加坡简体</span></a></li><li id="ca-varlang-8" class="ca-variants-zh-Hant-TW mw-list-item"><a href="/zh-tw/File:Convolution_of_spiky_function_with_box2.gif" lang="zh-Hant-TW" hreflang="zh-Hant-TW"><span>臺灣正體</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="查看"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/File:Convolution_of_spiky_function_with_box2.gif"><span>阅读</span></a></li><li id="ca-view-foreign" class="vector-tab-noicon mw-list-item"><a href="https://commons.wikimedia.org/wiki/File:Convolution_of_spiky_function_with_box2.gif"><span>在维基共享资源查看</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=File:Convolution_of_spiky_function_with_box2.gif&action=edit" title="创建本地描述页面[e]" accesskey="e"><span>添加本地描述</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="页面工具"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="工具" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">工具</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">工具</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">移至侧栏</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">隐藏</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="更多选项" > <div class="vector-menu-heading"> 操作 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/File:Convolution_of_spiky_function_with_box2.gif"><span>阅读</span></a></li><li id="ca-more-view-foreign" class="vector-more-collapsible-item mw-list-item"><a href="https://commons.wikimedia.org/wiki/File:Convolution_of_spiky_function_with_box2.gif"><span>在维基共享资源查看</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=File:Convolution_of_spiky_function_with_box2.gif&action=edit" title="创建本地描述页面[e]" accesskey="e"><span>添加本地描述</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> 常规 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:%E9%93%BE%E5%85%A5%E9%A1%B5%E9%9D%A2/File:Convolution_of_spiky_function_with_box2.gif" title="列出所有与本页相链的页面[j]" accesskey="j"><span>链入页面</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Project:%E4%B8%8A%E4%BC%A0" title="上传图像或多媒体文件[u]" accesskey="u"><span>上传文件</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:%E7%89%B9%E6%AE%8A%E9%A1%B5%E9%9D%A2" title="全部特殊页面的列表[q]" accesskey="q"><span>特殊页面</span></a></li><li id="t-print" class="mw-list-item"><a href="javascript:print();" rel="alternate" title="本页面的可打印版本[p]" accesskey="p"><span>打印页面</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=File:Convolution_of_spiky_function_with_box2.gif&action=info" title="关于此页面的更多信息"><span>页面信息</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:URL%E7%BC%A9%E7%9F%AD%E7%A8%8B%E5%BA%8F&url=https%3A%2F%2Fzh.wikipedia.org%2Fwiki%2FFile%3AConvolution_of_spiky_function_with_box2.gif"><span>获取短链接</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fzh.wikipedia.org%2Fwiki%2FFile%3AConvolution_of_spiky_function_with_box2.gif"><span>下载二维码</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects emptyPortlet" > <div class="vector-menu-heading"> 在其他项目中 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="页面工具"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="外观"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">外观</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">移至侧栏</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">隐藏</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> <div id="mw-indicator-commons-icon" class="mw-indicator"><span typeof="mw:File"><a href="https://commons.wikimedia.org/wiki/File:Convolution_of_spiky_function_with_box2.gif" title="commons:File:Convolution of spiky function with box2.gif"><img alt="這個文件來自維基共享資源" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/14px-Commons-logo.svg.png" decoding="async" width="14" height="19" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/21px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/28px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span></div> </div> <div id="siteSub" class="noprint">维基百科，自由的百科全书</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><ul id="filetoc" role="navigation"><li><a href="#file">文件</a></li> <li><a href="#filehistory">文件历史</a></li> <li><a href="#filelinks">文件用途</a></li> <li><a href="#globalusage">全域文件用途</a></li> <li><a href="#metadata">元数据</a></li></ul><div class="fullImageLink" id="file"><a href="//upload.wikimedia.org/wikipedia/commons/b/b9/Convolution_of_spiky_function_with_box2.gif"><img alt="File:Convolution of spiky function with box2.gif" src="//upload.wikimedia.org/wikipedia/commons/b/b9/Convolution_of_spiky_function_with_box2.gif" decoding="async" width="468" height="135" data-file-width="468" data-file-height="135" /></a><div class="mw-filepage-resolutioninfo"><small>此为最大尺寸。</small></div></div> <div class="mw-content-ltr fullMedia" lang="zh" dir="ltr"><p><bdi dir="ltr"><a href="//upload.wikimedia.org/wikipedia/commons/b/b9/Convolution_of_spiky_function_with_box2.gif" class="internal" title="Convolution of spiky function with box2.gif">Convolution_of_spiky_function_with_box2.gif</a></bdi> <span class="fileInfo">（468 × 135像素，文件大小：76 KB，MIME类型：<span class="mime-type">image/gif</span>、循环、301帧、15秒）</span> </p></div><div class="sharedUploadNotice"> <p> <style data-mw-deduplicate="TemplateStyles:r83418294">.mw-parser-output .fmbox{clear:both;margin:0.2em 0;width:100%;border:1px solid var(--border-color-base,#a2a9b1);background-color:var(--background-color-interactive-subtle,#f8f9fa);box-sizing:border-box;color:var(--color-base,#202122)}.mw-parser-output .fmbox-system{background-color:var(--background-color-interactive-subtle,#f8f9fa)}.mw-parser-output .fmbox-warning{border:1px solid var(--border-color-destructive--active,#bb7070);background-color:var(--background-color-error-subtle,#ffdbdb)}.mw-parser-output .fmbox-editnotice{background-color:var(--background-color-transparent,transparent)}.mw-parser-output .fmbox .mbox-text{border:none;padding:0.25em 0.9em;width:100%}.mw-parser-output .fmbox .mbox-image{border:none;padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .fmbox .mbox-imageright{border:none;padding:2px 0.9em 2px 0;text-align:center}.mw-parser-output .fmbox .mbox-invalid-type{text-align:center}</style> </p> <table id="mw-sharedupload" class="plainlinks fmbox fmbox-system" role="presentation"><tbody><tr><td class="mbox-image"><span typeof="mw:File"><span title="Wikimedia Commons Logo"><img alt="Wikimedia Commons Logo" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/50px-Commons-logo.svg.png" decoding="async" width="50" height="67" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/75px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/100px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span></td><td class="mbox-text" style="font-size: 100%; text-align: center;">本文件并非来自<a href="/wiki/%E4%B8%AD%E6%96%87%E7%BB%B4%E5%9F%BA%E7%99%BE%E7%A7%91" title="中文维基百科">中文维基百科</a>，而是来自<a href="https://commons.wikimedia.org/wiki/%E9%A6%96%E9%A1%B5" class="extiw" title="commons:首页">维基共享资源</a>。