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#piday

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Damian Yerrick<p>If you can draw a circle in pixel art, you can prove π = 4. Happy Pi Day!</p><p><a href="https://peoplemaking.games/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a> <a href="https://peoplemaking.games/tags/AprilFoolsDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AprilFoolsDay</span></a> <a href="https://peoplemaking.games/tags/AprilFools" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AprilFools</span></a> <a href="https://peoplemaking.games/tags/AprilFoolsDay2025" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AprilFoolsDay2025</span></a> <a href="https://peoplemaking.games/tags/PixelArt" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PixelArt</span></a></p>
Regdar and the Fighters<p>I'm late, but my <a href="https://musician.social/tags/piday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>piday</span></a> hot take is that pi actually has only about 70 digits.</p><p>That's the maximum number of significant digits you can have when doing geometry to planck length precision at size of the universe scale.</p><p>Any attempt to include more digits is just intentionally introducing inaccuracy to your results</p>
David Bisset<p>Pi Alignment Chart</p><p><a href="https://phpc.social/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a> <a href="https://phpc.social/tags/Pi" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Pi</span></a> <a href="https://phpc.social/tags/Math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Math</span></a></p>
The FreeDOS Project<p>If you're curious about last week's <a href="https://fosstodon.org/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a> article that used a FreeDOS program to "measure" π by counting pixels, here's a follow-up. </p><p>It's about how to write an academic journal article in groff— but really, it was an excuse to explain why the method gives π=2.828 🤓</p><p><a href="https://technicallywewrite.com/2025/03/18/academic" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">technicallywewrite.com/2025/03</span><span class="invisible">/18/academic</span></a></p><p>Short version: it measures a square inside the circle, so the best you can get is 8cos(π/4) or π=2✓2</p><p>*Could be explained better, but the diagrams look really nice! 🤣</p>
jack68k<p>Another great <a href="https://mastodon.social/tags/GlobalTalk" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GlobalTalk</span></a> print from <span class="h-card" translate="no"><a href="https://hachyderm.io/@theirongiant" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>theirongiant</span></a></span>, this time to celebrate <a href="https://mastodon.social/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a>.</p><p>Even though the ImageWriter is only 144 DPI, the look of a vintage color print is undeniably charming! Love the pixellated print to my modern laser, too.</p><p><a href="https://mastodon.social/tags/MARCHintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MARCHintosh</span></a></p>
Christian Erlinger<p>Too late to the party: <a href="https://openbiblio.social/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a> <a href="https://openbiblio.social/tags/marmorkuchen" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>marmorkuchen</span></a></p>
Kevin Severud :donor:<p>“[Pi Day] was founded [in 1988] by physicist Larry Shaw, who at the time was on staff at the Exploratorium, a science museum in San Francisco. It began at an Exploratorium staff retreat in Monterey, California, which Shaw and his colleagues took to mark three years since the death of the museum's founder, Frank Oppenheimer, the brother of famed Manhattan Project leader J. Robert Oppenheimer.”<br><a href="https://infosec.exchange/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a> <a href="https://infosec.exchange/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://flip.it/IF.7Au" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">flip.it/IF.7Au</span><span class="invisible"></span></a></p>
Adam Coffman<p><span class="h-card" translate="no"><a href="https://mathstodon.xyz/@sc_griffith" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>sc_griffith</span></a></span> math 🍕 selfie for π Day<br>More <a href="https://mathstodon.xyz/tags/PiDay2025" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay2025</span></a> photos: <a href="https://www.flickr.com/photos/coffmanadam/albums/72177720324436621/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">flickr.com/photos/coffmanadam/</span><span class="invisible">albums/72177720324436621/</span></a><br><a href="https://mathstodon.xyz/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a></p>
Gareth 🏴󠁧󠁢󠁷󠁬󠁳󠁿🇬🇧<p>Missed this the other day, but it was to good not to share…<br><a href="https://tenforward.social/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a> <a href="https://tenforward.social/tags/browncoats" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>browncoats</span></a> <a href="https://tenforward.social/tags/firefly" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>firefly</span></a> <a href="https://tenforward.social/tags/serenity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>serenity</span></a></p>
Ozzie D, NP-hard :bikepump: :vegan:<p>Happy belated <a href="https://infosec.exchange/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a>!</p>
