> Pi, after all, is no fraction, but its handy to keep around anyway.
You actually only need a surprisingly small amount of decimals of pi to calculate the circumference of the visible universe (just about the largest circle you can possibly have) to the accuracy of a single proton (just about the smallest scale you can realistically want to measure).
I think it was about 50 decimals or so.
Take that, crazy hundreds-of-decimals-of-pi memorizing people! ;-)
You actually only need a surprisingly small amount of decimals of pi to calculate the circumference of the visible universe (just about the largest circle you can possibly have) to the accuracy of a single proton (just about the smallest scale you can realistically want to measure).
I think it was about 50 decimals or so.
Take that, crazy hundreds-of-decimals-of-pi memorizing people! ;-)