请参阅维基共享资源上的<b><a class="external text" href="https://commons.wikimedia.org/wiki/File:Convolution_of_spiky_function_with_box2.gif?uselang=zh">详细描述</a></b>、<a class="external text" href="https://commons.wikimedia.org/wiki/File_talk:Convolution_of_spiky_function_with_box2.gif?uselang=zh">讨论页</a>、<a class="external text" href="https://commons.wikimedia.org/wiki/File:Convolution_of_spiky_function_with_box2.gif?action=history&uselang=zh">页面历史</a>、<a class="external text" href="https://commons.wikimedia.org/wiki/Special:Log?uselang=zh&page=File:Convolution_of_spiky_function_with_box2.gif">日志</a>。 <div style="text-align: center; font-size:smaller;">维基共享资源是一个储存自由版权作品的项目。您可以向此项目<a href="https://commons.wikimedia.org/wiki/Commons:Upload/zh" class="extiw" title="commons:Commons:Upload/zh">作出贡献</a>。</div></td></tr></tbody></table> </div> <hr style="clear:both; width:100%; color:#c00000; background-color:#c00000; height:3px; margin-top:0.4em;" /><div id="shared-image-desc"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="hproduct commons-file-information-table"> <table class="fileinfotpl-type-information vevent" dir="ltr"> <tbody><tr> <td id="fileinfotpl_desc" class="fileinfo-paramfield" lang="zh">描述<span class="summary fn" style="display:none">Convolution of spiky function with box2.gif</span></td> <td class="description"> An animation displaying the process and result of convolving a box signal with a spiky impulse response. For each position in the resulting hat function the input functions and the multiplied input functions are shown, and the area which is integrated is marked. This work mimics <a href="//commons.wikimedia.org/wiki/File:Convolucion_de_entrada_con_respuesta_al_impulso.gif" title="File:Convolucion de entrada con respuesta al impulso.gif">File:Convolucion de entrada con respuesta al impulso.gif</a> but includes the source code and shows the result of the convolution in the same graph as the input functions. The function used is <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle e^{-t}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msup> <mi>e</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> <mi>t</mi> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle e^{-t}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/cc987d6247e7f505fdc20a6ac2ca8f1bc8a4902d" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:3.188ex; height:2.509ex;" alt="{\displaystyle e^{-t}}"></span> for <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle t\geq 0}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>t</mi> <mo>≥</mo> <mn>0</mn> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle t\geq 0}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/248525429e9cd266f53ab8c52d17bc206c546060" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.505ex; width:5.101ex; height:2.343ex;" alt="{\displaystyle t\geq 0}"></span> and <i>0</i> otherwise.</td> </tr> <tr> <td id="fileinfotpl_date" class="fileinfo-paramfield" lang="zh">日期</td> <td lang="zh"> <time class="dtstart" datetime="2010-07-26 00:07" lang="zh" dir="ltr" style="white-space:nowrap">2010年7月26日, 00:07</time> (UTC)</td> </tr> <tr> <td id="fileinfotpl_src" class="fileinfo-paramfield" lang="zh">来源</td> <td> <ul><li><a href="//commons.wikimedia.org/wiki/File:Convolution_of_spiky_function_with_box.gif" title="File:Convolution of spiky function with box.gif">Convolution_of_spiky_function_with_box.gif</a></li></ul></td> </tr> <tr> <td id="fileinfotpl_aut" class="fileinfo-paramfield" lang="zh">作者</td> <td> <ul><li><a href="//commons.wikimedia.org/wiki/File:Convolution_of_spiky_function_with_box.gif" title="File:Convolution of spiky function with box.gif">Convolution_of_spiky_function_with_box.gif</a>: Brian Amberg</li> <li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Tinos" title="User:Tinos">Tinos</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Tinos" title="User talk:Tinos"><span class="signature-talk">talk</span></a>)</li></ul></td> </tr> </tbody></table> </div> <div style="display:inline-block;width:;white-space:nowrap;vertical-align:middle;direction:ltr;float:left;line-height:22px;height:24px;font-size:.96em;margin:0px;padding:2px 4px 2px 6px;color:var(--color-base,#000);background:var(--background-color-neutral-subtle,#F8F9FA);border:1px solid #BAB;;"><span typeof="mw:File"><a href="//commons.wikimedia.org/wiki/File:Matlab_Logo.png" class="mw-file-description"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/2/21/Matlab_Logo.png/25px-Matlab_Logo.png" decoding="async" width="25" height="22" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/2/21/Matlab_Logo.png/37px-Matlab_Logo.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/2/21/Matlab_Logo.png/49px-Matlab_Logo.png 2x" data-file-width="2529" data-file-height="2264"></a></span> <div lang="zh-hans" dir="ltr" class="description zh-hans" style="display:inline;">本GIF <a href="https://zh.wikipedia.org/wiki/%E8%AE%A1%E7%AE%97%E6%9C%BA%E5%9B%BE%E5%BD%A2" class="extiw" title="zh:计算机图形">位图</a>使用<a href="https://zh.wikipedia.org/wiki/MATLAB" class="extiw" title="zh:MATLAB">MATLAB</a>创作.</div></div> <div class="mw-heading mw-heading2"><h2 id="MATLAB_Code">MATLAB Code</h2></div> <div class="mw-highlight mw-highlight-lang-matlab mw-content-ltr" dir="ltr"><pre><span></span><span class="c">% Create folding of rectangular impulse with spiky function</span> <span class="nb">clear</span> <span class="n">X</span><span class="p">=</span><span class="o">-</span><span class="mf">2.1</span><span class="p">:</span><span class="mf">0.001</span><span class="p">:</span><span class="mi">4</span><span class="p">;</span> <span class="n">F1</span><span class="p">=</span><span class="nb">exp</span><span class="p">(</span><span class="o">-</span><span class="n">X</span><span class="p">);</span> <span class="n">F1</span><span class="p">(</span><span class="n">X</span><span class="o"><</span><span class="mi">0</span><span class="p">)=</span><span class="mi">0</span><span class="p">;</span> <span class="n">F2</span><span class="p">=</span><span class="nb">abs</span><span class="p">(</span><span class="n">X</span><span class="p">)</span><span class="o"><=</span><span class="mf">0.5</span><span class="p">;</span> <span class="n">clf</span> <span class="s">mkdir('tmp')</span><span class="p">;</span> <span class="p">[</span><span class="n">tmp</span><span class="w"> </span><span class="n">zero_offset</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">min</span><span class="p">(</span><span class="nb">abs</span><span class="p">(</span><span class="n">X</span><span class="p">));</span> <span class="n">SyncFrames</span><span class="p">=[</span><span class="mi">1</span><span class="w"> </span><span class="nb">round</span><span class="p">(</span><span class="mf">20.3366666</span><span class="o">*</span><span class="p">(</span><span class="mi">1</span><span class="p">:</span><span class="nb">numel</span><span class="p">(</span><span class="n">X</span><span class="p">)))];</span> <span class="n">frame</span><span class="p">=</span><span class="mi">1</span><span