Rathmore - Dan Adinolfi<p><span class="h-card" translate="no"><a href="https://mastodon.art/@eloveart" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>eloveart</span></a></span> and I made a song celebrating Pi Day 2025</p><p><a href="https://rathmoretv.bandcamp.com/track/pi-pie" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">rathmoretv.bandcamp.com/track/</span><span class="invisible">pi-pie</span></a></p><p>Pi, pie, gimme some pie...</p><p><a href="https://mastodon.art/tags/music" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>music</span></a> <a href="https://mastodon.art/tags/musicproduction" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>musicproduction</span></a> <a href="https://mastodon.art/tags/electronicmusic" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronicmusic</span></a> <a href="https://mastodon.art/tags/dance" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dance</span></a> <a href="https://mastodon.art/tags/edm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>edm</span></a> <a href="https://mastodon.art/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a></p>
Jasmine Mangalaseril 🧁<p>Pi Day is one day, but pie can be had every day! My latest food column is up, along with some tasty handheld pies available in town!</p><p><a href="https://mstdn.ca/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a> <a href="https://mstdn.ca/tags/Pies" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Pies</span></a> <a href="https://mstdn.ca/tags/WaterlooRegion" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>WaterlooRegion</span></a> <a href="https://mstdn.ca/tags/Food" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Food</span></a> <a href="https://mstdn.ca/tags/Mastonom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Mastonom</span></a></p><p><a href="https://www.cbc.ca/news/canada/kitchener-waterloo/pi-day-pie-sweet-and-savoury-pie-company-damask-melinas-1.7482688" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">cbc.ca/news/canada/kitchener-w</span><span class="invisible">aterloo/pi-day-pie-sweet-and-savoury-pie-company-damask-melinas-1.7482688</span></a></p>
Sheru (she/her)<p>Whenever I manage to make a pie that doesn't gloop out all over the plate I feel like I just won the Bake Off.</p><p><a href="https://wandering.shop/tags/food" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>food</span></a> <a href="https://wandering.shop/tags/Baking" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Baking</span></a> <a href="https://wandering.shop/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a> <a href="https://wandering.shop/tags/HearthWitch" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HearthWitch</span></a> <a href="https://wandering.shop/tags/KitchenWitch" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>KitchenWitch</span></a></p>
kernpanik 🐾 🕊️ ☮<p><a href="https://chaos.social/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a> is already over; however, here's an interesting and quite entertaining article explaining why <a href="https://chaos.social/tags/NASA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NASA</span></a> only uses a tiny fraction [sic*] of Pi's infinite decimal places.</p><p>Even for its most accurate calculations, which are for interplanetary navigation, NASA's Jet Propulsion Laboratory uses 3.141592653589793.</p><p><a href="https://www.jpl.nasa.gov/edu/news/how-many-decimals-of-pi-do-we-really-need/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">jpl.nasa.gov/edu/news/how-many</span><span class="invisible">-decimals-of-pi-do-we-really-need/</span></a></p><p>* I find it amusing that they really say “a tiny fraction” - because mathematically, a tiny fraction of an infinite number would still be an infinite number. 🙃</p>
CW Wilkie<p>Went out to Dave the Pie Guy for a slice of pie. Didn't get one, but this time it was my fault: they sold out in the morning.</p><p>Tonight I drove out in the encroaching thunderstorm to the nice grocery store, and they were also completely sold out. But they had a BOGO on pizzas (which some elements call a "pie"), so I got a couple high-end frozen pizzas, if that's not an oxymoron.</p><p>Just to be sure, I swung by the grocery store my wife doesn't like, and they were fully stocked with pies. No sales, just a sign acknowledging <a href="https://social.vivaldi.net/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a>, but I came home with half a cherry pie, two hours before EOD.</p>
Evan Prodromou<p>Haskap and blueberry pie for dessert <a href="https://cosocial.ca/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a></p>
Gina Blank<p>A little late to the game, but happy <a href="https://mastoart.social/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a> nonetheless.</p><p>(Taken in the "junkyard town" of Goldfield, Nevada)</p><p><a href="https://mastoart.social/tags/PiDay2025" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay2025</span></a> <a href="https://mastoart.social/tags/PieDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PieDay</span></a> <a href="https://mastoart.social/tags/AbstractPhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AbstractPhotography</span></a></p>
Evan Prodromou<p>Deep dish pizza pies for <a href="https://cosocial.ca/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a></p>
🇨🇦syncros<p>Irrationally we're having cake on pi-day.<br><a href="https://mastodon.social/tags/piday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>piday</span></a> <a href="https://mastodon.social/tags/PiDay2025" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay2025</span></a></p>
Cecelia<p>Pies are done. Now they’re cooling. This concludes today’s Pi Day content.</p><p><a href="https://tech.lgbt/tags/PiDay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PiDay</span></a> <a href="https://tech.lgbt/tags/SweetPotatoPie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SweetPotatoPie</span></a></p>
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