REMAINDER(3)

NAME
remainder - floating-point remainder function

SYNOPSIS
#include <math.h>
double
remainder(double x, double y);
long double
remainderl(long double x, long double y);
float
remainderf(float x, float y);

DESCRIPTION
The remainder() functions compute the value r such that r = x - n*y, where n is the integer nearest the exact value of x/y.

If there are two integers closest to x/y, n shall be the even one. If r is zero, it is given the same sign as x.

SPECIAL VALUES
remainder(x, y) returns a NaN and raises the "invalid" floating-point exception if x is infinite or y is 0.

SEE ALSO
math(3)

STANDARDS
The remainder() functions conform to ISO/IEC 9899:1999(E).