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<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Jacques Philippe Marie Binet</span></h1>
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<p><b>Jacques Philippe Marie Binet</b> (* <a href="2._Februar" title="2. Februar">2. Februar</a> <a href="1786" title="1786">1786</a> in <a href="Rennes" title="Rennes">Rennes</a>; † <a href="12._Mai" title="12. Mai">12. Mai</a> <a href="1856" title="1856">1856</a> in <a href="Paris" title="Paris">Paris</a>) war ein <a href="Franzose" class="mw-redirect" title="Franzose">französischer</a> <a href="Mathematiker" title="Mathematiker">Mathematiker</a>.
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<div class="mw-heading mw-heading2"><h2 id="Leben">Leben</h2></div>
<p>Binet war vom 22. November 1804 bis zu seiner Graduierung 1806 an der <a href="%C3%89cole_polytechnique" title="École polytechnique">École polytechnique</a> und arbeitete danach an der <a href="%C3%89cole_Nationale_des_Ponts_et_Chauss%C3%A9es" class="mw-redirect" title="École Nationale des Ponts et Chaussées">École Nationale des Ponts et Chaussées</a>. Ab 1807 lehrte er an der École Polytechnique und wurde 1823 Professor für <a href="Astronomie" title="Astronomie">Astronomie</a> am <a href="Coll%C3%A8ge_de_France" title="Collège de France">Collège de France</a>. 1843 wurde er zum Mitglied der <a href="Acad%C3%A9mie_des_sciences" title="Académie des sciences">Académie des sciences</a> gewählt. Seit 1821 war er Mitglied der <a href="Ehrenlegion" title="Ehrenlegion">Ehrenlegion</a> (Ritter).
</p><p>Grundlagen der <a href="Matrix_(Mathematik)" title="Matrix (Mathematik)">Matrixtheorie</a> werden Binet zugesagt, etwa die Definition der <a href="Matrizenmultiplikation" title="Matrizenmultiplikation">Matrizenmultiplikation</a>.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Nach ihm sind der <a href="Satz_von_Binet-Cauchy" title="Satz von Binet-Cauchy">Satz von Binet-Cauchy</a> benannt sowie eine nicht-rekursive Formel für das n-te Glied <span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle u_{n}}">
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<annotation encoding="application/x-tex">{\displaystyle u_{n}}</annotation>
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</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/6c7339b0b08d3045d72ddbacf4a3e50d24640c2d.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.548ex; height:2.009ex;" alt="{\displaystyle u_{n}}" loading="lazy"></span> der <a href="Fibonacci-Folge" title="Fibonacci-Folge">Fibonacci-Folge</a>, die er 1843 fand:
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<dl><dd><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle u_{n}={\frac {1}{\sqrt {5}}}\left(\left({\frac {1+{\sqrt {5}}}{2}}\right)^{n}-\left({\frac {1-{\sqrt {5}}}{2}}\right)^{n}\right)}">
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<annotation encoding="application/x-tex">{\displaystyle u_{n}={\frac {1}{\sqrt {5}}}\left(\left({\frac {1+{\sqrt {5}}}{2}}\right)^{n}-\left({\frac {1-{\sqrt {5}}}{2}}\right)^{n}\right)}</annotation>
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</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/d56d239c2df11e0d6f5cf3ff423f82cd7884a02b.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -3.171ex; width:41.644ex; height:7.509ex;" alt="{\displaystyle u_{n}={\frac {1}{\sqrt {5}}}\left(\left({\frac {1+{\sqrt {5}}}{2}}\right)^{n}-\left({\frac {1-{\sqrt {5}}}{2}}\right)^{n}\right)}" loading="lazy"></span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</dd></dl>
<p>Diese Formel war zuvor jedoch bereits <a href="Leonhard_Euler" title="Leonhard Euler">Leonhard Euler</a>, <a href="Daniel_Bernoulli" title="Daniel Bernoulli">Daniel Bernoulli</a> und <a href="Abraham_de_Moivre" title="Abraham de Moivre">Abraham de Moivre</a> bekannt.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
</p><p>Nach Binet ist die Summe zweier <a href="Haupttr%C3%A4gheitsmoment" class="mw-redirect" title="Hauptträgheitsmoment">Hauptträgheitsmomente</a> eines Körpers immer größer als dessen weiteren Trägheitsmomente. Ferner sind alle Hauptträgheitsmomente immer Summen zweier <i>Binet’scher Trägheitsmomente</i>.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>