class="p">;</span> <span class="nb">integral</span><span class="p">=</span><span class="n">nan</span><span class="p">(</span><span class="nb">size</span><span class="p">(</span><span class="n">X</span><span class="p">));</span> <span class="k">for</span><span class="w"> </span><span class="n">offset_i</span><span class="p">=</span><span class="mi">1</span><span class="p">:</span><span class="nb">numel</span><span class="p">(</span><span class="n">X</span><span class="p">);</span> <span class="w"> </span><span class="n">offset</span><span class="p">=</span><span class="n">X</span><span class="p">(</span><span class="n">offset_i</span><span class="p">);</span> <span class="w"> </span><span class="n">shift</span><span class="p">=</span><span class="n">offset_i</span><span class="o">-</span><span class="n">zero_offset</span><span class="p">;</span> <span class="w"> </span><span class="n">F2_shifted</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">circshift</span><span class="p">(</span><span class="n">F2</span><span class="p">,</span><span class="w"> </span><span class="p">[</span><span class="mi">0</span><span class="w"> </span><span class="n">shift</span><span class="p">]);</span> <span class="w"> </span><span class="n">product</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="n">F2_shifted</span><span class="o">.*</span><span class="n">F1</span><span class="p">;</span> <span class="w"> </span><span class="nb">integral</span><span class="p">(</span><span class="n">offset_i</span><span class="p">)</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">sum</span><span class="p">(</span><span class="n">product</span><span class="p">)</span><span class="o">/</span><span class="nb">numel</span><span class="p">(</span><span class="n">X</span><span class="p">)</span><span class="o">*</span><span class="p">(</span><span class="n">X</span><span class="p">(</span><span class="k">end</span><span class="p">)</span><span class="o">-</span><span class="n">X</span><span class="p">(</span><span class="mi">1</span><span class="p">));</span> <span class="w"> </span> <span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">offset_i</span><span class="o">==</span><span class="n">SyncFrames</span><span class="p">(</span><span class="n">frame</span><span class="p">)</span> <span class="w"> </span><span class="n">frame</span><span class="p">=</span><span class="n">frame</span><span class="o">+</span><span class="mi">1</span><span class="p">;</span> <span class="w"> </span><span class="nb">area</span><span class="p">(</span><span class="n">X</span><span class="p">,</span><span class="w"> </span><span class="n">product</span><span class="p">,</span><span class="w"> </span><span class="s">'facecolor'</span><span class="p">,</span><span class="w"> </span><span class="s">'yellow'</span><span class="p">);</span> <span class="w"> </span><span class="n">hold</span><span class="w"> </span><span class="s">on</span> <span class="w"> </span><span class="nb">plot</span><span class="p">(</span><span class="n">X</span><span class="p">,</span><span class="w"> </span><span class="n">F1</span><span class="p">,</span><span class="w"> </span><span class="s">'b'</span><span class="p">,</span><span class="w"> </span><span class="n">X</span><span class="p">,</span><span class="w"> </span><span class="n">F2_shifted</span><span class="p">,</span><span class="w"> </span><span class="s">'r'</span><span class="p">,</span><span class="w"> </span><span class="n">X</span><span class="p">,</span><span class="w"> </span><span class="nb">integral</span><span class="p">,</span><span class="w"> </span><span class="s">'k'</span><span class="p">,</span><span class="w"> </span><span class="p">[</span><span class="n">offset</span><span class="w"> </span><span class="n">offset</span><span class="p">],</span><span class="w"> </span><span class="p">[</span><span class="mi">0</span><span class="w"> </span><span class="mi">2</span><span class="p">],</span><span class="w"> </span><span class="s">'k:'</span><span class="p">)</span> <span class="w"> </span><span class="nb">hold</span><span class="w"> </span><span class="n">off</span> <span class="w"> </span><span class="nb">axis</span><span class="w"> </span><span class="nb">image</span> <span class="w"> </span><span class="nb">axis</span><span class="p">([</span><span class="o">-</span><span class="mf">1.6</span><span class="w"> </span><span class="mf">3.1</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="mf">1.1</span><span class="p">])</span> <span class="w"> </span><span class="nb">xlabel</span><span class="p">(</span><span class="s">'\tau & t'</span><span class="p">);</span> <span class="w"> </span><span class="n">grid</span><span class="w"> </span><span class="s">on</span> <span class="w"> </span><span class="nb">legend</span><span class="p">(</span><span class="s">'Area under f(\tau)g(t-\tau)'</span><span class="p">,</span><span class="w"> </span><span class="s">'f(\tau)'</span><span class="p">,</span><span class="w"> </span><span class="s">'g(t-\tau)'</span><span class="p">,</span><span class="w"> </span><span class="s">'(f\astg)(t)'</span><span class="p">);</span> <span class="w"> </span><span class="nb">print</span><span class="p">(</span><span class="s">'-dpng'</span><span class="p">,</span><span class="s">'-r72'</span><span class="p">,</span><span class="nb">sprintf</span><span class="p">(</span><span class="s">'tmp/conv_box_spike_%06d.png'</span><span class="p">,</span><span class="w"> </span><span class="n">offset_i</span><span class="p">));</span> <span class="w"> </span><span class="n">drawnow</span> <span class="w"> </span><span class="s">end</span> <span class="k">end</span> <span class="nb">system</span><span class="p">(</span><span class="s">'"C:\Program Files\ImageMagick-6.6.3-Q16\convert.exe" -layers Optimize -delay 5 tmp/conv_box_spike_*.png conv_box_spike.gif'</span><span class="p">);</span> <span class="nb">delete</span><span class="p">(</span><span class="s">'tmp/*'</span><span class="p">);</span> <span class="nb">rmdir</span><span class="p">(</span><span class="s">'tmp'</span><span class="p">);</span> </pre></div> <p>Photoshop was then used to crop the animation. </p><p><br> </p> <table class="layouttemplate" lang="zh-hans" dir="ltr" style="margin:.5em auto;width:100%;background:var(--background-color-neutral-subtle,#f8f8f8);border:2px solid var(--border-color-muted,#EEE);color: inherit;padding:5px"> <tbody><tr> <td style="padding:5px"><div class="wpImageAnnotatorControl wpImageAnnotatorOff"><span typeof="mw:File"><a href="//commons.wikimedia.org/wiki/File:Applications-graphics.svg" class="mw-file-description"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/76/Applications-graphics.svg/45px-Applications-graphics.svg.png" decoding="async" width="45" height="45" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/7/76/Applications-graphics.svg/68px-Applications-graphics.