What is C++ operator for squaring/square rooting a number?

[lowpro]

I'm new at C++, and I was wondering what the operator was for squaring and square rooting a number.

Example: 144 square rooted is 12
12 squared is 144

^so what would I put in where the words square rooted and squared are?
Thanks for any help.

 

[amd42]

First, you need to include cmath:

#include <cmath>

Then you can do exponents with

std::pow(base, exponent);

(use 2 as the exponent or just do x*x if you want to square something)

and square roots with

std::sqrt(value);

If you have a using namespace std; line at the top of your code then you don't need the std:: prefixes, but personally I don't like to do that because it pollutes the global namespace and prevents you from e.g. having a variable called "sqrt".

 

[matttm]

this is helpful to me, thx man