cosh(3) - NetBSD Manual Pages

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COSH(3)                 NetBSD Library Functions Manual                COSH(3)


NAME

     cosh, coshf - hyperbolic cosine function


LIBRARY

     Math Library (libm, -lm)


SYNOPSIS

     #include <math.h>

     double
     cosh(double x);

     float
     coshf(float x);


DESCRIPTION

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


RETURN VALUES

     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

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


STANDARDS

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

NetBSD 2.1                        May 2, 1991                       NetBSD 2.1