What should I use to calculate radical?

Question

I tried: a^(1/2) and a^(0.5)
but it didn't work

Answer 1

Use std::pow(a, 0.5). Omit the "std::" if you are "using namespace std". Remember to include <cmath>. If you just want to calculate the square root there is std::sqrt(a), also in cmath.

Answer 2

Thanks