NAME

sincos, sincosf, sincosl —

sine and cosine functions

SYNOPSIS

#include <math.h>

void
sincos(double x, double *s, double *c);

void
sincosf(float x, float *s, float *c);

void
sincosl(long double x, long double *s, long double *c);

DESCRIPTION

The sincos(), sincosf(), and sincosl() functions compute the sine and cosine of x. Using these functions allows argument reduction to occur only once instead of twice with individual invocations of sin() and cos(). Like sin() and cos(), a large magnitude argument may yield a result with little or no significance.

RETURN VALUES

Upon returning from sincos(), sincosf(), and sincosl(), the objects pointed to by *s and *c are assigned the values of sine and cosine, respectively.

SEE ALSO

cos(3), sin(3)

HISTORY

These functions first appeared in OpenBSD 6.3.