fmod(3) BSD Library Functions Manual fmod(3)
NAME
fmod -- floating-point remainder function
SYNOPSIS
#include <math.h>
double
fmod(double x, double y);
long double
fmodl(long double x, long double y);
float
fmodf(float x, float y);
DESCRIPTION
The fmod() functions compute the floating-point remainder of x/ y.
Specifically, the functions return the value x-i*y, for some integer i
such that, if y is non-zero, the result has the same sign as x and magni-
tude less than the magnitude of y.
SPECIAL VALUES
fmod(+-0, y) returns +-0 if y is neither 0 nor NaN.
fmod(x, y) returns a NaN and raises the "invalid" floating-point excep-
tion for x infinite or y zero.
fmod(x, +-infinity) returns x for x not infinite.
VECTOR OPERATIONS
If you need to apply the fmod() functions to SIMD vectors or arrays,
using the following functions provided by the Accelerate.framework may
give significantly better performance:
#include <Accelerate/Accelerate.h>
vFloat vfmodf(vFloat x, vFloat y);
void vvfmodf(float *z, const float *y, const float *x, const int *n);
void vvfmod(double *z, const double *y, const double *x, const int *n);
SEE ALSO
math(3)
STANDARDS
The fmod() functions conform to ISO/IEC 9899:2011.
BSD December 11, 2006 BSD
Mac OS X 10.9.1 - Generated Wed Jan 8 06:17:55 CST 2014