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Paysages Mathématiques<p>"Sans un minimum d’ouverture à la beauté des choses, j’aurais été bien incapable de "fonctionner" comme mathématicien, même à un régime des plus modestes – et je doute que quiconque puisse faire travail utile en mathématiques, s’il ne reste vivant en lui, tant soit peu, ce sens de la beauté." – Alexandre Grothendieck (1928-2014)<br><a href="https://mathstodon.xyz/tags/citation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>citation</span></a> <a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a></p>
Paysages Mathématiques<p>"Without a minimum of openness to the beauty of things, I would have been quite unable to "function" as a mathematician, even at a modest level – and I doubt that anyone could do useful work in mathematics if that sense of beauty didn't remain alive in them, at least to some extent." – Alexandre Grothendieck (1928-2014)<br><a href="https://mathstodon.xyz/tags/quote" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>quote</span></a> <a href="https://mathstodon.xyz/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathematics</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a></p>
jnpn<p>generators for integrators</p><p><a href="https://unnamed.website/posts/haskelling-my-python/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">unnamed.website/posts/haskelli</span><span class="invisible">ng-my-python/</span></a></p><p><a href="https://mastodon.social/tags/python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>python</span></a> <a href="https://mastodon.social/tags/haskell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>haskell</span></a> <a href="https://mastodon.social/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a></p>
Madeline<p>I started this book club on the Fable app - join me there to discuss the math behind AI </p><p><a href="https://hachyderm.io/tags/AI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AI</span></a> <a href="https://hachyderm.io/tags/genAI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>genAI</span></a> <a href="https://hachyderm.io/tags/MachineLearning" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MachineLearning</span></a> <a href="https://hachyderm.io/tags/Math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Math</span></a> <a href="https://hachyderm.io/tags/Books" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Books</span></a> <a href="https://hachyderm.io/tags/Bookclub" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Bookclub</span></a> <a href="https://hachyderm.io/tags/Reading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Reading</span></a> </p><p><a href="https://fable.co/club/machines-learn-can-we-with-madeline-267661100558?invite=57080583-de32-4372-bdb4-4ae782eb249c" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">fable.co/club/machines-learn-c</span><span class="invisible">an-we-with-madeline-267661100558?invite=57080583-de32-4372-bdb4-4ae782eb249c</span></a></p>
Paysages Mathématiques<p>Theorem of the Day (April 21, 2025) : Sokal’s Theorem on Chromatic Roots<br>Source : Theorem of the Day / Robin Whitty<br>pdf : <a href="https://www.theoremoftheday.org/MathPhysics/Sokal/TotDSokal.pdf" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">theoremoftheday.org/MathPhysic</span><span class="invisible">s/Sokal/TotDSokal.pdf</span></a><br>notes : <a href="https://www.theoremoftheday.org/Resources/TheoremNotes.htm#169" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">theoremoftheday.org/Resources/</span><span class="invisible">TheoremNotes.htm#169</span></a> <br><a href="https://mathstodon.xyz/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathematics</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://mathstodon.xyz/tags/theorem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>theorem</span></a> <span class="h-card" translate="no"><a href="https://mathstodon.xyz/@Theoremoftheday" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>Theoremoftheday</span></a></span></p>
José A. Alonso<p>Non-circular trigonometric proofs of the pythagorean theorem in Lean4: A comparison. ~ Paul Pajo. <a href="https://www.researchgate.net/publication/390875819_Non-Circular_Trigonometric_Proofs_of_the_Pythagorean_Theorem_in_Lean4_A_Comparison" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">researchgate.net/publication/3</span><span class="invisible">90875819_Non-Circular_Trigonometric_Proofs_of_the_Pythagorean_Theorem_in_Lean4_A_Comparison</span></a> <a href="https://mathstodon.xyz/tags/ITP" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ITP</span></a> <a href="https://mathstodon.xyz/tags/LeanProver" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>LeanProver</span></a> <a href="https://mathstodon.xyz/tags/Math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Math</span></a></p>
