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<!DOCTYPE html><html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>DLMF: DLMF Project News</title> <link rel="shortcut icon" href="../.././style/DLMF-16.png" type="image/png"> <script type="text/javascript"></script> <script type="text/javascript" src="../.././style/jquery.js"></script> <script type="text/javascript" src="../.././style/jquery.leaveNotice.js"></script> <script type="text/javascript" src="../.././style/DLMF.js"></script> <script async="" type="text/javascript" id="_fed_an_ua_tag" src="https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOC&subagency=NIST&pua=UA-37115410-44&yt=true&exts=ppsx,pps,f90,sch,rtf,wrl,txz,m1v,xlsm,msi,xsd,f,tif,eps,mpg,xml,pl,xlt,c"></script><script async="" src="https://www.googletagmanager.com/gtag/js?id=G-BZB64W4M0L"></script><script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-BZB64W4M0L'); </script> <link rel="stylesheet" type="text/css" href="../.././style/LaTeXML.css"> <link rel="stylesheet" type="text/css" href="../.././style/DLMF.css"> <link rel="stylesheet" type="text/css" href="../.././style/print.css" media="print"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="top" href="../.././" title="DLMF"> <link rel="copyright" href="../.././about/notices" title="Copyright"> <link rel="search" href="../.././search/search" title="Search"> <link rel="help" class="ltx_help" href="../.././help/" title="Help"> </head> <body class="color_default textfont_default titlefont_default fontsize_default navbar_default"> <div class="ltx_page_navbar"> <div class="ltx_page_navlogo"><a href="../.././" title="Digital Library of Mathematical Functions"><span>DLMF</span></a></div> <div class="ltx_page_navitems"> <form method="get" action="../.././search/search"> <ul> <li><a href="../.././idx/">Index</a></li> <li><a href="../.././not/">Notations</a></li> <li><small><input type="text" name="q" value="" size="6" class="ltx_page_navitem_search"><button type="submit">Search</button></small></li> <li><a href="../.././help/" class="ltx_help">Help?</a></li> <li><a href="../.././help/cite">Citing</a></li> <li><a href="../.././help/customize" class="ltx_customize">Customize</a></li> </ul> </form> </div> <div class="ltx_page_navsponsors"> <div><a href="../.././about/" class="ltx_page_navabout">About the Project</a></div> </div> </div> <div class="ltx_page_main"> <div class="ltx_page_content"> <article class="ltx_document ltx_leqno"> <h1 class="ltx_title ltx_title_document">DLMF Project News</h1> <div class="ltx_toc_compact"> ♦ <a href="#S1">Recent News</a> ♦ </div> <section id="S1" class="ltx_section"> <h2 class="ltx_title ltx_title_section">Recent News</h2> <div id="S1.p1" class="ltx_para"> <dl id="S1.I1" class="ltx_description ltx_news"> <dt id="S1.I1.i1" class="ltx_item ltx_newsitem"> <span class="bold">2025-03-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.2.4</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i1.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections, clarifications and updates. (see <a href="../.././errata/#V1.2.4" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.2.4 (March 15, 2025)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i2" class="ltx_item ltx_newsitem"> <span class="bold">2024-12-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.2.3</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i2.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections, clarifications and updates. (see <a href="../.././errata/#V1.2.3" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.2.3 (December 15, 2024)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i3" class="ltx_item ltx_newsitem"> <span class="bold">2024-09-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.2.2</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i3.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections, clarifications and updates. (see <a href="../.././errata/#V1.2.2" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.2.2 (September 15, 2024)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i4" class="ltx_item ltx_newsitem"> <span class="bold">2024-09-15</span> <span class="ltx_font_italic">Barry I. Schneider, General Editor of the DLMF, dies at age 83</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i4.p1" class="ltx_para"> <p class="ltx_p">We regret having to report that Barry Schneider passed away on July 3, 2024. Please see <a href="../.././about/bio/BISchneider" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Barry I. Schneider</span></a> for a tribute and obituary.</p> </div> </dd> <dt id="S1.I1.i5" class="ltx_item ltx_newsitem"> <span class="bold">2024-09-15</span> <span class="ltx_font_italic">New Associate Editors for the DLMF</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i5.p1" class="ltx_para"> <p class="ltx_p">We are happy to report that several individuals have agreed to act as Associate Editor for DLMF chapters. <a href="../.././about/bio/VHMoll" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Victor H. Moll</span></a> will act as Associated Editor for DLMF Chapters <a href="../.././20" title="Chapter 20 Theta Functions" class="ltx_ref"><span class="ltx_text ltx_ref_tag">20</span></a>, <a href="../.././23" title="Chapter 23 Weierstrass Elliptic and Modular Functions" class="ltx_ref"><span class="ltx_text ltx_ref_tag">23</span></a>. <a href="../.././about/bio/GNemes" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Gergő Nemes</span></a> will act as Associate Editor for DLMF Chapters <a href="../.././5" title="Chapter 5 Gamma Function" class="ltx_ref"><span class="ltx_text ltx_ref_tag">5</span></a>, <a href="../.././8" title="Chapter 8 Incomplete Gamma and Related Functions" class="ltx_ref"><span class="ltx_text ltx_ref_tag">8</span></a>, <a href="../.././9" title="Chapter 9 Airy and Related Functions" class="ltx_ref"><span class="ltx_text ltx_ref_tag">9</span></a>, <a href="../.././10" title="Chapter 10 Bessel Functions" class="ltx_ref"><span class="ltx_text ltx_ref_tag">10</span></a>, <a href="../.././11" title="Chapter 11 Struve and Related Functions" class="ltx_ref"><span class="ltx_text ltx_ref_tag">11</span></a>. <a href="../.././about/bio/JVanderJeugt" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Joris Van der Jeugt</span></a> will act as Associate Editor for Chapter <a href="../.././34" title="Chapter 34 3⁢𝑗,6⁢𝑗,9⁢𝑗 Symbols" class="ltx_ref"><span class="ltx_text ltx_ref_tag">34</span></a>. <a href="../.././about/bio/HVolkmer" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Hans Volkmer</span></a> will act as Associate Editor for DLMF Chapters <a href="../.././22" title="Chapter 22 Jacobian Elliptic Functions" class="ltx_ref"><span class="ltx_text ltx_ref_tag">22</span></a>, <a href="../.././28" title="Chapter 28 Mathieu Functions and Hill’s Equation" class="ltx_ref"><span class="ltx_text ltx_ref_tag">28</span></a>, <a href="../.././29" title="Chapter 29 Lamé Functions" class="ltx_ref"><span class="ltx_text ltx_ref_tag">29</span></a>, <a href="../.././30" title="Chapter 30 Spheroidal Wave Functions" class="ltx_ref"><span class="ltx_text ltx_ref_tag">30</span></a>, <a href="../.././31" title="Chapter 31 Heun Functions" class="ltx_ref"><span class="ltx_text ltx_ref_tag">31</span></a>.