# C tanh Function

The C tanh function is a Math Function used to calculate the Trigonometric Hyperbolic Tangent of a given value or specified expression. The syntax of the tanh is

`double tanh(double number);`

## C tanh Function Example

The math tanh Function allows you to find the Hyperbolic Tangent of a given value. In this program, We are going to find the Hyperbolic Tangent of different values and display the output.

```#include <stdio.h>
#include <math.h>

int main()
{
printf("\n The Hyperbolic Tangent Value of 0      = %.4f ", tanh(0));
printf("\n The Hyperbolic Tangent Value of 1      = %.4f ", tanh(1));

printf("\n The Hyperbolic Tangent Value of 1.25   = %.4f ", tanh(1.25));
printf("\n The Hyperbolic Tangent Value of 2.59   = %.4f ", tanh(2.59));

printf("\n The Hyperbolic Tangent Value of -0.23  = %.4f ", tanh(-0.23));
printf("\n The Hyperbolic Tangent Value of -4.32  = %.4f ", tanh(-4.32));

return 0;
}```

## tanh Example 2

In this C Programming example, we are allowing the user to enter their value. Next, this program uses the tanh function to find the hyperbolic tangent of a user given number.

```#include <stdio.h>
#include <math.h>

int main()
{
float number, tanhValue;

printf(" Please Enter any Numeric :  ");
scanf("%f", &number);

tanhValue = tanh(number);

printf("\n Hyperbolic Tangent of %.2f = %.4f ", number, tanhValue);

return 0;
}```
`````` Please Enter any Numeric :  -2.347

Hyperbolic Tangent of -2.35 = -0.9819``````