NAME

remainder − remainder function

SYNOPSIS

#include <math.h>

double remainder(double x, double y);

DESCRIPTION

The remainder() function 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│ = ½, the value n is chosen to be even. 

The behaviour of remainder() is independent of the rounding mode. 

RETURN VALUES

The remainder() function returns the floating point remainder r = x − ny when y is non-zero. 

When y is 0, remainder() returns NaN.  and sets errno to EDOM. 

If the value of x is ±Inf, remainder() returns NaN and sets errno to EDOM. 

If x or y is NaN, then the function returns NaN. 

ERRORS

The remainder() function will fail if:

EDOM The y argument is 0 or the x argument is positive or negative infinity. 

USAGE

The remainder() function computes the remainder x REM y required by ANSI/IEEE 754 (IEC 559). 

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

SEE ALSO

fmod(3M), attributes(5)

SunOS 5.6  —  Last change: 29 Dec 1996