fmod, fmodf, fmodl - compute floating-point remainder value function

Syntax	#include <math.h> double fmod(double x, double y); C11 float fmodf(float x, float y); long double fmodl(long double x, long double y); (End)
Description	These functions compute the remainder of the division x/y. The remainder has the same sign as the dividend x, and its absolute value is always less than the divisor y.
Return val.	Remainder of the division x/y
	if successful.
	0             if y = 0.
Notes	An application should verify that y is non-zero before calling fmod().
See also	ceil(), ceilf(), ceill(), fabs(), floor(), math.h.