COS(3) BSD Library Functions Manual COS(3)NAMEcos — cosine function
SYNOPSIS
#include <math.h>
double
cos(double x);
DESCRIPTION
The cos() function computes the cosine of x (measured in radians).
SPECIAL VALUES
cos(�0) returns 1.
cos(�infinity) returns a NaN and raises the "invalid" floating-point
exception.
SEE ALSOsin(3), tan(3), asin(3), acos(3), atan(3), atan2(3), sinh(3), cosh(3),
tanh(3), math(3)STANDARDS
The cos() function conforms to ISO/IEC 9899:1999(E).
BSD November 20, 2002 BSD