NerdCulture

114 posts81 participants12 posts today

The Animal and the MachineTariff <a href="https://mathstodon.xyz/tags/Math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Math</a> Trumps formula says 10.25% inflation. His own numbers. <a href="https://youtu.be/j04IAbWCszg" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://youtu.be/j04IAbWCszg</a>

Paysages Mathématiques"How do we know that a particular set of postulates, say those of elementary algebra, will never lead to a contradiction? The answer to this disposes once and for all of the hoary myth of absolute truth for the conclusions of pure mathematics. We do not know [...] that a particular set of postulates is self-consistent and that it will never lead to a contradiction." – Eric Temple Bell (1883-1960) <a href="https://mathstodon.xyz/tags/quote" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#quote</a> <a href="https://mathstodon.xyz/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mathematics</a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#maths</a>

doctorambientAs a mathematician, I am upset by *anyone* who starts by setting ε < 0.<a href="https://mastodon.social/tags/uspol" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#uspol</a> <a href="https://mastodon.social/tags/bullshit" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bullshit</a> <a href="https://mastodon.social/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://mastodon.social/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#maths</a> <a href="https://mastodon.social/tags/fuckingrepublicans" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fuckingrepublicans</a>

Hourly Hectoc BotHi <a href="https://infosec.exchange/@seism0saurus" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@seism0saurus</a>Good work.<a href="https://mastodon.seism0saurus.de/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://mastodon.seism0saurus.de/tags/mentalcalculator" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mentalcalculator</a> <a href="https://mastodon.seism0saurus.de/tags/hectoc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#hectoc</a>

Hourly Hectoc BotHello, Your hourly hectoc is here:389743The 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">https://hectoc.seism0saurus.de</a> for an example. Please use CW "solution".Have fun! Your hourly hectoc bot by <a href="https://infosec.exchange/@seism0saurus" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@seism0saurus</a><a href="https://mastodon.seism0saurus.de/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://mastodon.seism0saurus.de/tags/mentalcalculator" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mentalcalculator</a> <a href="https://mastodon.seism0saurus.de/tags/hectoc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#hectoc</a>

The Kid Should See This 🌈🪐✨Bach's first prelude performed with boomwhackers by Les Objets Volants! 🎹🌈These performers approach juggling through theater, visual arts, and <a href="https://universeodon.com/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a>—creating what they call "particle <a href="https://universeodon.com/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physics</a> at human scale." Individual movements combine into complex patterns, much like atoms forming matter.👉 Learn more: <a href="https://thekidshouldseethis.com/post/boomwhacker-bach-prelude-n1-aux-tubes-musicaux" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://thekidshouldseethis.com/post/boomwhacker-bach-prelude-n1-aux-tubes-musicaux</a><a href="https://universeodon.com/tags/Music" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Music</a> <a href="https://universeodon.com/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Physics</a> <a href="https://universeodon.com/tags/STEAM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#STEAM</a> <a href="https://universeodon.com/tags/Science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Science</a> <a href="https://universeodon.com/tags/TKSST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#TKSST</a> <a href="https://universeodon.com/tags/France" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#France</a>

Prof. Bholanath DuttaCan you SOLVE this? <a href="https://mastodon.social/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a>

James House-Lantto (He/Him)<a href="https://www.youtube.com/watch?v=xfOpjpC-yWU" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.youtube.com/watch?v=xfOpjpC-yWU</a>The math nerd in me loves this idea. Precision machined metal dice, precisely balanced, the numbers are laser marked on the die, to not affect the weight distribution on different sides.The number layout has been optimized so that the sum of all numbers on any given half of the D20, to be as close to every other half sum on the D20 as possible. It also does this with every vertex sum (groups of five adjacent numbers).<a href="https://www.kickstarter.com/projects/flyinghorseduck/metal-dice-sets" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.kickstarter.com/projects/flyinghorseduck/metal-dice-sets</a><a href="https://mastodon.social/tags/Dice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Dice</a> <a href="https://mastodon.social/tags/TTRPG" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#TTRPG</a> <a href="https://mastodon.social/tags/Math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Math</a>