Paysages Mathématiques<p>Source : Youtube / Numberphile</p><p><a href="https://www.youtube.com/watch?v=hKpa9ntjgeo" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/watch?v=hKpa9ntjge</span><span class="invisible">o</span></a><br><a href="https://mathstodon.xyz/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathematics</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/youtube" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>youtube</span></a></p>
José A. Alonso<p><a href="https://mathstodon.xyz/tags/Calculemus" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calculemus</span></a>: Demostraciones con Lean4 y con Isabelle/HOL de "f[s] \ f[t] ⊆ f[s \ t]​". <a href="https://jaalonso.github.io/calculemus/posts/2021/06/17-imagen_de_la_diferencia_de_conjuntos/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">jaalonso.github.io/calculemus/</span><span class="invisible">posts/2021/06/17-imagen_de_la_diferencia_de_conjuntos/</span></a> <a href="https://mathstodon.xyz/tags/LeanProver" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>LeanProver</span></a> <a href="https://mathstodon.xyz/tags/IsabelleHOL" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IsabelleHOL</span></a> <a href="https://mathstodon.xyz/tags/Math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Math</span></a></p>
José A. Alonso<p>Readings shared April 20, 2025. <a href="https://jaalonso.github.io/vestigium/posts/2025/04/20-readings_shared_04-20-25" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">jaalonso.github.io/vestigium/p</span><span class="invisible">osts/2025/04/20-readings_shared_04-20-25</span></a> <a href="https://mathstodon.xyz/tags/FunctionalProgramming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FunctionalProgramming</span></a> <a href="https://mathstodon.xyz/tags/Haskell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Haskell</span></a> <a href="https://mathstodon.xyz/tags/IsabelleHOL" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IsabelleHOL</span></a> <a href="https://mathstodon.xyz/tags/LeanProver" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>LeanProver</span></a> <a href="https://mathstodon.xyz/tags/Math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Math</span></a></p>
Paysages Mathématiques<p>21 avril 1652: <a href="https://mathstodon.xyz/tags/CeJourL%C3%A0" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CeJourLà</span></a> naissance de Michel Rolle (†8/11/1719), mathématicien français connu pour le théorème qui porte son nom (qu'il prouve pour des polynômes). Il fut longtemps opposé au calcul infinitésimal (en plein développement à l'époque).<br><a href="https://fr.wikipedia.org/wiki/Michel_Rolle" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">fr.wikipedia.org/wiki/Michel_R</span><span class="invisible">olle</span></a><br><a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a></p>
Paysages Mathématiques<p>21 avril 1951 : <a href="https://mathstodon.xyz/tags/CeJourL%C3%A0" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CeJourLà</span></a> naissance de Michael Freedman, mathématicien américain médaillé Fields en 1986 pour le développement de nouvelles méthodes qui lui ont permis de démontrer en dimension 4 la conjecture de Poincaré généralisée.<br><a href="https://fr.wikipedia.org/wiki/Michael_Freedman" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">fr.wikipedia.org/wiki/Michael_</span><span class="invisible">Freedman</span></a><br><a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a></p>
AIPT<p>Do WWE wrestlers always lose in their hometowns?</p><p>It was a common Vince McMahon critique, but does Triple H do any better?<br> <br><a href="https://aiptcomics.com/2025/04/20/wwe-lose-hometown-mcmahon-hhh-superstar/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">aiptcomics.com/2025/04/20/wwe-</span><span class="invisible">lose-hometown-mcmahon-hhh-superstar/</span></a></p><p><a href="https://mastodon.social/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://mastodon.social/tags/WWE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>WWE</span></a></p>
Matthew Conroy<p>Okay, one more breakfast bifurcation diagram, this one of f(x) = (sin(ax)+sin(a(x+Pi/4)+sin(a(x+Pi/4))/3.</p><p><a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://mathstodon.xyz/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathematics</span></a> <a href="https://mathstodon.xyz/tags/bifurcation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>bifurcation</span></a></p>
