Mar. 14th, 2012

fiat_knox: silhouette of myself taken at sunrise (Default)
I like that people have such fondness for the circle constant π.

However, they kind of got it wrong a couple of thousand years ago.

Happy Half Tau Day!

π = τ/2 = 3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 58209 74944 59230 78164 06286 20899 86280 34825 34211 70679 82148 08651 32823 06647 ...

τ = 6.28318 53071 79586 47692 52867 66559 00576 83943 38798 75021 16419 49889 18461 56328 12572 41799 72560 69650 68423 41359 64296 17302 65646 26564 ...

(You've probably been calling τ 2π all these years, never realising that the formula 2πr is even easier to remember as τr ...)

100,000 digits of τ

The Tau Manifesto

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