SINH

sinh − hyperbolic sine function

#include <math.h>

double sinh(double x);

The sinh() function returns the hyperbolic sine of x, which is defined mathematically as (exp(x) - exp(-x)) / 2.

SVID 3, POSIX, BSD 4.3, ISO 9899

acosh(3), asinh(3), atanh(3), cosh(3), tanh(3)