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/7/76/Applications-graphics.svg/90px-Applications-graphics.svg.png 2x" data-file-width="48" data-file-height="48"></a></span></div> </td> <td style="width:100%">这是一张<b><a href="https://zh.wikipedia.org/wiki/%E5%9B%BE%E5%83%8F%E7%BC%96%E8%BE%91" class="extiw" title="zh:图像编辑">修改过的图片</a></b>，这意味着它已在原版本的基础上通过软件进行了编辑，改动内容：<i>Fixed asterisk, and put tau in.</i>。其原始版本为：<a href="//commons.wikimedia.org/wiki/File:Convolution_of_spiky_function_with_box.gif" title="File:Convolution of spiky function with box.gif"><b>Convolution of spiky function with box.gif</b></a>。修改者：<i><a href="//commons.wikimedia.org/wiki/User:Tinos" title="User:Tinos">Tinos</a></i>。 <p><span class="layouttemplateargs" style="display:none;speak:none;" title="template=Retouched+picture 1%3D 2%3D 3%3D 4%3D 5%3D"> </span> </p> </td></tr></tbody></table> <div style="clear:both; margin:0.5em auto; background-color:var(--background-color-interactive,#eaecf0); color:inherit; border:2px solid var(--border-color-subtle,#c8ccd1); padding:8px; direction:ltr;" class="licensetpl_wrapper"><div class="center" style="font-weight:bold;"><div lang="zh" dir="ltr" class="description zh" style="display:inline;">我，本作品著作权人，特此采用以下许可协议发表本作品：</div></div> <style data-mw-deduplicate="TemplateStyles:r890281695">.mw-parser-output .responsive-license-cc{clear:both;text-align:center;box-sizing:border-box;width:100%;justify-content:space-around;align-items:center;margin:0.5em auto;color:var(--color-base,#202122);background-color:var(--background-color-neutral-subtle,#f9f9f9);border-width:2px;border-style:solid;border-top-color:var(--border-color-subtle,#e0e0e0);border-right-color:var(--border-color-subtle,#e0e0e0);border-bottom-color:var(--border-color-subtle,#e0e0e0);border-left-color:var(--border-color-subtle,#e0e0e0);border-spacing:8px;display:flex}.mw-parser-output .responsive-license-cc div{margin:4px}.mw-parser-output .rlicense-text div{margin:0.5em auto}@media screen and (max-width:640px){.mw-parser-output .responsive-license-cc{flex-flow:column}.mw-parser-output .rlicense-text{order:1}}</style><div class="responsive-license-cc layouttemplate licensetpl" dir="ltr" lang="zh"><div class="rlicense-icons"><span class="skin-invert" typeof="mw:File"><span title="w:zh:知识共享"><img alt="w:zh:知识共享" src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/90px-CC_some_rights_reserved.svg.png" decoding="async" width="90" height="36" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/135px-CC_some_rights_reserved.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/180px-CC_some_rights_reserved.svg.png 2x" data-file-width="744" data-file-height="300"></span></span><br> <span class="skin-invert" typeof="mw:File"><span title="署名"><img alt="署名" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/24px-Cc-by_new_white.svg.png" decoding="async" width="24" height="24" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/36px-Cc-by_new_white.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/48px-Cc-by_new_white.svg.png 2x" data-file-width="64" data-file-height="64"></span></span> <span class="skin-invert" typeof="mw:File"><span title="相同方式共享"><img alt="相同方式共享" src="https://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Cc-sa_white.svg/24px-Cc-sa_white.svg.png" decoding="async" width="24" height="24" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Cc-sa_white.svg/36px-Cc-sa_white.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Cc-sa_white.svg/48px-Cc-sa_white.svg.png 2x" data-file-width="64" data-file-height="64"></span></span></div><div class="rlicense-text"><div class="rlicense-declaration">本文件采用<a href="https://en.wikipedia.org/wiki/zh:%E7%9F%A5%E8%AF%86%E5%85%B1%E4%BA%AB" class="extiw" title="w:zh:知识共享">知识共享</a><a href="//creativecommons.org/licenses/by-sa/3.0/deed.zh-hans" class="extiw" title="creativecommons:by-sa/3.0/deed.zh-hans">署名-相同方式共享 3.0 未本地化版本</a>许可协议授权。</div><div class="rlicense-desc" style="text-align:start;" lang="zh"> <dl><dd>您可以自由地： <ul><li><b>共享</b> – 复制、发行并传播本作品</li> <li><b>修改</b> – 改编作品</li></ul></dd> <dd>惟须遵守下列条件： <ul><li><b>署名</b> – 您必须对作品进行署名，提供授权条款的链接，并说明是否对原始内容进行了更改。您可以用任何合理的方式来署名，但不得以任何方式表明许可人认可您或您的使用。</li> <li><b>相同方式共享</b> – 如果您再混合、转换或者基于本作品进行创作，您必须以<a href="https://creativecommons.org/share-your-work/licensing-considerations/compatible-licenses" class="extiw" title="ccorg:share-your-work/licensing-considerations/compatible-licenses">与原先许可协议相同或相兼容的许可协议</a>分发您贡献的作品。</li></ul></dd></dl></div><span class="licensetpl_link" style="display:none;">https://creativecommons.org/licenses/by-sa/3.0</span><span class="licensetpl_short" style="display:none;">CC BY-SA 3.0 </span><span class="licensetpl_long" style="display:none;">Creative Commons Attribution-Share Alike 3.0 </span><span class="licensetpl_link_req" style="display:none;">true</span><span class="licensetpl_attr_req" style="display:none;">true</span></div></div> <table cellspacing="8" cellpadding="0" style="width:100%; clear:both; margin:0.5em auto; background-color: var(--background-color-neutral-subtle, #f9f9f9); color: var(--color-base, #202122); border: var(--border-subtle, 2px solid #e0e0e0);" dir="ltr" lang="zh" class="layouttemplate licensetpl"> <tbody><tr> <td><span class="noviewer" typeof="mw:File"><span title="GNU head"><img alt="GNU head" src="https://upload.wikimedia.org/wikipedia/commons/thumb/2/22/Heckert_GNU_white.svg/64px-Heckert_GNU_white.svg.png" decoding="async" width="64" height="63" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/2/22/Heckert_GNU_white.svg/96px-Heckert_GNU_white.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/2/22/Heckert_GNU_white.svg/128px-Heckert_GNU_white.svg.png 2x" data-file-width="535" data-file-height="523"></span></span> </td> <td>已授权您依据<a href="https://en.wikipedia.org/wiki/zh:%E8%87%AA%E7%94%B1%E8%BD%AF%E4%BB%B6%E5%9F%BA%E9%87%91%E4%BC%9A" class="extiw" title="w:zh:自由软件基金会">自由软件基金会</a>发行的无固定段落及封面封底文字（Invariant Sections, Front-Cover Texts, and Back-Cover Texts）的<b><a href="https://en.wikipedia.org/wiki/zh:GNU%E8%87%AA%E7%94%B1%E6%96%87%E6%A1%A3%E8%AE%B8%E5%8F%AF%E8%AF%81" class="extiw" title="w:zh:GNU自由文档许可证">GNU自由文件许可协议</a></b>1.2版或任意后续版本的条款，复制、传播和／或修改本文件。该协议的副本请见“<a href="//commons.wikimedia.org/wiki/Commons:GNU_Free_Documentation_License,_version_1.2" title="Commons:GNU Free Documentation License, version 1.2">GNU Free Documentation License</a>”。<span class="licensetpl_link" style="display:none;">http://www.gnu.org/copyleft/fdl.html</span><span class="licensetpl_short" style="display:none;">GFDL</span><span class="licensetpl_long" style="display:none;">GNU Free Documentation License</span><span class="licensetpl_link_req" style="display:none;">true</span><span class="licensetpl_attr_req" style="display:none;">true</span> </td></tr></tbody></table> <div class="center"><div lang="zh" dir="ltr" class="description zh" style="display:inline;">您可以选择您需要的许可协议。