NAME

sinh, cosh, tanh, sinhcosh − Hyperbolic functions

LIBRARY

Math Library (libm.a)

SYNOPSIS

#include <math.h>

double sinh  (double x);
float  sinhf (float  x);
double cosh  (double x);
float  coshf (float  x);
double tanh  (double x);
float  tanhf (float  x);
double sinhcosh  (double x);
float  sinhcoshf (float  x);

DESCRIPTION

sinh() and sinhf() compute the hyperbolic sine of x.  sinh(x) and sinhf(x) are equivalent to (exp(x) - exp(-x))/2. 

cosh()  and coshf() compute the hyperbolic cosine of x.  cosh(x) and coshf(x) are equivalent to (e∗∗x + e∗∗(-x))/2. 

tanh() and tanhf() compute the hyperbolic tangent of x.  tanh(x) and tanhf(x) are equivalent to (e∗∗x - e∗∗(-x))/(e∗∗x + e∗∗(-x)). 

sinhcosh()  and sinhcoshf() compute both the hyperbolic sine and hyperbolic cosine of x.  sinhcosh(x) and sinhcoshf(x) are equivalent to (sinh x + icosh x).