Pawb.Social Reports @transparency

20 posts19 participants4 posts today

Ben Lubar (any pronouns)<a href="https://mastodon.lubar.me/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> / <a href="https://mastodon.lubar.me/tags/geometry" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#geometry</a> / <a href="https://mastodon.lubar.me/tags/topology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#topology</a> question: let's say I have a collection of convex hulls representing a region of 3-space. each hull is either an unordered set of points representing the vertices of the hull or something simpler like a specific rotation and translation of a rectangular prism.I have another set of convex hulls for each of them, for example if a hull from the first set represents a wall, the hulls from its own set will be any shape that carves out space along the plane of that wall, for example a door.After removing any space where a hull overlaps with a hull from its own set, which may result in the hull becoming concave, all the hulls are combined, which may also result in a concave hull.Is there an upper bound on the minimum number of convex hulls required to represent the new combined concave hull?

Abie"With the possible exception of a few lost tribes somewhere in the Amazon or Andaman Islands, career mathematicians are the last true animists in this world." <a href="https://davidbessis.substack.com/p/the-real-mathematics-is-the-one-that" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://davidbessis.substack.com/p/the-real-mathematics-is-the-one-that</a> <a href="https://eldritch.cafe/tags/phisci" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#phisci</a> <a href="https://eldritch.cafe/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a>

SurfmasterSome people use math just like they use people, to lie, cheat or steal. But math itself never lies, or cheats, or steals from me, thats why I love math. <a href="https://mastodon.social/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://mastodon.social/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mathematics</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/calculus" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#calculus</a>

Albert P. Carpenter2 knots: trefoil and pentafoil composed of rhombicosidodecahedra that can represent points as well <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://mathstodon.xyz/tags/topology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#topology</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/geometrictopology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#geometrictopology</a> <a href="https://mathstodon.xyz/tags/knots" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#knots</a> <a href="https://mathstodon.xyz/tags/knottheory" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#knottheory</a>

Mina Fediverse Commander<a href="https://berlin.social/tags/Math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Math</a>⁣ematicians never run out of <a href="https://berlin.social/tags/chocolate" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#chocolate</a>

Gnome KatDoes anyone know of a good <a href="https://tech.lgbt/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://tech.lgbt/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#maths</a> discord that is good for amature math people?Most the math spaces I see are full of more hardcore math people and it can be intimidating and also I have found the spaces to not be super welcoming towards people who are on the more amature side.

Fractal KittyI have posted the 238th Carnival of Mathematics!<a href="https://www.fractalkitty.com/238th-carnival-of-mathematic/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.fractalkitty.com/238th-carnival-of-mathematic/</a>If I missed something please let me know. There is an extremely slow bit of javascript for untouchable numbers that hopefully won't make the post untouchable. Thank you <a href="https://mathstodon.xyz/@aperiodical" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@aperiodical</a> for organizing this.This month we have posts from <a href="https://mathstodon.xyz/@mjd" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@mjd</a> Peter Cameron, <a href="https://mathstodon.xyz/@two_star" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@two_star</a>, <a href="https://mathstodon.xyz/@j2kun" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@j2kun</a>, Brian Clegg, <a href="https://fediscience.org/@fortnow" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@fortnow</a> <a href="https://mathstodon.xyz/@KarenCampe" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@KarenCampe</a>, Amédée d'Aboville, Ed Vogel, <a href="https://mathstodon.xyz/@standupmaths" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@standupmaths</a> There was also an amazing amount of math and art being shared on blueSky with <a href="https://mathstodon.xyz/@Ayliean" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@Ayliean</a> 's math art March prompts<a href="https://mathstodon.xyz/tags/carnivalOfMathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#carnivalOfMathematics</a> <a href="https://mathstodon.xyz/tags/indieweb" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#indieweb</a> <a href="https://mathstodon.xyz/tags/blogCarnival" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#blogCarnival</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/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#maths</a>