</p> </div> </dd> <dt id="S1.I1.i6" class="ltx_item ltx_newsitem"> <span class="bold">2024-06-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.2.1</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i6.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.2.1" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.2.1 (June 15, 2024)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i7" class="ltx_item ltx_newsitem"> <span class="bold">2024-03-27</span> <span class="ltx_font_italic">DLMF Update; Version 1.2.0</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i7.p1" class="ltx_para"> <p class="ltx_p">On advice of the senior associate editors it was decided in 2016 to expand Chapter <a href="../.././18" title="Chapter 18 Orthogonal Polynomials" class="ltx_ref"><span class="ltx_text ltx_ref_tag">18</span></a> (Orthogonal Polynomials (OP)). Most sections were enlarged including the sections on associated OP’s, Pollaczek polynomials and physical applications. To help the users of the DLMF it was decided that much more information should be given in the section on general OP’s, and as a consequence Chapter <a href="../.././1" title="Chapter 1 Algebraic and Analytic Methods" class="ltx_ref"><span class="ltx_text ltx_ref_tag">1</span></a> (Algebraic and Analytic Methods) did need a significant expansion, especially more information on matrix analysis, measure theory, spectral analysis, and a new section on linear second order differential operators and eigenfunction expansions. This release increments the minor version number and contains considerable additions of new material and clarifications (see <a href="../.././errata/#V1.2.0" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.2.0 (March 27, 2024)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i8" class="ltx_item ltx_newsitem"> <span class="bold">2023-12-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.1.12</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i8.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.1.12" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.1.12 (December 15, 2023)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i9" class="ltx_item ltx_newsitem"> <span class="bold">2023-10-24</span> <span class="ltx_font_italic">Diego Dominici, Associate Editor of the DLMF, dies at age 51</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i9.p1" class="ltx_para"> <p class="ltx_p">We regret having to report that Diego Dominici passed away on October 16, 2023. Please see <a href="../.././about/bio/DDominici" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Diego Dominici</span></a> for a tribute and obituary.</p> </div> </dd> <dt id="S1.I1.i10" class="ltx_item ltx_newsitem"> <span class="bold">2023-09-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.1.11</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i10.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.1.11" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.1.11 (September 15, 2023)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i11" class="ltx_item ltx_newsitem"> <span class="bold">2023-06-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.1.10</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i11.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.1.10" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.1.10 (June 15, 2023)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i12" class="ltx_item ltx_newsitem"> <span class="bold">2023-06-15</span> <span class="ltx_font_italic">Brian R. Judd, DLMF Validator, dies at age 92</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i12.p1" class="ltx_para"> <p class="ltx_p">We regret having to report that Brian R. Judd passed away on April 8, 2023. Please see <a href="../.././about/bio/BRJudd" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Brian R. Judd</span></a> for an update.</p> </div> </dd> <dt id="S1.I1.i13" class="ltx_item ltx_newsitem"> <span class="bold">2023-06-15</span> <span class="ltx_font_italic">Ross Barnett, DLMF Validator, died at age 79</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i13.p1" class="ltx_para"> <p class="ltx_p">We regret having to report that Ross R. Barnett passed away on November 21, 2018. Please see <a href="../.././about/bio/ARBarnett" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Antony Ross Barnett</span></a> for an update.</p> </div> </dd> <dt id="S1.I1.i14" class="ltx_item ltx_newsitem"> <span class="bold">2023-03-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.1.9; MathML is now default</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i14.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.1.9" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.1.9 (March 15, 2023)</span></a> for details).</p> </div> <div id="S1.I1.i14.p2" class="ltx_para"> <p class="ltx_p">DLMF now uses browser-native MathML rendering for mathematics, by default, in all browsers which support MathML. See <a href="../.././help/mathml" title="In Need Help?" class="ltx_ref"><span class="ltx_text ltx_ref_title">About MathML</span></a> for more details and for other options.</p> </div> </dd> <dt id="S1.I1.i15" class="ltx_item ltx_newsitem"> <span class="bold">2022-12-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.1.8; MathML improvements</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i15.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.1.8" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.1.8 (December 15, 2022)</span></a> for details). Our mathematics markup now conforms with the MathML Core specification and should be acceptable in most browsers (current Firefox, Safari and the upcoming Chrome release; see <a href="../.././help/mathml" title="In Need Help?" class="ltx_ref"><span class="ltx_text ltx_ref_title">About MathML</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i16" class="ltx_item ltx_newsitem"> <span class="bold">2022-12-15</span> <span class="ltx_font_italic">Richard B. Paris, Associate Editor of the DLMF, dies at age 76</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i16.p1" class="ltx_para"> <p class="ltx_p">We regret having to report that Richard B. Paris passed away on July 8, 2022. Please see <a href="../.././about/bio/RBParis" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Richard B. Paris</span></a> for a tribute and obituary.</p> </div> </dd> <dt id="S1.I1.i17" class="ltx_item ltx_newsitem"> <span class="bold">2022-10-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.1.7; Enhanced coverage of Lambert <math class="ltx_Math" altimg="m1.png" altimg-height="18px" altimg-valign="-2px" altimg-width="27px" alttext="W" display="inline"><mi href="../.././4.13#E1" title="Lambert 𝑊-function">W</mi></math></span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i17.p1" class="ltx_para"> <p class="ltx_p">This update includes enhanced coverage of the Lambert <math class="ltx_Math" altimg="m1.png" altimg-height="18px" altimg-valign="-2px" altimg-width="27px" alttext="W" display="inline"><mi href="../.././4.13#E1" title="Lambert 𝑊-function">W</mi></math>-function along with other corrections and clarifications. (see <a href="../.././errata/#V1.1.7" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.1.7 (October 15, 2022)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i18" class="ltx_item ltx_newsitem"> <span class="bold">2022-06-30</span> <span class="ltx_font_italic">DLMF Update; Version 1.1.6</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i18.