</div></div></div> <div class="mw-heading mw-heading2"><h2 id="原始上传日志"><span id=".E5.8E.9F.E5.A7.8B.E4.B8.8A.E4.BC.A0.E6.97.A5.E5.BF.97"></span>原始上传日志</h2></div> <p>This image is a derivative work of the following images: </p> <ul><li><a href="//commons.wikimedia.org/wiki/File:Convolution_of_spiky_function_with_box.gif" title="File:Convolution of spiky function with box.gif">File:Convolution_of_spiky_function_with_box.gif</a> licensed with Cc-by-sa-3.0, GFDL <ul><li>2010-07-07T18:41:06Z <a href="//commons.wikimedia.org/wiki/User:Rubybrian" title="User:Rubybrian">Rubybrian</a> 475x144 (108640 Bytes) <i>Cropped the image and optimized the output for size using convert -layers Optimize -delay 5 -loop 0 conv_box_spike_*.png conv_box_spike.gif </i></li> <li>2010-07-07T18:22:54Z <a href="//commons.wikimedia.org/wiki/User:Rubybrian" title="User:Rubybrian">Rubybrian</a> 587x159 (1081595 Bytes) <i>== Summary == {{Information |Description=An animation displaying the process and result of convolving a spiky signal with itself. For each position in the resulting hat function the input functions and the multiplied input fu</i></li></ul></li></ul> <p><i>Uploaded with <a href="//commons.wikimedia.org/wiki/Commons:DerivativeFX" title="Commons:DerivativeFX">derivativeFX</a></i> </p><h1 class="mw-slot-header"><mediainfoslotheader></mediainfoslotheader></h1><mediainfoview style="display: none"><mediainfoviewcaptions><div class="wbmi-entityview-captionsPanel oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><h3 class="wbmi-entityview-captions-header">说明</h3><div class="wbmi-entityview-caption oo-ui-layout oo-ui-horizontalLayout"><label class="wbmi-language-label oo-ui-widget oo-ui-widget-enabled oo-ui-labelElement-label oo-ui-labelElement oo-ui-labelWidget">中文</label><div lang="zh" dir="ltr" class="wbmi-caption-value wbmi-entityview-emptyCaption">添加一行文字以描述该文件所表现的内容</div></div></div></mediainfoviewcaptions><mediainfoviewstatements><div id="P180" data-property="P180" data-statements="[]" data-formatvalue="[]" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P180 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><div class="wbmi-statements-widget"><div class="wbmi-statement-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h3 class="wbmi-statements-title">此文件中描述的项目</h3><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/P180" href="https://www.wikidata.org/wiki/Special:EntityPage/P180">描繪內容</a></bdi></h4></div></div></div><div class="wbmi-content-items-group"></div></div></div><div id="P6216" data-property="P6216" data-statements="[{"mainsnak":{"snaktype":"value","property":"P6216","hash":"5570347fdc76d2a80732f51ea10ee4b144a084e0","datavalue":{"value":{"entity-type":"item","numeric-id":50423863,"id":"Q50423863"},"type":"wikibase-entityid"}},"type":"statement","id":"M11003944$AD221954-2966-4A87-B9A1-81D0A37B3E8F","rank":"normal"}]" data-formatvalue="{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":6216,\"id\":\"P6216\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"zh":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P6216\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P6216\">\u8457\u4f5c\u6b0a\u72c0\u614b<\/a>"}},"text\/plain":{"zh":{"":"\u8457\u4f5c\u6b0a\u72c0\u614b"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":50423863,\"id\":\"Q50423863\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"zh":{"P6216":"<a target=\"_blank\" title=\"d:Special:EntityPage\/Q50423863\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/Q50423863\">\u7248\u6743\u6240\u6709<\/a>"}},"text\/plain":{"zh":{"P6216":"\u7248\u6743\u6240\u6709"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P6216 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><div class="wbmi-statements-widget"><div class="wbmi-statement-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/P6216" href="https://www.wikidata.org/wiki/Special:EntityPage/P6216">著作權狀態</a></bdi></h4></div></div></div><div class="wbmi-content-items-group"><div class="wbmi-item wbmi-item-read"><div data-guid="M11003944$AD221954-2966-4A87-B9A1-81D0A37B3E8F" class="wbmi-item-container"><div class="wbmi-entity-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/Q50423863" href="https://www.wikidata.org/wiki/Special:EntityPage/Q50423863">版权所有</a></bdi></h4></div></div></div></div></div></div></div></div><div id="P275" data-property="P275" data-statements="[{"mainsnak":{"snaktype":"value","property":"P275","hash":"a35b4558d66c92eacbe2f569697ffb1934e0316e","datavalue":{"value":{"entity-type":"item","numeric-id":14946043,"id":"Q14946043"},"type":"wikibase-entityid"}},"type":"statement","id":"M11003944$1E9DE5CE-9530-4C25-B179-E1210E99F698","rank":"normal"},{"mainsnak":{"snaktype":"value","property":"P275","hash":"4315b8c41a664bcb36dc3783262461e54b0ddf16","datavalue":{"value":{"entity-type":"item","numeric-id":50829104,"id":"Q50829104"},"type":"wikibase-entityid"}},"type":"statement","id":"M11003944$55D7F772-C7EC-45BC-A1CC-26B845A6CB57","rank":"normal"}]" data-formatvalue="{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":275,\"id\":\"P275\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"zh":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P275\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P275\">\u8bb8\u53ef\u534f\u8bae<\/a>"}},"text\/plain":{"zh":{"":"\u8bb8\u53ef\u534f\u8bae"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":14946043,\"id\":\"Q14946043\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"zh":{"P275":"<a target=\"_blank\" title=\"d:Special:EntityPage\/Q14946043\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/Q14946043\">\u5275\u7528CC\u59d3\u540d\u6a19\u793a-\u76f8\u540c\u65b9\u5f0f\u5206\u4eab3.0\u672a\u672c\u5730\u5316<\/a>"}},"text\/plain":{"zh":{"P275":"\u5275\u7528CC\u59d3\u540d\u6a19\u793a-\u76f8\u540c\u65b9\u5f0f\u5206\u4eab3.0\u672a\u672c\u5730\u5316"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":50829104,\"id\":\"Q50829104\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"zh":{"P275":"<a target=\"_blank\" title=\"d:Special:EntityPage\/Q50829104\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/Q50829104\">GNU\u81ea\u7531\u6587\u6863\u8bb8\u53ef\u8bc11.2\u6216\u66f4\u9ad8\u7248\u672c<\/a>\u00a0<sup class=\"wb-language-fallback-indicator wb-language-fallback-transliteration\">\u7b80\u4f53\u4e2d\u6587\uff08\u5df2\u8f6c\u5199\uff09<\/sup>"}},"text\/plain":{"zh":{"P275":"GNU\u81ea\u7531\u6587\u6863\u8bb8\u53ef\u8bc11.2\u6216\u66f4\u9ad8\u7248\u672c"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P275 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><div class="wbmi-statements-widget"><div class="wbmi-statement-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/P275" href="https://www.wikidata.org/wiki/Special:EntityPage/P275">许可协议</a></bdi></h4></div></div></div><div class="wbmi-content-items-group"><div class="wbmi-item wbmi-item-read"><div data-guid="M11003944$1E9DE5CE-9530-4C25-B179-E1210E99F698" class="wbmi-item-container"><div class="wbmi-entity-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/Q14946043" href="https://www.wikidata.org/wiki/Special:EntityPage/Q14946043">創用CC姓名標示-相同方式分享3.0未本地化</a></bdi></h4></div></div></div></div></div><div