Returns the floating-point remainder r = x - ny when y is non-zero. The value n is the integral value nearest the exact value x/y. When |n-x/y| = 1/2, the value n is chosen to be even.

#include <math.h>

double remainder (double x, double y);

Parameters

x, y

Any numeric expression.

Return Values

Upon successful completion, these functions shall return the floating-point remainder r = x - ny when y is non-zero.

If x or y is NaN, a NaN shall be returned.

If x is infinite or y is 0 and the other is non-NaN, a domain error shall occur, and either a NaN (if supported), or an implementation-defined value shall be returned.

Requirements