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u(t) is called 60 times per second. t: Elapsed time in seconds. S: Shorthand for Math.sin. C: Shorthand for Math.cos. T: Shorthand for Math.tan. R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5) c: A 1920x1080 canvas. x: A 2D context for that canvas.
Theme challenge of the month: #crypto
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  • #Pi galore

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  • Long parade of #Pi digits

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remix of d/19419 by u/Irratix

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  • A: (d/19419) As many #Pi digits as I want!
  • u/Irratix
    I'm not sure that counts as storing digits of pi, but I'm already impressed you managed to get this down to 68 characters :P
  • u/katkip
    what is 999n?? I've never saw that
  • u/katkip
    big int O_O
  • u/Xen
    love it!!!!

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remix of d/14305 by u/robbyg

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  • Calculating #pi based on Viète's formula

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  • Calculating #pi based on a formula I found in a Commodore 64 manual. Googling says it's the Gregory-Leibniz series.

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  • Estimating Pi using the Monte Carlo Method

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remix of d/7047 by u/BuRRak

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  • Golfing u/BuRRak π calculation using Nilakantha's series
  • u/AnnanFay
    Alternatives are: 33 chars using Wallis product but *very* long time to converge. 24 chars using Newton-Raphson if sin & cos allowed.
  • u/BuRRak
    Mind = blown
  • u/iverjo
    #pi

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  • I thought I'd see if I can calulate PI in 140 chars. Math.PI is 3.141592653589793, which is 15 decimal places. 15 decimal places is precise enough to calculate the circumference of the solar system (including Pluto) with an accuracy of a meter. The formula is Nilakantha's from the 15th century. You could also just print 245850922/78256779 but doing that doesn't seem much better than just printing Math.PI.

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