man.bsd.lv manual page server

Manual Page Search Parameters

COS(3) Library Functions Manual COS(3)

cos, cosf, coslcosine function

library “libm”

#include <math.h>

double
cos(double x);

float
cosf(float x);

long double
cosl(long double x);

The (), (), and () 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).

The cos() function returns the cosine value.

acos(3), asin(3), atan(3), atan2(3), cosh(3), math(3), sin(3), sinh(3), tan(3), tanh(3)

The cos() function conforms to ANSI X3.159-1989 (“ANSI C89”).

A cos() function appeared in Version 1 AT&T UNIX.

September 2, 2019 NetBSD-9.2