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.1.6" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.1.6 (June 30, 2022)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i19" class="ltx_item ltx_newsitem"> <span class="bold">2022-03-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.1.5</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i19.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.1.5" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.1.5 (March 15, 2022)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i20" class="ltx_item ltx_newsitem"> <span class="bold">2022-01-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.1.4</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i20.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.1.4" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.1.4 (January 15, 2022)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i21" class="ltx_item ltx_newsitem"> <span class="bold">2021-09-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.1.3</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i21.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.1.3" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.1.3 (September 15, 2021)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i22" class="ltx_item ltx_newsitem"> <span class="bold">2021-07-19</span> <span class="ltx_font_italic">Brian D. Sleeman, Associate Editor of the DLMF, dies at age 81</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i22.p1" class="ltx_para"> <p class="ltx_p">We regret having to report that Brian D. Sleeman passed away on July 19, 2021. Please see <a href="../.././about/bio/BDSleeman" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Brian D. Sleeman</span></a> for a tribute and obituary.</p> </div> </dd> <dt id="S1.I1.i23" class="ltx_item ltx_newsitem"> <span class="bold">2021-06-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.1.2</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i23.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.1.2" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.1.2 (June 15, 2021)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i24" class="ltx_item ltx_newsitem"> <span class="bold">2021-03-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.1.1</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i24.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.1.1" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.1.1 (March 15, 2021)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i25" class="ltx_item ltx_newsitem"> <span class="bold">2020-12-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.1.0</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i25.p1" class="ltx_para"> <p class="ltx_p">This release increments the minor version number and contains considerable additions of new material and clarifications. These additions were facilitated by an extension of the scheme for reference numbers. (see <a href="../.././errata/#V1.1.0" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.1.0 (December 15, 2020)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i26" class="ltx_item ltx_newsitem"> <span class="bold">2020-09-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.28</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i26.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.0.28" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.28 (September 15, 2020)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i27" class="ltx_item ltx_newsitem"> <span class="bold">2020-09-15</span> <span class="ltx_font_italic">Ranjan Roy, Associate Editor of the DLMF, dies at age 73</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i27.p1" class="ltx_para"> <p class="ltx_p">We regret having to report that Ranjan Roy passed away on August 12, 2020. Please see <a href="../.././about/bio/RRoy" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Ranjan Roy</span></a> for an update.</p> </div> </dd> <dt id="S1.I1.i28" class="ltx_item ltx_newsitem"> <span class="bold">2020-06-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.27</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i28.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.0.27" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.27 (June 15, 2020)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i29" class="ltx_item ltx_newsitem"> <span class="bold">2020-06-15</span> <span class="ltx_font_italic">Leonard C. Maximon, Associate Editor of the DLMF, dies at age 94</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i29.p1" class="ltx_para"> <p class="ltx_p">We regret having to report that Leonard C. Maximon passed away on January 4, 2020. Please see <a href="../.././about/bio/LCMaximon" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Leonard C. Maximon</span></a> for an update.</p> </div> </dd> <dt id="S1.I1.i30" class="ltx_item ltx_newsitem"> <span class="bold">2020-03-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.26</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i30.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.0.26" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.26 (March 15, 2020)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i31" class="ltx_item ltx_newsitem"> <span class="bold">2019-12-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.25</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i31.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.0.25" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.25 (December 15, 2019)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i32" class="ltx_item ltx_newsitem"> <span class="bold">2019-12-15</span> <span class="ltx_font_italic">Richard A. Askey, Associate Editor of the DLMF, dies at age 86</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i32.p1" class="ltx_para"> <p class="ltx_p">We regret having to report that Richard A. Askey passed away on October 9, 2019. Please see <a href="../.././about/bio/RAAskey" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Richard A. Askey</span></a> for a tribute and obituary.</p> </div> </dd> <dt id="S1.I1.i33" class="ltx_item ltx_newsitem"> <span class="bold">2019-09-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.24</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i33.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.0.24" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.24 (September 15, 2019)</span></a> for details).</p> </div> <div id="S1.I1.i33.p2" class="ltx_para"> <p class="ltx_p">The editorial board was expanded to include <a href="../.././about/bio/HCohl" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Howard S. Cohl</span></a> as Technical Editor and <a href="../.././about/bio/MAMcClain" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Marjorie A. McClain</span></a> as Associate Technical Editor.</p> </div> </dd> <dt id="S1.I1.i34" class="ltx_item ltx_newsitem"> <span class="bold">2019-06-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.23</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i34.