## No, really, pi is wrong.

The Tau Manifesto
posted by anotherpanacea on Mar 14, 2016 - 63 comments

## Steve Martin and Robin Williams Riffing on Mathematics

In 2002, Steve Martin sat down for a Q&A about his writing and his interest in mathematics. His friend Robin Williams was on hand to help out. Please pardon the video quality. Part 1 Part 2 Part 3 Part 4 Part 5
posted by Optamystic on Sep 20, 2015 - 14 comments

## 3Blue1Brown: Reminding the world that math makes sense

Understanding e to the pi i - "An intuitive explanation as to why e to the pi i equals -1 without a hint of calculus. This is not your usual Taylor series nonsense." (via via; reddit; previously)
posted by kliuless on Jun 6, 2015 - 28 comments

## I got cosines / on a cloudy day

The goofy, lofi math music of Al G. Bra and friends: Pi GirlSay That Funky Number, Math Guy — Mathonna's Mathematical Girl. Plus: a trailer for math thriller Live and Let Pi, featuring the title track by Paul DesCartney.
posted by cortex on Mar 14, 2015 - 5 comments

## Celebrate Vi day.

Vi Hart rants about what day today is. (previous celebrations)
posted by Obscure Reference on Mar 14, 2015 - 47 comments

## Using pies to calculate pi

Ahead of Pi Day (March 14), Matt Parker tries to accurately calculate pi using pies. [SLYT] An extended version of the video will be uploaded on Pi Day, but here's your chance to go out and buy pies before that. (Video runs 3 minutes, 14 seconds.)
posted by Room 641-A on Mar 13, 2013 - 14 comments

## The Art of π, φ and e

The Art of π, φ and e
posted by Blazecock Pileon on Jun 26, 2012 - 24 comments

## True art is irrational.

This is what pi sounds like. At least, that's one person's interpretation. There are certainly plenty of others, including touchtone pi, hammered dulcimer pi, violin pi, smooth techno pi, crazy awesome pi, vaguely unsettling pi (sounds best with headphones), and lots of piano pi. Pi has even done a duet with its buddy e. Nothing here that tickles your fancy? Think you could do better? Why not make your own pi song? Hell, make two! If you're having trouble remembering all those pesky digits, don't worry: there's a song for that, too.

(pi as music previously on metafilter)
posted by Captain Cardanthian! on Mar 8, 2011 - 21 comments

## How do you calculate Pi? Build a supercomputer.

How do you calculate Pi? Build a supercomputer. The Mountains of Pi, a New Yorker profile of the mathematician (sic) the Chudnovsky brothers. Warning: the article is from 1992, and internet is missing its definite article. (Previously)
posted by OmieWise on Sep 9, 2010 - 31 comments

## It's twice as good as Pi!

Happy Tau Day!
posted by scalefree on Jun 28, 2010 - 46 comments

## A constant reminder

"This day may be celebrated in a variety of ways. Pause and give thought to the role that the number pi has played in your life. Imagine a world without pi. Attempt to memorise pi to as many decimal places as you can. If you're feeling creative, devise alternative values for pi. Go to a party (I will). Or just celebrate in the time-honoured fashion of ignoring Pi Approximation Day altogether."

Happy Pi Approximation Day.
posted by swift on Jul 23, 2009 - 55 comments

## Pi(es) in a field

A new crop circle formation in Wiltshire depicts the first 10 digits of pi.
posted by casarkos on Jun 20, 2008 - 96 comments

## 3.14159265itwasthebestoftimesitwastheworstofti...

Ever wondered if and where a specific set of numbers could be found in pi? Maybe you'd like to know where your birthday is? Or maybe just something funny. [prev. here, here]
posted by TimeTravelSpeed on Dec 4, 2007 - 68 comments

## Squaring the square

Nowhere-neat tilings are actually pretty neat. We all know you can't "square the circle", but do you know the story of squaring the square? (And by the way, even if you can't construct π with a ruler and compass, you can come awfully close without too much work.)
posted by Wolfdog on Dec 4, 2007 - 10 comments

## by the numbers

Pi to 1,000 places on piano is just one of the many catchy tunes on math sonifications. And check out more interesting things on on artist Tom Dukich's site.