sincos,
sincosf,
sincosl —
sine
and cosine functions
#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);
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.
Upon returning from
sincos(),
sincosf(), and
sincosl(), the objects pointed to by
*s and
*c
are assigned the values of sine and cosine, respectively.
cos(3),
sin(3)
These functions first appeared in
OpenBSD 6.3.
![[OpenBSD]](/openbsd.gif){kind=small}