NiceMicro<a href="https://fosstodon.org/@25admins" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@25admins</a> I generally like to point out when people incorrectly call something that is "big" as "exponential".In today's episode <a href="https://fosstodon.org/@jimsalter" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@jimsalter</a> and <a href="https://mastodon.social/@allanjude" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@allanjude</a> almost called technical debt "exponential", but then they decided to say "compounding", which is funny, because "compound interest" is the type of change that IS exponential 😂 Exponential growth is when same interval -> same ratio of change. Exponential is not "big". A constant 0.1% interest rate is also exponential.<a href="https://fosstodon.org/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#science</a> <a href="https://fosstodon.org/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a>

⚯ Michel de Cryptadamus ⚯This is incredible. The White House sent out the Deputy Press Secretary Kush Desai to protest that the equation for tariffs on a country was definitely *not* just calculated as just (trade_deficit / imports) but instead calculated as [insert greek letter arithmetic that looks complicated].What <a href="https://universeodon.com/tags/KushDesai" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#KushDesai</a> did not realize is that the values chosen for the greek letters in the equation he cited in the paper he cited it from make the formula reduce to… trade_deficit / imports"It's essentially <a href="https://universeodon.com/tags/CriticalTradeTheory" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CriticalTradeTheory</a>. Any trade imbalance between two countries is de facto evidence of systemic unfair trade practices."<a href="https://x.com/KushDesai47/status/1907617412142317680" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://x.com/KushDesai47/status/1907617412142317680</a><a href="https://universeodon.com/tags/Tariffs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Tariffs</a> <a href="https://universeodon.com/tags/MAGA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MAGA</a> <a href="https://universeodon.com/tags/Trump" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Trump</a> <a href="https://universeodon.com/tags/uspol" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#uspol</a> <a href="https://universeodon.com/tags/eupol" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#eupol</a> <a href="https://universeodon.com/tags/asia" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#asia</a> <a href="https://universeodon.com/tags/China" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#China</a> <a href="https://universeodon.com/tags/PRC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PRC</a> <a href="https://universeodon.com/tags/Math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Math</a> <a href="https://universeodon.com/tags/Mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Mathematics</a> <a href="https://universeodon.com/tags/economics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#economics</a> <a href="https://universeodon.com/tags/economy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#economy</a> <a href="https://universeodon.com/tags/recession" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#recession</a> <a href="https://universeodon.com/tags/corruption" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#corruption</a>

Simon Bosley99% of the whole? So 99% then...<a href="https://mastodon.social/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://mastodon.social/tags/mobile" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mobile</a> <a href="https://mastodon.social/tags/network" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#network</a>

Hourly Hectoc BotHi <a href="https://mastodon.moule.world/@MOULE" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@MOULE</a>That is correct.<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 everyone, A new hectoc for you:791888The 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>

Valeriy M., PhD, MBA, CQF<a href="https://sigmoid.social/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a>

Peter DrakeI plotted a graph with some very small numbers. The scale of the vertical axis is listed as "1e-5+5.802e-1". What does this mean? I understand scientific notation, but not a sum of two numbers in this context. Where do the invisible parentheses go?<a href="https://mstdn.social/tags/python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#python</a> <a href="https://mstdn.social/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://mstdn.social/tags/matplotlib" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#matplotlib</a>

Ça Suffit.Some math jokes again 😇 <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> <a href="https://mastodon.social/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mathematics</a>

science-bites.bsky.socialOrder of operations in Math <a class="hashtag" href="https://bsky.app/search?q=%23iTeachMath" rel="nofollow noopener noreferrer" target="_blank">#iTeachMath</a> <a class="hashtag" href="https://bsky.app/search?q=%23Math" rel="nofollow noopener noreferrer" target="_blank">#Math</a>