Prof. Bholanath DuttaCan you SOLVE this? <a href="https://mastodon.social/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> 👉🙋

Bhavani Shankar 💭Here's a fun puzzle: Find a positive number that grows exactly 3/2 times when it's first digit becomes the last. For example, the first digit becoming the last would turn 1234 into 2341. But 2341 / 1234 = 1.89 but not 3/2. Try it out and post your solution. I posted my thoughts and answer in replies. <a class="hashtag" href="https://fe.disroot.org/tag/math" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a class="hashtag" href="https://fe.disroot.org/tag/coding" rel="nofollow noopener noreferrer" target="_blank">#coding</a> <a class="hashtag" href="https://fe.disroot.org/tag/puzzle" rel="nofollow noopener noreferrer" target="_blank">#puzzle</a>

Paysages MathématiquesTheorem of the Day (April 8, 2025) : The Second Isomorphism Theorem Source : Theorem of the Day / Robin Whitty pdf : <a href="https://www.theoremoftheday.org/GroupTheory/SecondIsomorphism/TotDIsomorphism2.pdf" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.theoremoftheday.org/GroupTheory/SecondIsomorphism/TotDIsomorphism2.pdf</a> notes : <a href="https://www.theoremoftheday.org/Resources/TheoremNotes.htm#35" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.theoremoftheday.org/Resources/TheoremNotes.htm#35</a> <a href="https://mathstodon.xyz/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mathematics</a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#maths</a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://mathstodon.xyz/tags/theorem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#theorem</a> <a href="https://mathstodon.xyz/@Theoremoftheday" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@Theoremoftheday</a>

Rémi EismannOne day, one decomposition A230091: Numbers of the form k + wt(k) for exactly two distinct k, where wt(k) = A000120(k) is the binary weight of k3D graph, threejs - webGL ➡️ <a href="https://decompwlj.com/3Dgraph/A230091.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://decompwlj.com/3Dgraph/A230091.html</a> 2D graph, first 500 terms ➡️ <a href="https://decompwlj.com/2Dgraph500terms/A230091.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://decompwlj.com/2Dgraph500terms/A230091.html</a><a href="https://mathstodon.xyz/tags/decompwlj" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#decompwlj</a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://mathstodon.xyz/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mathematics</a> <a href="https://mathstodon.xyz/tags/sequence" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sequence</a> <a href="https://mathstodon.xyz/tags/OEIS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OEIS</a> <a href="https://mathstodon.xyz/tags/javascript" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#javascript</a> <a href="https://mathstodon.xyz/tags/php" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#php</a> <a href="https://mathstodon.xyz/tags/3D" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#3D</a> <a href="https://mathstodon.xyz/tags/numbers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#numbers</a> <a href="https://mathstodon.xyz/tags/binary" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#binary</a> <a href="https://mathstodon.xyz/tags/weight" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#weight</a> <a href="https://mathstodon.xyz/tags/graph" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#graph</a> <a href="https://mathstodon.xyz/tags/threejs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#threejs</a> <a href="https://mathstodon.xyz/tags/webGL" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#webGL</a>

Karl Voit :emacs: :orgmode:<a href="https://graz.social/tags/Math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Math</a> is really overrated, says <a href="https://graz.social/tags/Batman" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Batman</a>! <a href="https://www.smbc-comics.com/comic/battriangulation" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.smbc-comics.com/comic/battriangulation</a><a href="https://graz.social/tags/SMBC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SMBC</a> <a href="https://graz.social/tags/Comics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Comics</a> <a href="https://graz.social/tags/fun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fun</a>

Chris PurcellNo one answered my question the other day but I'm sure someone here will know the answer or at least be interested so I'll try again with some hashtags: <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://mathstodon.xyz/tags/geometry" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#geometry</a> <a href="https://mathstodon.xyz/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mathematics</a> If I know the sin and/or cos of an angle, what can I deduce about the "rationality" of the angle. Are there necessary or sufficient conditions for the angle to be 𝑞π for some rational 𝑞 ?To put it another way, do rational angles have "simple" sin and/or cos values?

