Oracle TANH() function
Description
This TANH() function  returns the hyperbolic tangent of a given number.
The function takes any numeric or nonnumeric data type (can be implicitly converted to a numeric data type) as an argument. 
If the argument is BINARY_FLOAT, then the function returns BINARY_DOUBLE. Otherwise, the function returns the same numeric data type as the argument
Uses of Oracle TANH() Function
- Mathematical calculations: Compute the hyperbolic tangent of numbers in various mathematical applications.
 - Scientific research: Perform hyperbolic trigonometric calculations in scientific studies.
 - Engineering computations: Use the hyperbolic tangent function in engineering problems and simulations.
 - Data analysis: Analyze data sets that require hyperbolic transformations or calculations.
 - Graphing and plotting: Generate graphs and plots involving hyperbolic tangent values.
 
Syntax:
TAN(X)
Where X is a number
Pictorial Presentation of TANH() function
Example - 1
SELECT TANH(.6) "Hyperbolic tangent of .6" FROM dual;
Here is the result.
Hyperbolic tangent of .6
------------------------
              .537049567
The above statement will return the tangent of the given number .6