0x10fA formula for three-input exclusive OR using reverse Polish notation and only the NAND operator (spaces added for clarity): C C AAB⊼⊼ BAB⊼⊼ ⊼ ⊼ ⊼ AAB⊼⊼ BAB⊼⊼ ⊼ C AAB⊼⊼ BAB⊼⊼ ⊼ ⊼ ⊼ ⊼ Symbols: - A, B, C: push that input bit to stack. - ⊼: pull two bits from stack; if they're both ones, push 0, otherwise push 1. After the formula has been evaluated, the stack contains one bit: 1 if 1 or 3 of A, B and C were ones, otherwise 0. <a href="https://tech.lgbt/tags/programming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#programming</a> <a href="https://tech.lgbt/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://tech.lgbt/tags/rpn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#rpn</a>

yet another phosThis is a really fun, interesting and approachable math series, can highly recommend <a href="https://not.an.evilcyberhacker.net/tags/math" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://www.youtube.com/playlist?list=PL8nlk4F6cN8aBuxrE4bKfjcAmcfkt58R6" rel="nofollow noopener noreferrer" target="_blank">https://www.youtube.com/playlist?list=PL8nlk4F6cN8aBuxrE4bKfjcAmcfkt58R6</a>

2somethingThe set of all sets that are not big enough to trigger Russell's Paradox. Okay that sounds like a joke, but I have a clear memory of my algebra professor in undergrad saying "If you have a large category, you can always shrink it to a small category that includes all the objects you care about." Unless you're a foundations creature, in which case the objects you care about might include sets or categories which are big enough to cause trouble. <a href="https://transfem.social/tags/SetTheory" rel="nofollow noopener noreferrer" target="_blank">#SetTheory</a> <a href="https://transfem.social/tags/CategoryTheory" rel="nofollow noopener noreferrer" target="_blank">#CategoryTheory</a> <a href="https://transfem.social/tags/Math" rel="nofollow noopener noreferrer" target="_blank">#Math</a>

Potato ImaginatorWatch at: <a href="https://youtu.be/6awIPUFCHPg" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://youtu.be/6awIPUFCHPg</a> Play at: <a href="https://tic80.com/play?cart=4225" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://tic80.com/play?cart=4225</a><a href="https://peoplemaking.games/tags/tic80" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#tic80</a> <a href="https://peoplemaking.games/tags/youtube" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#youtube</a> <a href="https://peoplemaking.games/tags/youtuber" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#youtuber</a> <a href="https://peoplemaking.games/tags/youtubechannel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#youtubechannel</a> <a href="https://peoplemaking.games/tags/pixel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pixel</a> <a href="https://peoplemaking.games/tags/pixelart" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pixelart</a> <a href="https://peoplemaking.games/tags/pixelanimation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pixelanimation</a> <a href="https://peoplemaking.games/tags/animation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#animation</a> <a href="https://peoplemaking.games/tags/animation2d" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#animation2d</a> <a href="https://peoplemaking.games/tags/animated" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#animated</a> <a href="https://peoplemaking.games/tags/animatedart" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#animatedart</a> <a href="https://peoplemaking.games/tags/code" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#code</a> <a href="https://peoplemaking.games/tags/coder" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#coder</a> <a href="https://peoplemaking.games/tags/coding" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#coding</a> <a href="https://peoplemaking.games/tags/program" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#program</a> <a href="https://peoplemaking.games/tags/programming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#programming</a> <a href="https://peoplemaking.games/tags/scripting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#scripting</a> <a href="https://peoplemaking.games/tags/circle" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#circle</a> <a href="https://peoplemaking.games/tags/circles" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#circles</a> <a href="https://peoplemaking.games/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://peoplemaking.games/tags/geometry" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#geometry</a> <a href="https://peoplemaking.games/tags/geometric" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#geometric</a> <a href="https://peoplemaking.games/tags/geometricart" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#geometricart</a> <a href="https://peoplemaking.games/tags/shape" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shape</a> <a href="https://peoplemaking.games/tags/2d" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#2d</a> <a href="https://peoplemaking.games/tags/2danimation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#2danimation</a> <a href="https://peoplemaking.games/tags/2danimator" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#2danimator</a> <a href="https://peoplemaking.games/tags/8bit" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#8bit</a> <a href="https://peoplemaking.games/tags/retro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#retro</a>

Recent searches

Search options

Administered by:

Server stats:

#math