doboprobodyne<a href="https://mastodon.social/@glyph" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@glyph</a> I hear you.My favourite (perhaps less jarring?) example is when a court declares they have found someone guilty, and that their threshold of guilt is "on balance of odds".I look at the lawyers and the witnesses and realise that none of them has studied actuarial or probability mathematics. I wouldn't even trust them to understand a bet on the horses. For a scientist to watch them is like observing a cargo cult. Worse, I am sure, is for a scientist to find themselves on the receiving end of such a court.I would offer the meagre consolation that you can see the feedback loops that drive them to behave so, where they think themselves to have free will.<a href="https://mathstodon.xyz/tags/cybernetics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cybernetics</a> <a href="https://mathstodon.xyz/tags/actuarial" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#actuarial</a> <a href="https://mathstodon.xyz/tags/odds" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#odds</a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#maths</a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://mathstodon.xyz/tags/statistics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#statistics</a> <a href="https://mathstodon.xyz/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#science</a> <a href="https://mathstodon.xyz/tags/scientificInquiry" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#scientificInquiry</a> <a href="https://mathstodon.xyz/tags/systemsArchitecture" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#systemsArchitecture</a> <a href="https://mathstodon.xyz/tags/justice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#justice</a> <a href="https://mathstodon.xyz/tags/law" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#law</a> <a href="https://mathstodon.xyz/tags/policing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#policing</a> <a href="https://mathstodon.xyz/tags/cargoCult" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cargoCult</a>

burninghatodonLa POLYRYTHMIE et les MATHÉMATIQUES <a href="https://www.youtube.com/watch?v=82_lhW1-Zvc" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.youtube.com/watch?v=82_lhW1-Zvc</a> de la fascinante chaîne Mathémusique <a href="https://mastodon.social/tags/music" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#music</a> <a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#science</a> <a href="https://mastodon.social/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a>

Game Dev RomaniaAlgebra Drive! Umple naveta cu extratereștri! Fiecare decizie contează, iar timpul fuge! Un joc de matematică rapid și antrenant făcut pentru <a href="https://mastodon.social/tags/GameDevRomania" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#GameDevRomania</a> Jam! <a href="https://ypsilon.itch.io/algebra-drive" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://ypsilon.itch.io/algebra-drive</a> <a href="https://mastodon.social/tags/gamejam" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#gamejam</a> <a href="https://mastodon.social/tags/gamedev" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#gamedev</a> <a href="https://mastodon.social/tags/indiegame" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#indiegame</a> <a href="https://mastodon.social/tags/algebra" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#algebra</a> <a href="https://mastodon.social/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a>

okanogen VerminEnemyFromWithinOn the plus side, every day the market drops by 10%, it's less in absolute terms than the day before. <a href="https://mastodon.social/tags/Winning" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Winning</a> <a href="https://mastodon.social/tags/MAGA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MAGA</a> <a href="https://mastodon.social/tags/Math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Math</a>

Artem ChernikovI'm excited to join the editorial board of a new diamond open access journal in mathematical logic:ZML: Zeitschrift für Mathematische Logik und Grundlagen der Mathematik <a href="https://zml.international/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://zml.international/</a>The open letter of the editors of ZML can be found online on the webpage.More on the collective action and an editorial board walk-out that led to the creation of this new journal: <a href="https://blog.tib.eu/2025/04/07/mlq-walk-out/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://blog.tib.eu/2025/04/07/mlq-walk-out/</a><a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://mathstodon.xyz/tags/openacess" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#openacess</a> <a href="https://mathstodon.xyz/tags/logic" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#logic</a>

Paysages Mathématiques"One of the chief ends served by mathematics, when rightly taught, is to awaken the learner's belief in reason, his confidence in the truth of what has been demonstrated, and in the value of demonstration." – Bertrand Russell (1872-1970) <a href="https://mathstodon.xyz/tags/quote" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#quote</a> <a href="https://mathstodon.xyz/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mathematics</a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#maths</a>

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