| COS(3) | Library Functions Manual | COS(3) |
cos, cosf,
cosl —
#include <math.h>
double
cos(double
x);
float
cosf(float
x);
long double
cosl(long
double x);
cos(), cosf(), and
cosl() functions compute the cosine of
x (measured in radians). A large magnitude argument may
yield a result with little or no significance. For a discussion of error due
to roundoff, see math(3).
cos() function returns the cosine value.
cos() function conforms to ANSI
X3.159-1989 (“ANSI C89”).
cos() function appeared in
Version 1 AT&T UNIX.
| September 2, 2019 | NetBSD 10.0 |