NAME    [Toc]    [Back]

     cosh, coshf - hyperbolic cosine function

LIBRARY    [Toc]    [Back]

     Math Library (libm, -lm)

SYNOPSIS    [Toc]    [Back]

     #include <math.h>

     double
     cosh(double x);

     float
     coshf(float x);

DESCRIPTION    [Toc]    [Back]

     The cosh() and coshf() functions compute the hyperbolic cosine of x.

RETURN VALUES    [Toc]    [Back]

     If the magnitude of x is too large, cosh(x) and coshf(x) return Inf and
     sets the global variable errno to ERANGE.

SEE ALSO    [Toc]    [Back]

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

STANDARDS    [Toc]    [Back]

     The cosh() function conforms to ANSI X3.159-1989 (``ANSI C'').

BSD                               May 2, 1991                              BSD