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