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.0.23" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.23 (June 15, 2019)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i35" class="ltx_item ltx_newsitem"> <span class="bold">2019-03-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.22</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i35.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.0.22" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.22 (March 15, 2019)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i36" class="ltx_item ltx_newsitem"> <span class="bold">2018-12-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.21</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i36.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.0.21" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.21 (December 15, 2018)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i37" class="ltx_item ltx_newsitem"> <span class="bold">2018-09-15</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.20</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i37.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.0.20" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.20 (September 15, 2018)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i38" class="ltx_item ltx_newsitem"> <span class="bold">2018-06-22</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.19</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i38.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.0.19" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.19 (June 22, 2018)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i39" class="ltx_item ltx_newsitem"> <span class="bold">2018-06-22</span> <span class="ltx_font_italic">Philip J. Davis, A&S Author, dies at age 95</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i39.p1" class="ltx_para"> <p class="ltx_p">We regret having to report that Philip J. Davis passed away on March 14, 2018. Please see <a href="../.././about/bio/PJDavis" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Philip J. Davis</span></a> for a tribute and obituary.</p> </div> </dd> <dt id="S1.I1.i40" class="ltx_item ltx_newsitem"> <span class="bold">2018-03-27</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.18</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i40.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.0.18" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.18 (March 27, 2018)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i41" class="ltx_item ltx_newsitem"> <span class="bold">2017-12-22</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.17</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i41.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.0.17" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.17 (December 22, 2017)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i42" class="ltx_item ltx_newsitem"> <span class="bold">2017-12-22</span> <span class="ltx_font_italic">Tom M. Apostol, DLMF Author and Validator, dies at age 92</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i42.p1" class="ltx_para"> <p class="ltx_p">We regret having to report that Tom M. Apostol passed away on May 8, 2016. Please see <a href="../.././about/bio/TMApostol" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Tom M. Apostol</span></a> for an update.</p> </div> </dd> <dt id="S1.I1.i43" class="ltx_item ltx_newsitem"> <span class="bold">2017-09-18</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.16</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i43.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections and clarifications. (see <a href="../.././errata/#V1.0.16" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.16 (September 18, 2017)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i44" class="ltx_item ltx_newsitem"> <span class="bold">2017-06-01</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.15</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i44.p1" class="ltx_para"> <p class="ltx_p">This update includes the addition of a new subsection, a change of notation for integral transforms and other clarifications. The graphical decorations, icons and mouse-cursors were freshened to improve interaction and updated to SVG. (see <a href="../.././errata/#V1.0.15" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.15 (June 1, 2017)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i45" class="ltx_item ltx_newsitem"> <span class="bold">2016-12-21</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.14</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i45.p1" class="ltx_para"> <p class="ltx_p">This update includes another set of corrections caught by our readers, improvements in notation and additional citations and clarifications. (see <a href="../.././errata/#V1.0.14" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.14 (December 21, 2016)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i46" class="ltx_item ltx_newsitem"> <span class="bold">2016-09-16</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.13</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i46.p1" class="ltx_para"> <p class="ltx_p">This update includes just a single item; a fix was made to a typographical error made in (<a href="../.././13.9#E16" title="(13.9.16) ‣ §13.9(ii) Zeros of 𝑈(𝑎,𝑏,𝑧) ‣ §13.9 Zeros ‣ Kummer Functions ‣ Chapter 13 Confluent Hypergeometric Functions" class="ltx_ref"><span class="ltx_text ltx_ref_tag">13.9.16</span></a>). (see <a href="../.././errata/#V1.0.13" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.13 (September 16, 2016)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i47" class="ltx_item ltx_newsitem"> <span class="bold">2016-09-09</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.12</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i47.p1" class="ltx_para"> <p class="ltx_p">This update includes another set of corrections caught by our readers, improvements in notation and additional citations and clarifications. (see <a href="../.././errata/#V1.0.12" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.12 (September 9, 2016)</span></a> for details). We’ve also updated our <a href="../.././help/cite" title="In Need Help?" class="ltx_ref"><span class="ltx_text ltx_ref_title">How to Cite</span></a> recommendations.</p> </div> </dd> <dt id="S1.I1.i48" class="ltx_item ltx_newsitem"> <span class="bold">2016-06-08</span> <span class="ltx_font_italic">Future expansion</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i48.p1" class="ltx_para"> <p class="ltx_p">The Editors of the NIST Digital Library of Mathematical Functions have begun to consider how current content can be improved or enlarged. Input from the community is quite welcome as we begin this process. Please send your thoughts to <a href="mailto:dlmf-feedback@nist.gov" title="" class="ltx_ref">DLMF Feedback</a>.