Hourly Hectoc Bot<p>Hi <span class="h-card" translate="no"><a href="https://mastodon.social/@firusvg" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>firusvg</span></a></span></p><p>Good solution.</p><p><a href="https://mastodon.seism0saurus.de/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://mastodon.seism0saurus.de/tags/mentalcalculator" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mentalcalculator</span></a> <a href="https://mastodon.seism0saurus.de/tags/hectoc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hectoc</span></a></p>
Hourly Hectoc Bot<p>Hello math fans,<br>Your hourly hectoc is here:</p><p>476679</p><p>The goal is to combine the 6 numbers to a total of 100. You can use the mathematical operations + - * / ^ and the parenthesis ( ). Numbers can be combined, but you have to use all 6 of them and are not allowed to change the order. See <a href="https://hectoc.seism0saurus.de" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">hectoc.seism0saurus.de</span><span class="invisible"></span></a> for an example. Please use CW "solution".</p><p>Have fun! Your hourly hectoc bot<br>by <span class="h-card" translate="no"><a href="https://infosec.exchange/@seism0saurus" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>seism0saurus</span></a></span></p><p><a href="https://mastodon.seism0saurus.de/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://mastodon.seism0saurus.de/tags/mentalcalculator" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mentalcalculator</span></a> <a href="https://mastodon.seism0saurus.de/tags/hectoc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hectoc</span></a></p>
Matthew Conroy<p>Breakfast is over, but what the hell: another breakfast bifurcation diagram, this time of f(x) = (sin(ax)+cos( (2pi-a)x))/2.</p><p><a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://mathstodon.xyz/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathematics</span></a> <a href="https://mathstodon.xyz/tags/bifurcation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>bifurcation</span></a></p>
EricRogerGarcia<p>L'odyssée des chiffres - un langage universel</p><p>VERS LA MATHEMATISATION DU MONDE</p><p>Le signe : ∞, le mètre, le kg, la seconde...</p><p>Ces chiffres sont utilisés presque partout par le hasard de l'histoire.</p><p>Les statistiques : cartes perforées (la mécanographie)... le langage binaire<br>les ordinateurs (les lampes, les transistors, les circuits intégrés)</p><p>... le smartphone</p><p>... se faire encoder sans même s'en rendre compte !</p><p>Prédire et orienter nos actions ?</p><p>3/3</p><p><a href="https://www.youtube.com/watch?v=EYxueo_qI-Q" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/watch?v=EYxueo_qI-</span><span class="invisible">Q</span></a></p><p><a href="https://ludosphere.fr/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://ludosphere.fr/tags/histoire" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>histoire</span></a></p>
EricRogerGarcia<p>L'odyssée des chiffres - un langage universel</p><p>L'INVENTION DU ZERO</p><p>Les signes + - x / =</p><p>L'utilisation du papier...</p><p>2/3</p><p><a href="https://www.youtube.com/watch?v=njcS61can7w" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/watch?v=njcS61can7</span><span class="invisible">w</span></a></p><p><a href="https://ludosphere.fr/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://ludosphere.fr/tags/histoire" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>histoire</span></a></p>
EricRogerGarcia<p>L'odyssée des chiffres - un langage universel</p><p>QUI A INVENTE LES CHIFFRES ?</p><p>1/3</p><p>(suite en réponse)</p><p><a href="https://www.youtube.com/watch?v=GksV0cQ5PNs" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/watch?v=GksV0cQ5PN</span><span class="invisible">s</span></a></p><p><a href="https://ludosphere.fr/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://ludosphere.fr/tags/histoire" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>histoire</span></a></p>
Hourly Hectoc Bot<p>Hi <span class="h-card" translate="no"><a href="https://mastodon.social/@firusvg" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>firusvg</span></a></span></p><p>Thank you for your answer.</p><p><a href="https://mastodon.seism0saurus.de/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://mastodon.seism0saurus.de/tags/mentalcalculator" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mentalcalculator</span></a> <a href="https://mastodon.seism0saurus.de/tags/hectoc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hectoc</span></a></p>