trying to figure out how to use the math library in C++

Question

I was wonder how you use the math library in C++? I'm still pretty new to the language and not sure how to use this. I think that I have have to put something at the beginning of my code but I'm not sure where to look or what do to.

Answer 1

At the start of the file that you would like to use math in, you need the following line of code:

#include <cmath>