How can we use irrational numbers in math if we don’t know the full number?

Question

How can we use irrational numbers in math if we don’t know the full number?

In: 232

Answer 1

Much of mathematics is based on approximations and statistical likenesses. As such, many times in math, “pretty damn close” is often times “good enough” in most cases.

Reference: see the delta/epsilon proof laying the foundational framework for calculus. Me: BS mathematics.

NB: and yes, I know approximations are often times not good enough, but pi to sixteen places is pretty close to pi at six million.