</p> </div> </dd> <dt id="S1.I1.i49" class="ltx_item ltx_newsitem"> <span class="bold">2016-06-08</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.11</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i49.p1" class="ltx_para"> <p class="ltx_p">This update includes some small additions, some corrections caught by our readers, improvements in notation and additional citations and clarifications. (see <a href="../.././errata/#V1.0.11" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.11 (June 8, 2016)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i50" class="ltx_item ltx_newsitem"> <span class="bold">2015-08-08</span> <span class="ltx_font_italic">New Feature: List of Figures/Tables</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i50.p1" class="ltx_para"> <p class="ltx_p">Not mentioned in the previous news item was two new features: <a href="../.././lof/" title="" class="ltx_ref"><span class="ltx_text ltx_ref_title">List of Figures</span></a> and <a href="../.././lot/" title="" class="ltx_ref"><span class="ltx_text ltx_ref_title">List of Tables</span></a>.</p> </div> </dd> <dt id="S1.I1.i51" class="ltx_item ltx_newsitem"> <span class="bold">2015-08-07</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.10</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i51.p1" class="ltx_para"> <p class="ltx_p">This update includes some corrections caught by our readers, improvements in notation and additional citations and clarifications. (see <a href="../.././errata/#V1.0.10" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.10 (August 7, 2015)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i52" class="ltx_item ltx_newsitem"> <span class="bold">2015-07-01</span> <span class="ltx_font_italic">Launch of DLMF Standard Reference Tables web service</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i52.p1" class="ltx_para"> <p class="ltx_p">Version 1.0 (beta) of the DLMF Standard Reference Tables web service (DLMF Tables) has been released. Its goal is to provide a standard of comparison for testing numerical software by computing, on demand, values of selected special functions to user-defined precision with guaranteed error bounds.</p> </div> <div id="S1.I1.i52.p2" class="ltx_para"> <p class="ltx_p">DLMF Tables has the following features:</p> <ol id="S1.I1.i52.I1" class="ltx_enumerate"> <li id="S1.I1.i52.I1.i1" class="ltx_item" style="list-style-type:none;"> <span class="ltx_tag ltx_tag_item">1.</span> <div id="S1.I1.i52.I1.i1.p1" class="ltx_para"> <p class="ltx_p">arguments are read from web form or uploaded file;</p> </div> </li> <li id="S1.I1.i52.I1.i2" class="ltx_item" style="list-style-type:none;"> <span class="ltx_tag ltx_tag_item">2.</span> <div id="S1.I1.i52.I1.i2.p1" class="ltx_para"> <p class="ltx_p">user-specified precision (up to 500 digits);</p> </div> </li> <li id="S1.I1.i52.I1.i3" class="ltx_item" style="list-style-type:none;"> <span class="ltx_tag ltx_tag_item">3.</span> <div id="S1.I1.i52.I1.i3.p1" class="ltx_para"> <p class="ltx_p">computation errors (truncation and rounding) are analyzed a priori to satisfy the required accuracy;</p> </div> </li> <li id="S1.I1.i52.I1.i4" class="ltx_item" style="list-style-type:none;"> <span class="ltx_tag ltx_tag_item">4.</span> <div id="S1.I1.i52.I1.i4.p1" class="ltx_para"> <p class="ltx_p">provides strict high-precision enclosures (upper/lower bounds);</p> </div> </li> <li id="S1.I1.i52.I1.i5" class="ltx_item" style="list-style-type:none;"> <span class="ltx_tag ltx_tag_item">5.</span> <div id="S1.I1.i52.I1.i5.p1" class="ltx_para"> <p class="ltx_p">optional round to nearest or directed roundings;</p> </div> </li> <li id="S1.I1.i52.I1.i6" class="ltx_item" style="list-style-type:none;"> <span class="ltx_tag ltx_tag_item">6.</span> <div id="S1.I1.i52.I1.i6.p1" class="ltx_para"> <p class="ltx_p">comparison to user-supplied function values, highlighting any differences and providing approximate relative errors;</p> </div> </li> <li id="S1.I1.i52.I1.i7" class="ltx_item" style="list-style-type:none;"> <span class="ltx_tag ltx_tag_item">7.</span> <div id="S1.I1.i52.I1.i7.p1" class="ltx_para"> <p class="ltx_p">links to function definitions in <a href="http://dlmf.nist.gov/" title="" class="ltx_ref ltx_url ltx_font_typewriter">http://dlmf.nist.gov/</a>, the NIST Digital Library of Mathematical Functions.</p> </div> </li> </ol> </div> <div id="S1.I1.i52.p3" class="ltx_para"> <p class="ltx_p">DLMF Tables is available at <a href="http://dlmftables.uantwerpen.be/" title="" class="ltx_ref ltx_url external ltx_font_typewriter">http://dlmftables.uantwerpen.be/</a></p> </div> <div id="S1.I1.i52.p4" class="ltx_para"> <p class="ltx_p">It is a result of collaboration between the NIST Applied and Computational Mathematics Division and the University of Antwerp Computational Mathematics Research Group. Any comments on the new service will be gratefully received at <a href="mailto:dlmftables-feedback@nist.gov" title="" class="ltx_ref">DLMFTables Feedback</a>.</p> </div> </dd> <dt id="S1.I1.i53" class="ltx_item ltx_newsitem"> <span class="bold">2014-08-29</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.9</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i53.p1" class="ltx_para"> <p class="ltx_p">This update includes a few corrections caught by our readers, improvements in notation and additional citations and clarifications (see <a href="../.././errata/#V1.0.9" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.9 (August 29, 2014)</span></a> for details).</p> </div> </dd> <dt id="S1.I1.i54" class="ltx_item ltx_newsitem"> <span class="bold">2014-04-25</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.8; errata & improved MathML</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i54.p1" class="ltx_para"> <p class="ltx_p">This update includes corrections caught by our readers, along with a few clarifications (see <a href="../.././errata/#V1.0.8" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.8 (April 25, 2014)</span></a> for details).</p> </div> <div id="S1.I1.i54.p2" class="ltx_para"> <p class="ltx_p">We also changed the characters previously used for exponential e, imaginary i and differential d, from special Unicode characters, which were not always available locally for use by browsers, to normal characters. In addition, some minor changes to page layouts have been implemented.</p> </div> <div id="S1.I1.i54.p3" class="ltx_para"> <p class="ltx_p">The editorial board was expanded to include <a href="../.././about/bio/BISchneider" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Barry I. Schneider</span></a> as Associate General Editor, <a href="../.././about/bio/BRMiller" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Bruce R. Miller</span></a> as Information Technology Editor and <a href="../.././about/bio/BVSaunders" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Bonita V. Saunders</span></a> as Visualization Editor.</p> </div> </dd> <dt id="S1.I1.i55" class="ltx_item ltx_newsitem"> <span class="bold">2014-03-21</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.7; <span class="ltx_text ltx_NEW">New Features improve Math & 3D Graphics</span></span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i55.p1" class="ltx_para"> <p class="ltx_p">This significant update enhances the accessibility, portability and usability of DLMF:</p> <ul id="S1.I1.i55.I1" class="ltx_itemize"> <li id="S1.I1.i55.I1.ix1" class="ltx_item" style="list-style-type:none;"> <span class="ltx_tag ltx_tag_item"><span class="ltx_text ltx_NEW">New Feature:</span></span> <div id="S1.I1.i55.I1.ix1.p1" class="ltx_para"> <p class="ltx_p">The default document format is now HTML5 which includes MathML providing better accessibility and display of mathematics. See <a href="../.././help/browsers" title="In Need Help?" class="ltx_ref"><span class="ltx_text ltx_ref_title">Browsers</span></a> for more information and solutions to potential problems.