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<div class="mw-heading mw-heading2"><h2 id="Weblinks">Weblinks</h2></div>
<div class="sisterproject" style="margin:0.1em 0 0 0;"><div class="noresize noviewer" style="display:inline-block; line-height:10px; min-width:1.6em; text-align:center;" aria-hidden="true" role="presentation"><span class="mw-default-size" typeof="mw:File"><span title="Commons"></span></span></div><b><span class=""><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Jacques_Philippe_Marie_Binet?uselang=de"><span lang="en">Commons</span>: Jacques Philippe Marie Binet</a></span></b>&nbsp;– Sammlung von Bildern, Videos und Audiodateien</div>
<ul><li>John J. O’Connor, <a href="Edmund_Robertson" title="Edmund Robertson">Edmund F. Robertson</a>:&nbsp;<a rel="nofollow" class="external text" href="https://mathshistory.st-andrews.ac.uk/Biographies/Binet/"><i>Jacques Philippe Marie Binet.</i></a> In: <span lang="en"><i><a href="MacTutor_History_of_Mathematics_archive" title="MacTutor History of Mathematics archive">MacTutor History of Mathematics archive</a></i></span>&nbsp;(englisch).</li></ul>
<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>
<ol class="references">
<li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"><span class="cite"><a rel="nofollow" class="external text" href="https://mathshistory.st-andrews.ac.uk/Biographies/Binet/"><i>Jacques Philippe Marie Binet.</i></a> In: <i>MacTutor History of Mathematics archive.</i> School of Mathematics and Statistics, University of St Andrews, 2015,<span class="Abrufdatum"> abgerufen am 3.&nbsp;Dezember 2023</span> (englisch).</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&amp;rfr_id=info%3Asid%2Fde.wikipedia.org%3AJacques+Philippe+Marie+Binet&amp;rft.title=Jacques+Philippe+Marie+Binet&amp;rft.description=Jacques+Philippe+Marie+Binet&amp;rft.identifier=https%3A%2F%2Fmathshistory.st-andrews.ac.uk%2FBiographies%2FBinet%2F&amp;rft.publisher=School+of+Mathematics+and+Statistics%2C+University+of+St+Andrews&amp;rft.date=2015&amp;rft.language=en">&nbsp;</span></span>
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<li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><span class="cite">Eric W. Weisstein: <a rel="nofollow" class="external text" href="https://mathworld.wolfram.com/BinetsFibonacciNumberFormula.html"><i>Binet's Fibonacci Number Formula.</i></a> MathWorld,<span class="Abrufdatum"> abgerufen am 10.&nbsp;Januar 2011</span>.</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&amp;rfr_id=info%3Asid%2Fde.wikipedia.org%3AJacques+Philippe+Marie+Binet&amp;rft.title=Binet%27s+Fibonacci+Number+Formula&amp;rft.description=Binet%27s+Fibonacci+Number+Formula&amp;rft.identifier=https%3A%2F%2Fmathworld.wolfram.com%2FBinetsFibonacciNumberFormula.html&amp;rft.creator=Eric+W.+Weisstein&amp;rft.publisher=MathWorld">&nbsp;</span></span>
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<li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text">Richard Gammel: <cite style="font-style:italic">Der Kreisel</cite>. Seine Theorie und seine Anwendungen. 2. Auflage. <span style="white-space:nowrap">Band<span style="display:inline-block;width:.2em">&nbsp;</span>2</span>. Springer, Berlin, Göttingen, Heidelberg 1950, <a href="Deutsche_Nationalbibliothek" title="Deutsche Nationalbibliothek">DNB</a>&nbsp;<a rel="nofollow" class="external text" href="https://portal.dnb.de/opac.htm?referrer=Wikipedia&amp;method=simpleSearch&amp;cqlMode=true&amp;query=idn%3D451641280">451641280</a>, <span style="white-space:nowrap">S.<span style="display:inline-block;width:.2em">&nbsp;</span>26–29</span>.<span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rfr_id=info:sid/de.wikipedia.org:Jacques+Philippe+Marie+Binet&amp;rft.au=Richard+Gammel&amp;rft.btitle=Der+Kreisel&amp;rft.date=1950&amp;rft.edition=2.+Auflage&amp;rft.genre=book&amp;rft.pages=26-29&amp;rft.place=Berlin%2C+G%C3%B6ttingen%2C+Heidelberg&amp;rft.pub=Springer&amp;rft.volume=2" style="display:none">&nbsp;</span></span>
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