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# std::cos(std::complex)

From cppreference.com
< cpp‎ | numeric‎ | complex

Defined in header `<complex>` |  |
template< class T > complex<T> cos( const complex<T>& z ); |  |

Computes complex cosine of a complex value `z`.

### [edit] Parameters

z | - | complex value

### [edit] Return value

Complex cosine of `z`.

### [edit] See also

sin(std::complex) | computes sine of a complex number (sin(z)) (function template) [edit]
tan(std::complex) | computes tangent of a complex number (tan(z)) (function template) [edit]
acos(std::complex) (C++11) | computes arc cosine of a complex number (arccos(z)) (function template) [edit]
cos | computes cosine (cos(x)) (function) [edit]
cos(std::valarray) | applies the function std::cos to each element of valarray (function template) [edit]
C documentation for ccos

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