That's hardly a meaningful rebuttal. C = 2 * Pi * r = Tau * r A = Pi * r ^2 = Ta... | Hacker News

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onemoreact on March 14, 2012 | parent | context | favorite | on: No, really, pi is wrong: The Tau Manifesto

That's hardly a meaningful rebuttal.

  C = 2 * Pi * r = Tau * r
  A = Pi * r ^2 = Tau / 2 * r

PS: When dealing with radians Tau is fine, but I like showing +Pi and -Pi both point away from 0.

baby on March 14, 2012 [–]

> I like showing +Pi and -Pi both point away from 0.

What would be cool is to see two different points showing what the direction is.

c = Pi/2

+c would point upwards, -c would point downwards. 4c is a pizza.

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