Contents | Index | < Browse | Browse >

---

LETTERtanhULETTER Hyperbolic tangent function.

Overview
#include <math.h>

r = tanh(x);

double r;
double x;

Description
Returns the hyperbolic tangent of the double-precision floating-point number "x".

Note
Of course all trigonometric functions require the angle be expressed in radians. Pass the angle "w" expressed in degrees to
x = PI/180 * w
to receive its equivalent in radians in "x".

Returns
The hyperbolic tangent as a double-precision floating-point value.