What is Math.tanh() in Ruby?
The tanh() function in Ruby returns a number’s hyperbolic tangent. To be more specific, it returns the hyperbolic tangent of a number in radians.
Figure 1 shows the mathematical representation of the tanh() function.
Note: This function is present in the
Mathmodule.
Syntax
tanh(num)
Parameter
This function requires a number that represents an angle in radians as a parameter.
To convert degrees to radians, use:
radians = degrees * ( PI / 180.0 )
Return value
tanh() returns the hyperbolic tangent of a (radians) number that is sent as a parameter.
Example
#positive number in radiansputs "The value of tanh(2.3) : ", Math.tanh(2.3)#negative number in radiansputs "The value of tanh(-2.3) : ", Math.tanh(-2.3)#converting the degrees angle into radians and then applying tanh()#degrees = 45#PI = 3.14159265result = 45 * (Math::PI / 180.0)puts "The value of tanh(#{result}) : ", Math.tanh(result)