class="wbmi-item wbmi-item-read"><div data-guid="M11003944$55D7F772-C7EC-45BC-A1CC-26B845A6CB57" class="wbmi-item-container"><div class="wbmi-entity-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/Q50829104" href="https://www.wikidata.org/wiki/Special:EntityPage/Q50829104">GNU自由文档许可证1.2或更高版本</a> <sup class="wb-language-fallback-indicator wb-language-fallback-transliteration">简体中文（已转写）</sup></bdi></h4></div></div></div></div></div></div></div></div><div id="P571" data-property="P571" data-statements="[{"mainsnak":{"snaktype":"value","property":"P571","hash":"a5bab69d08ffbaaaa3e4189bfc848f562703ac17","datavalue":{"value":{"time":"+2010-07-26T00:00:00Z","timezone":0,"before":0,"after":0,"precision":11,"calendarmodel":"http:\/\/www.wikidata.org\/entity\/Q1985727"},"type":"time"}},"type":"statement","id":"M11003944$0D8C8712-76CA-4EB5-ABFF-6C77A3C6CCE9","rank":"normal"}]" data-formatvalue="{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":571,\"id\":\"P571\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"zh":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P571\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P571\">\u6210\u7acb\u6216\u5efa\u7acb\u6642\u9593<\/a>"}},"text\/plain":{"zh":{"":"\u6210\u7acb\u6216\u5efa\u7acb\u6642\u9593"}}},"{\"value\":{\"time\":\"+2010-07-26T00:00:00Z\",\"timezone\":0,\"before\":0,\"after\":0,\"precision\":11,\"calendarmodel\":\"http:\\\/\\\/www.wikidata.org\\\/entity\\\/Q1985727\"},\"type\":\"time\"}":{"text\/html":{"zh":{"P571":"26 7 2010"}},"text\/plain":{"zh":{"P571":"26 7 2010"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P571 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><div class="wbmi-statements-widget"><div class="wbmi-statement-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/P571" href="https://www.wikidata.org/wiki/Special:EntityPage/P571">成立或建立時間</a></bdi></h4></div></div></div><div class="wbmi-content-items-group"><div class="wbmi-item wbmi-item-read"><div data-guid="M11003944$0D8C8712-76CA-4EB5-ABFF-6C77A3C6CCE9" class="wbmi-item-container"><div class="wbmi-entity-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi>26 7 2010</bdi></h4></div></div></div></div></div></div></div></div><div id="P1163" data-property="P1163" data-statements="[{"mainsnak":{"snaktype":"value","property":"P1163","hash":"772a3bbd6968fdcb7bc1e6d34b2eb394c22f8fda","datavalue":{"value":"image\/gif","type":"string"}},"type":"statement","id":"M11003944$22633FFF-8886-477E-87DF-D19127FEC8C3","rank":"normal"}]" data-formatvalue="{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":1163,\"id\":\"P1163\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"zh":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P1163\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P1163\">\u591a\u5a92\u9ad4\u578b\u5f0f<\/a>"}},"text\/plain":{"zh":{"":"\u591a\u5a92\u9ad4\u578b\u5f0f"}}},"{\"value\":\"image\\\/gif\",\"type\":\"string\"}":{"text\/html":{"zh":{"P1163":"image\/gif"}},"text\/plain":{"zh":{"P1163":"image\/gif"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P1163 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><div class="wbmi-statements-widget"><div class="wbmi-statement-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/P1163" href="https://www.wikidata.org/wiki/Special:EntityPage/P1163">多媒體型式</a></bdi></h4></div></div></div><div class="wbmi-content-items-group"><div class="wbmi-item wbmi-item-read"><div data-guid="M11003944$22633FFF-8886-477E-87DF-D19127FEC8C3" class="wbmi-item-container"><div class="wbmi-entity-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi>image/gif</bdi></h4></div></div></div></div></div></div></div></div><div id="P4092" data-property="P4092" data-statements="[{"mainsnak":{"snaktype":"value","property":"P4092","hash":"2d9f489ef2235ab5058fb83fc3be926d003c256e","datavalue":{"value":"5624386068bae22e7921ba254f1e8bc3b6fafd2d","type":"string"}},"type":"statement","qualifiers":{"P459":[{"snaktype":"value","property":"P459","hash":"75dff03c151b13fbab93742164121c16a6aa0de1","datavalue":{"value":{"entity-type":"item","numeric-id":13414952,"id":"Q13414952"},"type":"wikibase-entityid"}}]},"qualifiers-order":["P459"],"id":"M11003944$78C46634-EADF-470B-80E3-063BF033D3A9","rank":"normal"}]" data-formatvalue="{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":4092,\"id\":\"P4092\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"zh":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P4092\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P4092\">\u6838\u5c0d\u548c<\/a>"}},"text\/plain":{"zh":{"":"\u6838\u5c0d\u548c"}}},"{\"value\":\"5624386068bae22e7921ba254f1e8bc3b6fafd2d\",\"type\":\"string\"}":{"text\/html":{"zh":{"P4092":"5624386068bae22e7921ba254f1e8bc3b6fafd2d"}},"text\/plain":{"zh":{"P4092":"5624386068bae22e7921ba254f1e8bc3b6fafd2d"}}},"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":459,\"id\":\"P459\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"zh":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P459\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P459\">\u786e\u5b9a\u65b9\u6cd5<\/a>"}},"text\/plain":{"zh":{"":"\u786e\u5b9a\u65b9\u6cd5"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":13414952,\"id\":\"Q13414952\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"zh":{"P459":"<a target=\"_blank\" title=\"d:Special:EntityPage\/Q13414952\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/Q13414952\">SHA-1<\/a>"}},"text\/plain":{"zh":{"P459":"SHA-1"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P4092 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><div class="wbmi-statements-widget"><div class="wbmi-statement-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/P4092" href="https://www.wikidata.org/wiki/Special:EntityPage/P4092">核對和</a></bdi></h4></div></div></div><div class="wbmi-content-items-group"><div class="wbmi-item wbmi-item-read"><div data-guid="M11003944$78C46634-EADF-470B-80E3-063BF033D3A9" class="wbmi-item-container"><div class="wbmi-entity-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi>5624386068bae22e7921ba254f1e8bc3b6fafd2d</bdi></h4></div></div></div><div class="wbmi-item-qualifiers"><div class="wbmi-snaklist-container"><div class="wbmi-snaklist-content"><div class="wbmi-snak"><div class="wbmi-snak-value"><a target="_blank" title="d:Special:EntityPage/P459" href="https://www.wikidata.org/wiki/Special:EntityPage/P459">确定方法</a><span class="wbmi-snak-value-separator">：</span><span class="wbmi-snak-value--value"><a target="_blank" title="d:Special:EntityPage/Q13414952" href="https://www.wikidata.org/wiki/Special:EntityPage/Q13414952">SHA-1</a></span></div></div></div></div></div></div></div></div></div></div><div