Syntax

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

sqrt calculates the nonnegative value of the square root of x.

sqrt returns the square root result. If x is negative, the function sets errno to EDOM, and returns 0.

This example computes the square root of 45.

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main(int argc,char **argv)
{
   double value = 45.0;

   printf("sqrt( %f ) = %f\n", value, sqrt(value));
   return 0;

   /****************************************************************************
      The output should be:

      sqrt( 45.000000 ) = 6.708204
   ****************************************************************************/
}

• exp
  
• hypot
  
• log
  
• log10
  
• pow

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