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COSH(3)               DragonFly Library Functions Manual               COSH(3)

NAME
     cosh, coshf, coshl -- hyperbolic cosine functions

SYNOPSIS
     #include <math.h>

     double
     cosh(double x);

     float
     coshf(float x);

     long double
     coshl(long double x);

DESCRIPTION
     The cosh() function computes the hyperbolic cosine of x.  The coshf()
     function is a single precision version of cosh().  The coshl() function
     is an extended precision version of cosh().

RETURN VALUES
     If the magnitude of x is too large, cosh(x), coshf(x) and coshl(x) return
     infinity and set the global variable errno to ERANGE.

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

HISTORY
     The cosh() function first appeared in Version 7 AT&T UNIX.

DragonFly 4.1                  November 3, 2013                  DragonFly 4.1