C++ square root command........

[m316foley]

whats the square root command in c++?

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[driver]

In C it was

#include <math.h>
double sqrt(double num);

where the square root is returned. If num is negative, an error occurs. This should still be valid in C++.

[Galen of Edgewood]

1st of all, congrats on Genetic! http://www.sharkyforums.com/ubb/smile.gif

driver's suggestion would work. Another option is also in math.h

double pow( double x, double y );

Just raise x to .5 and you'd get the same thing. This might be a good command to know if you need to raise things to powers.

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[This message has been edited by Galen of Edgewood (edited November 30, 2001).]

[bIOHZRd]

But the real question is, which one is fast? http://www.sharkyforums.com/ubb/smile.gif

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