Usage and example of C library function fmod()

C Standard Library - <math.h>

C Library Function double fmod(double x, double y) returns x divided by y the remainder.

Declaration

Below is the declaration of the fmod() function.

double fmod(double x, double y)

Parameters

• x 　-- representing the numerator as a floating-point value.

• y -- representing the denominator as a floating-point value.

Return Value

This function returns the remainder of x/the remainder of y.

Online Example

The following example demonstrates the usage of the fmod() function.

#include <stdio.h>
#include <math.h>
int main()
{
　　　　float a, b;
　　　　int c;
　　　　a =　6.25;
　　　　b =　5.1;
　　　　c =　4;
　　　　printf("%f"}　/　%d's remainder is %lf\n", a, c, fmod(a, c));
　　　　printf("%f"}　/　printf("%f The remainder is %lf\n", a, b, fmod(a, b));
　　　　return(0);
}

Let's compile and run the above program, which will produce the following result:

6.250000　/　4　The remainder is　2.250000
6.250000　/　5.10The remainder of 0000 is　1.150000

C Standard Library - <math.h>