For a school assignment, we were to find some way to overcome Elisp's limited floating point precision. I found this, which I thought was pretty useful, but it gives no description of how to actually use it. I then found this, which says that in order to use calc's arbitrary precision math I need to first set the precision using this:
(calc-eval '(calc-precision 20) 'eval)
Unfortunately, Emacs then tells me that
calc-precision's function definition is void. Can anyone help me fix this problem?