COSH(3) BSD 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 C89'').
BSD
May 2, 1991 BSD