Square root in C++

[odwa]

i have a problem of geting a square root in c++ using (cmath)

[harryhaaren]

Hey,

Could you describe the problem? Give us some more info on "what" the problem is?

If you went to a garage with a car and said, "its broken" they wouldnt know what was going on. Same goes here.

post up the

// code that
// your trying to use

Maybe also check the "cmath" #include <cmath> statement?

-Harry

[Topi Ojala]

http://www.cppreference.com/wiki/c/math/sqrt

Use doubles or floats, the function returns the square root.

[mrnutty]

How to use sqrt function in c++ :

int a = 3;
float b = 3;
double c = 3;

float t = sqrt(a); //invalid error. a is of type int. Only float|double allowed
float y = sqrt (  float(a) ); //valid because of typecast
float u = sqrt(b); //valid because b is of type float 
float h = sqrt(c); //valid because c is of type double