std::tanh
From cppreference.com
                    
                                        
                    
                    
                                                            
                    |   Defined in header <cmath>
   | 
||
|   float       tanh( float arg );  | 
||
|   double      tanh( double arg );  | 
||
|   long double tanh( long double arg );  | 
||
|   double      tanh( Integral arg );  | 
(since C++11) | |
Computes hyperbolic tangent of arg
[edit] Parameters
| arg | - | floating point value | 
[edit] Return value
hyperbolic tangent of arg
[edit] See also
|    computes hyperbolic sine (sh(x))  (function)  | |
|   computes hyperbolic cosine (ch(x))  (function)  | |
|    (C++11)  | 
  hyperbolic arc tangent   (function)  | 
|    computes hyperbolic tangent of a complex number   (function template)  | |
|    applies the function std::tanh to each element of valarray   (function template)  | |