This is a discussion on Square Root within the C++ Programming forums, part of the General Programming Boards category; How would I get the square root in C++, do I have to use a function or something? I am ...
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.
Yeah there's a function for that:
Prototype: double sqrt(double num);
Header file: math.h
PHP Code:/*Start of code*/
#include <math.h>
#include <iostream.h>
int main(void)
{
double num = 9.0;
cout << "The square root of " << num << "is " << sqrt(num);
return 0;
}
/*End of code*/
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Great, thanks tons. That will help me out alot.
"Um...well..."
-Kyoto Oshiro
Sure! Any time
All men are created equal. But some are more equal than others.
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You could also use this:
double pow(double x,double y);
It raises x to the power of y, and returns the result.
Include math.h
e.g. pow(number,0.5);
Yeah that too
All men are created equal. But some are more equal than others.
Visit me at http://www.angelfire.com/my/billholm
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