fmod(x,y) function in C

fmod(x,y) function in C, what is do?

It calculates x modulo y i.e., the remainder of x/y.
This function is the same as the modulus operator, but fmod() performs floating point divisions.

Example:

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

void main ()
{
  printf ("fmod of 16.9 and 13.2 is %lf", fmod (16.9,13.2) );
  getch 0;
}

Output:

1.280303

Explanation:

First two lines are header files which is included to use input/output function i.e., printf 

and mathematical function fmod.

fmod is the function which is used to find out the remainder after division of the 

two floating point numbers.