I saw recently that you would only need 39 decimals of pi to calculate the diameter of the observable universe to the margin of a single hydrogen atom. So then how in the world do people make the calculations to find more digits of pi? How did we get to so many?
In: Mathematics
FYI, we rarely _need_ all that many decimals in the real world. Even NASA is happy to use just six or so decimals for their trajectory calculations.
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