COSH(3)                  BSD Library Functions Manual                  COSH(3)

NAME
     cosh -- hyperbolic cosine function

SYNOPSIS
     ##include <>

     double
     cosh(double x);

     long double
     coshl(long double x);

     float
     coshf(float x);

DESCRIPTION
     The coshf() function computes the hyperbolic cosine of x.

SPECIAL VALUES
     cosh(]-0) returns 1.

     cosh(]-infinity) returns ]infinity.

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

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

BSD                            November 20, 2002                           BSD