How would I get the square root in C++, do I have to use a function or something? I am using it for A*A + B*B = C*C, but I want to square root C so it is just C (this is the Pythagoreum Therom if I am not mistaken, except that it uses square root signs, the little 2s, but I don't know how to make them ). Any help is appreciated and needed.