COS(3) BSD Library Functions Manual COS(3)

NAME
     ccooss - cosine function

SYNOPSIS
     ##iinncclluuddee <>

     double
     ccooss(double x);

     long double
     ccoossll(long double x);

     float
     ccoossff(float x);

DESCRIPTION
     The ccooss() function computes the cosine of x (measured in radians).

SSPPEECCIIAALL VVAALLUUEESS
     ccooss(+-0) returns 1.

     ccooss(+-infinity) returns a NaN and raises the "invalid" floating-point
     exception.

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

STANDARDS     The ccooss() function conforms to ISO/IEC 9899:1999(E).

BSD                            November 20, 2002                           BSD