C Reference function sqrt()
Usage of sqrt():
double sqrt(double x);
Parameters:
The argument cannot be negative.
Return value:
The returned value is always positive.
Source code example of sqrt():
#include<stdio.h>
#include<math.h>
main()
{
double input, output;
input = 256.0;
output = sqrt (input);
printf ("sqrt(%lf) = %lf\n", input, output);
return 0;
}
Output of the sqrt example program above:
sqrt(256.000000) = 16.000000
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