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 VALUE

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

When y is 0, remainder() returns (NaN or equivalent if available) 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 and errno may be set to [EDOM].

 ERRORS

The remainder() function will fail if:

[EDOM]

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

The remainder() function may fail if:

[EDOM]

The x or y argument is NaN.

 EXAMPLES

None.

 APPLICATION USAGE

None.

 FUTURE DIRECTIONS

None.

 SEE ALSO

abs(), <math.h>.