Ruby | Math tanh() function

The tanh() is an inbuilt function in Ruby returns the hyperbolic tangent of value given in radians. The value passed is in range [-inf, +inf]. The returned value is in range [-1, +1].

Syntax: Math.tanh(value) Parameters: The function accepts one mandatory parameter value whose corresponding hyperbolic tangent value is returned. Return Value: It returns the hyperbolic tangent value.

Example 1: 

Output:

-1.0
0.5849798828807289
1.0
-1.0

Example 2: 

Output:

0.0
1.0
-1.0
-0.9999877116507956

Reference: https://devdocs.io/ruby~2.5/math#method-c-tanh