</p> </div> </li> <li id="S1.I1.i55.I1.ix2" class="ltx_item" style="list-style-type:none;"> <span class="ltx_tag ltx_tag_item"><span class="ltx_text ltx_NEW">New Feature:</span></span> <div id="S1.I1.i55.I1.ix2.p1" class="ltx_para"> <p class="ltx_p">All interactive 3D graphics have been recast using WebGL and X3DOM, which is now the default format. This improves portability and performance; It is now possible to interactively rotate, scale and explore function surfaces <em class="ltx_emph ltx_font_italic">without</em> downloading a special plugin. An example can be seen at <a href="../.././5.3.F4.viz" title="" class="ltx_ref">Figure 5.3.4</a>.</p> </div> <div id="S1.I1.i55.I1.ix2.p2" class="ltx_para"> <p class="ltx_p">See <a href="../.././help/vrml/" title="In Need Help?" class="ltx_ref"><span class="ltx_text ltx_ref_title">Viewing DLMF Interactive 3D Graphics</span></a> for more information and solutions to potential problems.</p> </div> </li> <li id="S1.I1.i55.I1.i1" class="ltx_item" style="list-style-type:none;"> <span class="ltx_tag ltx_tag_item"><span class="ltx_text ltx_font_bold">–</span></span> <div id="S1.I1.i55.I1.i1.p1" class="ltx_para"> <p class="ltx_p">Additionally, several errata and clarifications have been made (see <a href="../.././errata/#V1.0.7" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.7 (March 21, 2014)</span></a> for details).</p> </div> </li> </ul> <p class="ltx_p"><span class="ltx_text ltx_phantom"><span style="visibility:hidden"></span></span></p> </div> </dd> <dt id="S1.I1.i56" class="ltx_item ltx_newsitem"> <span class="bold">2013-08-16</span> <span class="ltx_font_italic">Bille C. Carlson, DLMF Author, dies at age 89</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i56.p1" class="ltx_para"> <p class="ltx_p">We regret reporting that Bille C. Carlson passed away on August 16. Please see <a href="../.././about/bio/BCCarlson" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Bille C. Carlson</span></a> for an obituary.</p> </div> </dd> <dt id="S1.I1.i57" class="ltx_item ltx_newsitem"> <span class="bold">2013-04-23</span> <span class="ltx_font_italic">Frank W. J. Olver, Editor-in-Chief of the DLMF, dies at age 88</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i57.p1" class="ltx_para"> <p class="ltx_p">We are very sad to report that Frank W. J. Olver passed away on April 23. Please see <a href="../.././about/bio/FWJOlver" title="In About the Project" class="ltx_ref"><span class="ltx_text ltx_ref_title">Frank W. J. Olver</span></a> for a tribute and obituary.</p> </div> </dd> <dt id="S1.I1.i58" class="ltx_item ltx_newsitem"> <span class="bold">2013-05-06</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.6</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i58.p1" class="ltx_para"> <p class="ltx_p">This minor update improves rendering in various ways, primarily tracking changes to underlying the <a href="http://dlmf.nist.gov/LaTeXML/" title="" class="ltx_ref">LaTeXML</a> system.</p> </div> </dd> <dt id="S1.I1.i59" class="ltx_item ltx_newsitem"> <span class="bold">2012-10-01</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.5</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i59.p1" class="ltx_para"> <p class="ltx_p">This update includes several corrections caught by our readers, along with a number of clarifications and small additions of useful additional material (see <a href="../.././errata/#V1.0.5" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.5 (October 1, 2012)</span></a> for details). The suggestions at <a href="../.././help/cite" title="In Need Help?" class="ltx_ref"><span class="ltx_text ltx_ref_title">How to Cite</span></a> should be more useful, and sample BibTeX entries are now provided. Additionally, the production process has improved the fidelity of the web conversion, resulting in better layout and presentation of math.</p> </div> </dd> <dt id="S1.I1.i60" class="ltx_item ltx_newsitem"> <span class="bold">2012-10-01</span> <span class="ltx_font_italic">Problems with Internet Explorer 9 & MathPlayer 2.2</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i60.p1" class="ltx_para"> <p class="ltx_p">We have reports of problems with MathML display when using MathPlayer 2.2 with IE9. Previous versions, such as IE8, seem to work well. The beta version 3 of MathPlayer should work better; please monitor Design Science’s <a href="http://www.dessci.com/en/products/mathplayer/" title="" class="ltx_ref external">MathPlayer plugin</a> pages for information about updates.</p> </div> <div id="S1.I1.i60.p2" class="ltx_para"> <p class="ltx_p">As a last resort, recall that you can choose the <span class="ltx_text ltx_font_typewriter">HTML+images</span> format in the <a href="../.././help/customize" title="In Need Help?" class="ltx_ref"><span class="ltx_text ltx_ref_title">Customize DLMF</span></a> page — although we would hope this need only be a temporary measure.</p> </div> </dd> <dt id="S1.I1.i61" class="ltx_item ltx_newsitem"> <span class="bold">2012-03-23</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.4</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i61.p1" class="ltx_para"> <p class="ltx_p">This minor update improves rendering of math (particularly continued fractions and line-breaks) and graphics (some diagrams and larger VRML) in several places, as well as enhancements to navigation and additions to the software index. Updated information about VRML and 3D browsers is available; see <a href="../.././help/vrml/" title="In Need Help?" class="ltx_ref"><span class="ltx_text ltx_ref_title">Viewing DLMF Interactive 3D Graphics</span></a>.</p> </div> </dd> <dt id="S1.I1.i62" class="ltx_item ltx_newsitem"> <span class="bold">2011-10-19</span> <span class="ltx_font_italic">Digital Library of Mathematical Functions Team Cited for IT Innovation</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i62.p1" class="ltx_para"> <p class="ltx_p">The NIST Digital Library of Mathematical Functions was selected for recognition as an Outstanding Information Technology Achievement in Government for 2011 by Government Computer News (GCN). According to GCN, these awards “have come to symbolize the best and most notable IT accomplishments in advancing the work of government agencies.” Ten projects were selected for recognition this year from more than 200 nominations. The selection was based on “the degree of innovation in the technology plan carried out, the quality of the leadership that carried the project to fruition,” and “the degree to which a given IT project improved an agency’s ability to operate more efficiently or serve the public more effectively”. Other awardees this year include an app from the City of Boston that enables citizens to request city services from their smartphones and the IT infrastructure that supports the TSA’s secure flight program.NIST staff members cited for this achievement are Daniel Lozier, Frank Olver, Ronald Boisvert, Bruce Miller, Bonita Saunders, Marjorie McClain, Abdou Youssef, Qiming Wang, Brian Antonishek, and Charles Clark. The project team was formally honored at the 24th Annual GCN Awards Gala, October 19, 2011 at the Ritz-Carlton, Tysons Corner in McLean, Va. For further information see <a href="http://gcn.com/articles/2011/08/05/2011-gcn-award-winners.aspx?sc_lang=en" title="" class="ltx_ref ltx_url external ltx_font_typewriter">http://gcn.com/articles/2011/08/05/2011-gcn-award-winners.aspx?sc_lang=en</a> and <a href="http://gcn.com/articles/2011/10/17/nist-math-handbook-profile-main.aspx" title="" class="ltx_ref ltx_url external ltx_font_typewriter">http://gcn.com/articles/2011/10/17/nist-math-handbook-profile-main.aspx</a>.