Difference between revisions of "cpp/numeric/complex/real2"
From cppreference.com
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{{dsc inc | cpp/numeric/complex/dsc imag2}} | {{dsc inc | cpp/numeric/complex/dsc imag2}} | ||
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Revision as of 14:06, 14 June 2014
| Defined in header <complex>
|
||
| template< class T > T real( const complex<T>& z ); |
(1) | (until C++14) |
| template< class T > constexpr T real( const complex<T>& z ); |
(1) | (since C++14) |
| long double real( long double z ); |
(2) | (since C++11) |
| template< class DoubleOrIngeter > double real( DoubleOrInteger z ); |
(3) | (since C++11) |
| float real( float z ); |
(4) | (since C++11) |
Returns the real component of the complex number z, i.e. z.real().
Additional overloads are provided for float, double, long double, and all integer types, which are treated as complex numbers with zero imaginary component.(since C++11)
Parameters
| z | - | complex value |
Return value
the real component of z
See also
| accesses the real part of the complex number (public member function) | |
| returns the imaginary part (function template) | |
| C documentation for creal
| |
