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FreeBSD 11.0 - man page for cosh (freebsd section 3)

COSH(3) 						   BSD Library Functions Manual 						   COSH(3)

NAME
cosh, coshf, coshl -- hyperbolic cosine functions
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <math.h> double cosh(double x); float coshf(float x); long double coshl(long double x);
DESCRIPTION
The cosh(), coshf(), and coshl() functions compute the hyperbolic cosine of x.
SEE ALSO
acos(3), asin(3), atan(3), atan2(3), ccosh(3), cos(3), math(3), sin(3), sinh(3), tan(3), tanh(3)
STANDARDS
The cosh() function conforms to ISO/IEC 9899:1990 (``ISO C90'').
BSD
August 17, 2013 BSD