</p> </div> </dd> <dt id="S1.I1.i63" class="ltx_item ltx_newsitem"> <span class="bold">2011-08-29</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.3</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i63.p1" class="ltx_para"> <p class="ltx_p">This update makes some clarifications (see <a href="../.././errata/#V1.0.3" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.3 (Aug 29, 2011)</span></a> for details), along with other minor modifications to the online version: additions to the software index (see <a href="../.././software/" title="" class="ltx_ref"><span class="ltx_text ltx_ref_title">Software Index</span></a>); updated help files; a correction to the VRML phase coloring for <a href="../.././22.3#F24" title="Figure 22.3.24 ‣ §22.3(iv) Complex 𝑘 ‣ §22.3 Graphics ‣ Properties ‣ Chapter 22 Jacobian Elliptic Functions" class="ltx_ref"><span class="ltx_text ltx_ref_tag">22.3.24</span></a>; and improved associations between notations described in <a href="../.././front/introduction" title="" class="ltx_ref"><span class="ltx_text ltx_ref_title">Mathematical Introduction</span></a> and their usages.</p> </div> </dd> <dt id="S1.I1.i64" class="ltx_item ltx_newsitem"> <span class="bold">2011-08-11</span> <span class="ltx_font_italic">Safari 5.1 supports MathML</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i64.p1" class="ltx_para"> <p class="ltx_p">We are pleased to acknowledge native support for MathML in Version 5.1 of the Safari web browser! While it is an excellent initial implementation, it omits support for the <span class="ltx_text ltx_font_typewriter">mmultiscripts</span> element — a critical element for presenting hypergeometric functions.</p> </div> <div id="S1.I1.i64.p2" class="ltx_para"> <p class="ltx_p">To avoid confusion, we regret not yet delivering MathML to Safari browsers, by default. In the meantime, those Safari users who wish to experiment with MathML may enable it by checking <span class="ltx_text ltx_font_typewriter">XHTML+MathML</span> for ‘Document Format’ at <a href="../.././help/customize" title="In Need Help?" class="ltx_ref"><span class="ltx_text ltx_ref_title">Customize DLMF</span></a>; the use of STIX fonts is also encouraged (See <a href="../.././help/mathml#S3" title="In About MathML ‣ Need Help?" class="ltx_ref"><span class="ltx_text ltx_ref_title">Special fonts for MathML</span></a>).</p> </div> <div id="S1.I1.i64.p3" class="ltx_para"> <p class="ltx_p">We will continue to monitor Safari development.</p> </div> </dd> <dt id="S1.I1.i65" class="ltx_item ltx_newsitem"> <span class="bold">2011-07-01</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.2</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i65.p1" class="ltx_para"> <p class="ltx_p">A quick followup improves rendering in several places, particularly for InternetExplorer; the help pages were revised.</p> </div> </dd> <dt id="S1.I1.i66" class="ltx_item ltx_newsitem"> <span class="bold">2011-06-27</span> <span class="ltx_font_italic">DLMF Update; Version 1.0.1</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i66.p1" class="ltx_para"> <p class="ltx_p">We are proud to announce an update of the DLMF to version 1.0.1 which corrects a number of issues:</p> <ul id="S1.I1.i66.I1" class="ltx_itemize"> <li id="S1.I1.i66.I1.i1" class="ltx_item" style="list-style-type:none;"> <span class="ltx_tag ltx_tag_item"><span class="ltx_text ltx_font_bold">–</span></span> <div id="S1.I1.i66.I1.i1.p1" class="ltx_para"> <p class="ltx_p">A small number of errors and clarifications were made, see <a href="../.././errata/#V1.0.1" title="In Errata" class="ltx_ref"><span class="ltx_text ltx_ref_title">Version 1.0.1 (June 27, 2011)</span></a> for details;</p> </div> </li> <li id="S1.I1.i66.I1.i2" class="ltx_item" style="list-style-type:none;"> <span class="ltx_tag ltx_tag_item"><span class="ltx_text ltx_font_bold">–</span></span> <div id="S1.I1.i66.I1.i2.p1" class="ltx_para"> <p class="ltx_p">The listings of available software for special functions have been updated, see <a href="../.././software/" title="" class="ltx_ref"><span class="ltx_text ltx_ref_title">Software Index</span></a> for details</p> </div> </li> <li id="S1.I1.i66.I1.i3" class="ltx_item" style="list-style-type:none;"> <span class="ltx_tag ltx_tag_item"><span class="ltx_text ltx_font_bold">–</span></span> <div id="S1.I1.i66.I1.i3.p1" class="ltx_para"> <p class="ltx_p">Several improvements were made to the document conversion, layout and presentation.</p> </div> </li> </ul> <p class="ltx_p"><span class="ltx_text ltx_phantom"><span style="visibility:hidden"></span></span></p> </div> </dd> <dt id="S1.I1.i67" class="ltx_item ltx_newsitem"> <span class="bold">2011-03-21</span> <span class="ltx_font_italic">Firefox 3 users should upgrade</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i67.p1" class="ltx_para"> <p class="ltx_p">The just-released version 4 of Firefox fixes a disturbing MathML display bug. Previously, unless STIX fonts were installed, the surd for the square root of a fraction would not stretch enough to cover both the numerator and denominator. This caused, for example, the first square root within the parentheses in <a href="../.././8.11#E12" title="(8.11.12) ‣ §8.11(v) Other Approximations ‣ §8.11 Asymptotic Approximations and Expansions ‣ Incomplete Gamma Functions ‣ Chapter 8 Incomplete Gamma and Related Functions" class="ltx_ref"><span class="ltx_text ltx_ref_tag">8.11.12</span></a> to look like <span class="ltx_text ltx_font_typewriter">sqrt(pi)/2</span> rather than <span class="ltx_text ltx_font_typewriter">sqrt(pi/2)</span>. (See <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=454155" title="" class="ltx_ref external">Mozilla Bug 454155</a>).</p> </div> <div id="S1.I1.i67.p2" class="ltx_para"> <p class="ltx_p">Users of Firefox before version 4 should upgrade; when that is not possible, installing the STIX fonts is recommended (See <a href="../.././help/mathml#S3" title="In About MathML ‣ Need Help?" class="ltx_ref"><span class="ltx_text ltx_ref_title">Special fonts for MathML</span></a>).</p> </div> <div id="S1.I1.i67.p3" class="ltx_para"> <p class="ltx_p">[Incidentally, such rendering errors can easily be verified by comparing the displayed MathML to the source <span class="ltx_text ltx_TeX_logo" style="letter-spacing:-0.2em; margin-right:0.2em;">T<span class="ltx_text" style="position:relative; bottom:-0.2ex;font-variant:small-caps;font-size:120%;;">e</span>X</span> code or the png image of the formula which can be found under ‘Encoding’ in the ‘info box’ (hover over or click the <img src="../.././about/news/g1.png" id="S1.I1.i67.p3.g1" class="ltx_graphics ltx_img_square" width="24" height="24" alt="[Uncaptioned image]"> symbol next to every numbered formula)].