tanh() - Mathematical Function

How is Mathematical Function "tanh()" used in C++?
How to find the Hyperbolic tangent value of an argument?

Explanation

tanh() is a Mathematical Function that returns the hyperbolic tangent value for the given argument.

Syntax to find Hyperbolic Tangent value :

float tanh( float arg);
double tanh( double arg);
long double tanh( long double arg);

Example :

#include <stdio.h>
#include <math.h>
int main()
{
for (double arg=-1.0;arg<=1.0; arg+=.5)
{
printf("Hyperbolic tangent value of
%f is:: %f.\n", arg, tanh(arg));
}
return 0;
}

Result :

Hyperbolic tangent value of -1.000000 is:: -0.761594.
Hyperbolic tangent value of -0.500000 is:: -0.462117.
Hyperbolic tangent value of 0.000000 is:: 0.000000.
Hyperbolic tangent value of 0.500000 is:: 0.462117.
Hyperbolic tangent value of 1.000000 is:: 0.761594.

In the above example tanh() is used to find hyperbolic tangent for argument between "-1.0 to 1.0" incrementing the value by ".5".

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