I wouldn't use Tau for the area of a circle personally, but if it was a regular thing, there's the problem of the common formulae for the surface area of a sphere (S=PI*r3) and the surface area of a cylinder (S=2*PI*r2+2*PI*rh) that would be altered as well...and we can't forget the formulae for volume (Vsphere=4/3*PI*r3 and Vcylinder=PI*r2h).
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| Response Title | Author and Date |
| PI = 4 * ATN(1) and TAU = 8 * ATN(1) | on Jul 1 |
| That's why I think using PI *and* TAU is a better option. | on Jul 1 |
| I got a better idea. TWO = 2 so circumference = TWO * PI * R | on Jul 2 |
| You know what's even better than pi and tau? | qbguy on Jul 2 |
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