</p> </div> </dd> <dt id="S1.I1.i68" class="ltx_item ltx_newsitem"> <span class="bold">2010-05-11</span> <span class="ltx_font_italic">Handbook published and DLMF goes public</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i68.p1" class="ltx_para"> <p class="ltx_p">We are proud to announce the public availability of the Digital Library of Mathematical Functions as well as the publishing of the <a href="http://www.cambridge.org/catalogue/catalogue.asp?isbn=9780521192255" title="" class="ltx_ref external">NIST Handbook of Mathematical Functions</a> by <a href="http://www.cambridge.org/" title="" class="ltx_ref external">Cambridge University Press</a>, effective this date.</p> </div> </dd> <dt id="S1.I1.i69" class="ltx_item ltx_newsitem"> <span class="bold">2010-05-06</span> <span class="ltx_font_italic">Firefox 3.6 slow on Windows <em class="ltx_emph ltx_font_italic">amended</em></span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i69.p1" class="ltx_para"> <p class="ltx_p">There appears to be a performance regression for Firefox versions 3.6.x when running under some versions of Windows, causing complex pages with large amounts of MathML — such as ours — to display very slowly. This problem is fixed in version 3.6.9 and later (See <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=564309" title="" class="ltx_ref external">Mozilla Bug 564309</a>).</p> </div> </dd> <dt id="S1.I1.i70" class="ltx_item ltx_newsitem"> <span class="bold">2009-03-19</span> <span class="ltx_font_italic">Cambridge University Press selected as publisher for the DLMF handbook version.</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i70.p1" class="ltx_para"> <p class="ltx_p">Cambridge University Press has been selected as publisher for the handbook version of the NIST Digital Library of Mathematical Functions (DLMF). This selection was made by evaluating and ranking several proposals that responded to the publicly announced request for proposals and were received by the deadline.</p> </div> <div id="S1.I1.i70.p2" class="ltx_para"> <p class="ltx_p">Final preparation of the handbook and Web versions is in process. The approximately simultaneous publication of the handbook and release of the Web site will occur in late 2009 or early 2010.</p> </div> </dd> <dt id="S1.I1.i71" class="ltx_item ltx_newsitem"> <span class="bold">2008-11-07</span> <span class="ltx_font_italic">Call for proposals to publish a printed version of the DLMF. (Updated 2008-11-21)</span> </dt> <dd class="ltx_item ltx_newsitem"> <div id="S1.I1.i71.p1" class="ltx_para"> <p class="ltx_p">The National Institute of Standards and Technology (NIST) seeks proposals from publishers interested in licensing the rights to produce and market a printed version of the NIST Digital Library of Mathematical Functions (DLMF). For complete information see <a href="../.././about/news/PublicationSolicitation.pdf" title="" class="ltx_ref">Public Announcement</a>.</p> </div> <div id="S1.I1.i71.p2" class="ltx_para"> <p class="ltx_p">Clarifications:</p> <dl id="S1.I1.i71.I1" class="ltx_description"> <dt id="S1.I1.i71.I1.ix1" class="ltx_item"><span class="ltx_tag ltx_tag_item"><span class="ltx_text ltx_font_bold">For the 3D graphics in the book, do they require 3D glasses?</span></span></dt> <dd class="ltx_item"> <div id="S1.I1.i71.I1.ix1.p1" class="ltx_para"> <p class="ltx_p">No. Although an interesting idea, there is no consideration of special viewing aids for the book version of the DLMF.</p> </div> </dd> <dt id="S1.I1.i71.I1.ix2" class="ltx_item"><span class="ltx_tag ltx_tag_item"><span class="ltx_text ltx_font_bold">If all the material in the book will be on the web, do you really want to add the expense of a DVD to the book?</span></span></dt> <dd class="ltx_item"> <div id="S1.I1.i71.I1.ix2.p1" class="ltx_para"> <p class="ltx_p">Please understand that the DVD (or other suitable media, such as CD) will contain only PDF files of the book version of the DLMF. There is no intention to reproduce the Web version for distribution with the book. The Web version will be accessible from the NIST DLMF website and, potentially, from NIST-authorized mirror sites.</p> </div> </dd> <dt id="S1.I1.i71.I1.ix3" class="ltx_item"><span class="ltx_tag ltx_tag_item"><span class="ltx_text ltx_font_bold">What is the total number of figures and the total number of color figures? Ballpark figures are fine.</span></span></dt> <dd class="ltx_item"> <div id="S1.I1.i71.I1.ix3.p1" class="ltx_para"> <p class="ltx_p">By a recent approximate count, there are 409 figures. Of these, 347 include color. The 3D surfaces with continuous color account for 140 of the color figures; 2D line graphs and diagrams with solid-colored lines account for the remainder.</p> </div> </dd> <dt id="S1.I1.i71.I1.ix4" class="ltx_item"><span class="ltx_tag ltx_tag_item"><span class="ltx_text ltx_font_bold">On page 5 of the Public Announcement, it’s stated, under Initial Production, that a proposal for a cover design is required and is to be based on the Sample Chapter Collection. The delivery date for the cover design is to be included in the Production Plan. Does this mean a draft design based on the Sample is required as part of the solicitation process?</span></span></dt> <dd class="ltx_item"> <div id="S1.I1.i71.I1.ix4.p1" class="ltx_para"> <p class="ltx_p">No. The purpose of the itemized lists on pages 5 and 6 is to describe the essential elements of the license agreement that will be drawn up by NIST and the selected licensee. The proposal for cover design is required after a licensee has been selected as a result of the solicitation process. Only the delivery date of the cover design proposal is required now. This date can be indicated, for example, as “xxx days after notification of selection by NIST”.</p> </div> </dd> </dl> </div> </dd> </dl> </div> </section> </article> </div> <div class="ltx_page_footer"> <div class="ltx_siblings"></div> <div class="ltx_footer_links ltx_centering"> <a href="../.././about/notices">© 2010–2025 NIST</a> / <a href="../.././about/notices#S2">Disclaimer</a> / <a href="mailto:DLMF-feedback@nist.gov">Feedback</a>; Version 1.2.4; Release date 2025-03-15.</div> <span id="pagesettings"></span> <div class="ltx_nist_logo"><a href="http://www.nist.gov/"><img src="../.././style/nistidc.png" width="500" alt="NIST"></a></div> <div class="ltx_nist_links ltx_align_right"> <a href="https://www.nist.gov/privacy-policy">Site Privacy</a> <a href="https://www.nist.gov/oism/accessibility">Accessibility</a> <a href="https://www.nist.gov/privacy">Privacy Program</a> <a href="https://www.nist.gov/oism/copyrights">Copyrights</a> <a href="https://www.commerce.gov/vulnerability-disclosure-policy">Vulnerability Disclosure</a> <a href="https://www.nist.gov/no-fear-act-policy">No Fear Act Policy</a> <a href="https://www.nist.gov/foia">FOIA</a> <a href="https://www.nist.gov/environmental-policy-statement">Environmental Policy</a> <a href="https://www.nist.gov/summary-report-scientific-integrity">Scientific Integrity</a> <a href="https://www.nist.gov/nist-information-quality-standards">Information Quality Standards</a> <a href="https://www.commerce.gov/">Commerce.gov</a> <a href="http://www.science.gov/">Science.gov</a> <a href="http://www.usa.gov/">USA.gov</a> </div> </div> </div> </body> </html>