std::acos(std::complex)
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                    |   Defined in header  
<complex>
  | 
||
|   template< class T >  
complex<T> acos( const complex<T>& z );  | 
(since C++11) | |
Computes complex arc cosine of a complex value z. Branch cut exists outside the interval [−1 ; +1] along the real axis.
[edit] Parameters
| z | - | complex value | 
[edit] Return value
Complex arc cosine of z in the range [0 ; ∞) along the real axis and in the range [−iπ ; iπ] along the imaginary axis.
[edit] See also
|    (C++11) 
 | 
   computes arc sine of a complex number (arcsin(z))  (function template)  | 
|    (C++11) 
 | 
   computes arc tangent of a complex number (arctan(z))  (function template)  |