id="P3575" data-property="P3575" data-statements="[{"mainsnak":{"snaktype":"value","property":"P3575","hash":"8797c12754748f0d95c6d16b9dbffea172c77969","datavalue":{"value":{"amount":"+77585","unit":"http:\/\/www.wikidata.org\/entity\/Q8799"},"type":"quantity"}},"type":"statement","id":"M11003944$F0199D8F-1A8D-408E-9644-17B4D540865C","rank":"normal"}]" data-formatvalue="{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":3575,\"id\":\"P3575\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"zh":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P3575\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P3575\">\u8cc7\u6599\u5927\u5c0f<\/a>"}},"text\/plain":{"zh":{"":"\u8cc7\u6599\u5927\u5c0f"}}},"{\"value\":{\"amount\":\"+77585\",\"unit\":\"http:\\\/\\\/www.wikidata.org\\\/entity\\\/Q8799\"},\"type\":\"quantity\"}":{"text\/html":{"zh":{"P3575":"77,585 <span class=\"wb-unit\">\u5b57\u8282<\/span>"}},"text\/plain":{"zh":{"P3575":"77,585 \u5b57\u8282"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P3575 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><div class="wbmi-statements-widget"><div class="wbmi-statement-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/P3575" href="https://www.wikidata.org/wiki/Special:EntityPage/P3575">資料大小</a></bdi></h4></div></div></div><div class="wbmi-content-items-group"><div class="wbmi-item wbmi-item-read"><div data-guid="M11003944$F0199D8F-1A8D-408E-9644-17B4D540865C" class="wbmi-item-container"><div class="wbmi-entity-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi>77,585 <span class="wb-unit">字节</span></bdi></h4></div></div></div></div></div></div></div></div><div id="P2047" data-property="P2047" data-statements="[{"mainsnak":{"snaktype":"value","property":"P2047","hash":"6f7c2d9af1b1ba0e2f66ce71b84509185e8fad98","datavalue":{"value":{"amount":"+15.050000000000079","unit":"http:\/\/www.wikidata.org\/entity\/Q11574"},"type":"quantity"}},"type":"statement","id":"M11003944$EBB0F185-663E-4109-B8FC-4A97E3D7278D","rank":"normal"}]" data-formatvalue="{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":2047,\"id\":\"P2047\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"zh":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P2047\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P2047\">\u65f6\u957f<\/a>"}},"text\/plain":{"zh":{"":"\u65f6\u957f"}}},"{\"value\":{\"amount\":\"+15.050000000000079\",\"unit\":\"http:\\\/\\\/www.wikidata.org\\\/entity\\\/Q11574\"},\"type\":\"quantity\"}":{"text\/html":{"zh":{"P2047":"15.050000000000079 <span class=\"wb-unit\">\u79d2<\/span>"}},"text\/plain":{"zh":{"P2047":"15.050000000000079 \u79d2"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P2047 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><div class="wbmi-statements-widget"><div class="wbmi-statement-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/P2047" href="https://www.wikidata.org/wiki/Special:EntityPage/P2047">时长</a></bdi></h4></div></div></div><div class="wbmi-content-items-group"><div class="wbmi-item wbmi-item-read"><div data-guid="M11003944$EBB0F185-663E-4109-B8FC-4A97E3D7278D" class="wbmi-item-container"><div class="wbmi-entity-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi>15.050000000000079 <span class="wb-unit">秒</span></bdi></h4></div></div></div></div></div></div></div></div><div id="P2048" data-property="P2048" data-statements="[{"mainsnak":{"snaktype":"value","property":"P2048","hash":"b159c28b1940292b3d8951ba2922f0173001e798","datavalue":{"value":{"amount":"+135","unit":"http:\/\/www.wikidata.org\/entity\/Q355198"},"type":"quantity"}},"type":"statement","id":"M11003944$1BA00A7A-1F12-40E3-8CC1-C94A45AEC89C","rank":"normal"}]" data-formatvalue="{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":2048,\"id\":\"P2048\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"zh":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P2048\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P2048\">\u9ad8\u5ea6<\/a>"}},"text\/plain":{"zh":{"":"\u9ad8\u5ea6"}}},"{\"value\":{\"amount\":\"+135\",\"unit\":\"http:\\\/\\\/www.wikidata.org\\\/entity\\\/Q355198\"},\"type\":\"quantity\"}":{"text\/html":{"zh":{"P2048":"135 <span class=\"wb-unit\">\u50cf\u7d20<\/span>"}},"text\/plain":{"zh":{"P2048":"135 \u50cf\u7d20"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P2048 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><div class="wbmi-statements-widget"><div class="wbmi-statement-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/P2048" href="https://www.wikidata.org/wiki/Special:EntityPage/P2048">高度</a></bdi></h4></div></div></div><div class="wbmi-content-items-group"><div class="wbmi-item wbmi-item-read"><div data-guid="M11003944$1BA00A7A-1F12-40E3-8CC1-C94A45AEC89C" class="wbmi-item-container"><div class="wbmi-entity-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi>135 <span class="wb-unit">像素</span></bdi></h4></div></div></div></div></div></div></div></div><div id="P2049" data-property="P2049" data-statements="[{"mainsnak":{"snaktype":"value","property":"P2049","hash":"996218f4fc78857b0017af7a6b588fa5963286de","datavalue":{"value":{"amount":"+468","unit":"http:\/\/www.wikidata.org\/entity\/Q355198"},"type":"quantity"}},"type":"statement","id":"M11003944$3642FD01-7AEC-4177-B5C7-6FC6958889CF","rank":"normal"}]" data-formatvalue="{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":2049,\"id\":\"P2049\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"zh":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P2049\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P2049\">\u5bec\u5ea6<\/a>"}},"text\/plain":{"zh":{"":"\u5bec\u5ea6"}}},"{\"value\":{\"amount\":\"+468\",\"unit\":\"http:\\\/\\\/www.wikidata.org\\\/entity\\\/Q355198\"},\"type\":\"quantity\"}":{"text\/html":{"zh":{"P2049":"468 <span class=\"wb-unit\">\u50cf\u7d20<\/span>"}},"text\/plain":{"zh":{"P2049":"468 \u50cf\u7d20"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P2049 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><div class="wbmi-statements-widget"><div class="wbmi-statement-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/P2049" href="https://www.wikidata.org/wiki/Special:EntityPage/P2049">寬度</a></bdi></h4></div></div></div><div class="wbmi-content-items-group"><div class="wbmi-item wbmi-item-read"><div data-guid="M11003944$3642FD01-7AEC-4177-B5C7-6FC6958889CF" class="wbmi-item-container"><div class="wbmi-entity-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi>468 <span class="wb-unit">像素</span></bdi></h4></div></div></div></div></div></div></div></div></mediainfoviewstatements></mediainfoview>    </div></div> <h2 id="filehistory">文件历史</h2> <div id="mw-imagepage-section-filehistory"> <p>点击某个日期/时间查看对应时刻的文件。 </p> <table class="wikitable filehistory"> <tr><th></th><th>日期/时间</th><th>缩⁠略⁠图</th><th>大小</th><th>用户</th><th>备注</th></tr> <tr><td>当前</td><td class="filehistory-selected" style="white-space: nowrap;"><a href="//upload.wikimedia.org/wikipedia/commons/b/b9/Convolution_of_spiky_function_with_box2.gif">2010年7月26日 (一) 10:12</a></td><td><a href="//upload.wikimedia.org/wikipedia/commons/b/b9/Convolution_of_spiky_function_with_box2.gif"><img alt="2010年7月26日 (一) 10:12版本的缩略图" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b9/Convolution_of_spiky_function_with_box2.gif/120px-Convolution_of_spiky_function_with_box2.gif" decoding="async" loading="lazy" width="120" height="35" data-file-width="468" data-file-height="135" /></a></td><td>468 × 135<span style="white-space: nowrap;">（76 KB）</span></td><td><a href="/w/index.php?title=User:Tinos&action=edit&redlink=1" class="new mw-userlink" title="User:Tinos（页面不存在）"><bdi>Tinos</bdi></a></td><td dir="ltr">Synchronised with Convolution_of_spiky_function_with_box2.gif.</td></tr> <tr><td></td><td style="white-space: nowrap;"><a href="//upload.wikimedia.org/wikipedia/commons/archive/b/b9/20100726101219%21Convolution_of_spiky_function_with_box2.gif">2010年7月26日 (一) 00:20</a></td><td><a href="//upload.wikimedia.org/wikipedia/commons/archive/b/b9/20100726101219%21Convolution_of_spiky_function_with_box2.gif"><img alt="2010年7月26日 (一) 00:20版本的缩略图" src="//upload.wikimedia.org/wikipedia/commons/thumb/archive/b/b9/20100726101219%21Convolution_of_spiky_function_with_box2.gif/120px-Convolution_of_spiky_function_with_box2.gif" decoding="async" loading="lazy" width="120" height="37" data-file-width="469" data-file-height="143" /></a></td><td>469 × 143<span style="white-space: nowrap;">（57 KB）</span></td><td><a href="/w/index.php?title=User:Tinos&action=edit&redlink=1" class="new mw-userlink" title="User:Tinos（页面不存在）"><bdi>Tinos</bdi></a></td><td dir="ltr">{{Information |Description=An animation displaying the process and result of convolving a box signal with a spiky impulse response. For each position in the resulting hat function the input functions and the multiplied input functions are shown, and the a</td></tr> </table> </div> <h2 id="filelinks">文件用途</h2> <div id='mw-imagepage-section-linkstoimage'> <p>以下页面使用本文件： </p><ul class="mw-imagepage-linkstoimage"> <li class="mw-imagepage-linkstoimage-ns0"><a href="/wiki/%E5%8D%B7%E7%A7%AF" title="卷积">卷积</a></li> </ul> </div> <h2 id="globalusage">全域文件用途</h2> <div id="mw-imagepage-section-globalusage"><p>以下其他wiki使用此文件： </p><ul> <li class='mw-gu-onwiki-en_wikipedia_org'>en.wikipedia.org上的用途 <ul> <li><a class="external" href="https://en.wikipedia.org/wiki/Convolution">Convolution</a></li> </ul></li> <li class='mw-gu-onwiki-en_wikibooks_org'>en.wikibooks.org上的用途 <ul> <li><a class="external" href="https://en.wikibooks.org/wiki/Circuit_Theory/Convolution_Integral">Circuit Theory/Convolution Integral</a></li> </ul></li> <li class='mw-gu-onwiki-it_wikipedia_org'>it.wikipedia.org上的用途 <ul> <li><a class="external" href="https://it.wikipedia.org/wiki/Teoria_dei_segnali">Teoria dei segnali</a></li> <li><a class="external" href="https://it.wikipedia.org/wiki/Convoluzione">Convoluzione</a></li> </ul></li> <li class='mw-gu-onwiki-nl_wikipedia_org'>nl.wikipedia.org上的用途 <ul> <li><a class="external" href="https://nl.wikipedia.org/wiki/Convolutie">Convolutie</a></li> </ul></li> <li class='mw-gu-onwiki-pl_wikipedia_org'>pl.wikipedia.org上的用途 <ul> <li><a class="external" href="https://pl.wikipedia.org/wiki/Dyskusja_wikipedysty:Konradek/Archiwum_13">Dyskusja wikipedysty:Konradek/Archiwum 13</a></li> </ul></li> <li class='mw-gu-onwiki-pt_wikipedia_org'>pt.wikipedia.org上的用途 <ul> <li><a class="external" href="https://pt.wikipedia.org/wiki/Convolu%C3%A7%C3%A3o">Convolução</a></li> </ul></li> <li class='mw-gu-onwiki-ro_wikipedia_org'>ro.wikipedia.org上的用途 <ul> <li><a class="external" href="https://ro.wikipedia.org/wiki/Convolu%C8%9Bie">Convoluție</a></li> </ul></li> <li class='mw-gu-onwiki-ru_wikipedia_org'>ru.wikipedia.org上的用途 <ul> <li><a class="external" href="https://ru.wikipedia.org/wiki/%D0%A1%D0%B2%D1%91%D1%80%D1%82%D0%BA%D0%B0_(%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B9_%D0%B0%D0%BD%D0%B0%D0%BB%D0%B8%D0%B7)">Свёртка (математический анализ)</a></li> </ul></li> <li class='mw-gu-onwiki-sq_wikipedia_org'>sq.wikipedia.org上的用途 <ul> <li><a class="external" href="https://sq.wikipedia.org/wiki/Konvolucioni">Konvolucioni</a></li> </ul></li> <li class='mw-gu-onwiki-uk_wikipedia_org'>uk.wikipedia.org上的用途 <ul> <li><a class="external" href="https://uk.wikipedia.org/wiki/%D0%97%D0%B3%D0%BE%D1%80%D1%82%D0%BA%D0%B0_(%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D1%87%D0%BD%D0%B8%D0%B9_%D0%B0%D0%BD%D0%B0%D0%BB%D1%96%D0%B7)">Згортка (математичний аналіз)</a></li> </ul></li> <li class='mw-gu-onwiki-vi_wikipedia_org'>vi.wikipedia.org上的用途 <ul> <li><a class="external" href="https://vi.wikipedia.org/wiki/T%C3%ADch_ch%E1%BA%ADp">Tích chập</a></li> </ul></li> </ul> </div><h2 id="metadata">元数据</h2> <div class="mw-content-ltr mw-imagepage-section-metadata" lang="zh" dir="ltr"><p>此文件中包含有扩展的信息。这些信息可能是由数码相机或扫描仪在创建或数字化过程中所添加。 </p><p> 如果此文件的源文件已经被修改，一些信息在修改后的文件中将不能完全反映出来。</p><table id="mw_metadata" class="mw_metadata collapsed"> <tbody><tr class="exif-software mw-metadata-collapsible"><th>使用软件</th><td><a href="/wiki/Adobe_Photoshop_CS5_Windows" class="mw-redirect" title="Adobe Photoshop CS5 Windows">Adobe Photoshop CS5 Windows</a></td></tr></tbody></table> </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">检索自“<a dir="ltr" href="https://zh.wikipedia.org/wiki/File:Convolution_of_spiky_function_with_box2.gif">https://zh.wikipedia.org/wiki/File:Convolution_of_spiky_function_with_box2.gif</a>”</div></div> <div id="catlinks" class="catlinks catlinks-allhidden" data-mw="interface"><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">隐藏分类：<ul><li><a href="/wiki/Category:%E5%9B%BE%E5%83%8F%E5%B0%BA%E5%AF%B8%E5%A4%A7%E5%B0%8F%E5%B8%A6%E6%9C%89%E9%A2%9D%E5%A4%96px%E5%AD%97%E7%AC%A6%E7%9A%84%E9%A1%B5%E9%9D%A2" title="Category:图像尺寸大小带有额外px字符的页面">图像尺寸大小带有额外px字符的页面</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">隐私政策</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:%E5%85%B3%E4%BA%8E">关于维基百科</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:%E5%85%8D%E8%B4%A3%E5%A3%B0%E6%98%8E">免责声明</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">行为准则</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">开发者</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/zh.wikipedia.org">统计</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Cookie声明</a></li> <li id="footer-places-mobileview"><a href="//zh.m.wikipedia.org/w/index.php?title=File:Convolution_of_spiky_function_with_box2.gif&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">手机版视图</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-f69cdc8f6-drjjp","wgBackendResponseTime":338,"wgPageParseReport":{"limitreport":{"cputime":"0.001","walltime":"0.001","ppvisitednodes":{"value":4,"limit":1000000},"postexpandincludesize":{"value":0,"limit":2097152},"templateargumentsize":{"value":0,"limit":2097152},"expansiondepth":{"value":1,"limit":100},"expensivefunctioncount":{"value":0,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":0,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 0.000 1 -total"]},"cachereport":{"origin":"mw-web.codfw.main-f69cdc8f6-drjjp","timestamp":"20241124114448","ttl":2592000,"transientcontent":false}}});});</script> </body> </html>