coshf man page on Manjaro

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COSH(3)			   Linux Programmer's Manual		       COSH(3)

NAME
       cosh, coshf, coshl - hyperbolic cosine function

SYNOPSIS
       #include <math.h>

       double cosh(double x);
       float coshf(float x);
       long double coshl(long double x);

       Link with -lm.

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       coshf(), coshl():
	   _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 ||
	   _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L;
	   or cc -std=c99

DESCRIPTION
       The cosh() function returns  the	 hyperbolic  cosine  of	 x,  which  is
       defined mathematically as:

	   cosh(x) = (exp(x) + exp(-x)) / 2

RETURN VALUE
       On success, these functions return the hyperbolic cosine of x.

       If x is a NaN, a NaN is returned.

       If x is +0 or -0, 1 is returned.

       If  x  is  positive infinity or negative infinity, positive infinity is
       returned.

       If the result overflows, a range error occurs, and the functions return
       +HUGE_VAL, +HUGE_VALF, or +HUGE_VALL, respectively.

ERRORS
       See  math_error(7) for information on how to determine whether an error
       has occurred when calling these functions.

       The following errors can occur:

       Range error: result overflow
	      errno is set to ERANGE.  An  overflow  floating-point  exception
	      (FE_OVERFLOW) is raised.

CONFORMING TO
       C99, POSIX.1-2001.  The variant returning double also conforms to SVr4,
       4.3BSD.

BUGS
       In  glibc  version  2.3.4  and  earlier,	 an  overflow	floating-point
       (FE_OVERFLOW) exception is not raised when an overflow occurs.

SEE ALSO
       acosh(3), asinh(3), atanh(3), ccos(3), sinh(3), tanh(3)

COLOPHON
       This  page  is  part of release 3.65 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

				  2010-09-20			       COSH(3)
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