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std::arg(std::complex)

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< cpp‎ | numeric‎ | complex
Revision as of 09:43, 8 November 2013 by 198.102.153.2 (Talk)

Defined in header <complex>
template< class T >
T arg( const complex<T>& z );
(1)
long double arg( long double z );
(2) (since C++11)
template< class DoubleOrIngeter >
double arg( DoubleOrInteger z );
(3) (since C++11)
float arg( float z );
(4) (since C++11)

Returns the phase angle (in radians) of the complex number z, i.e. atan2(std::imag(z), std::real(z)).

(since C++11)Additional overloads are provided for float, double, long double, and all integer types, which are treated as complex numbers with zero imaginary component.

Parameters

z - complex value

Return value

the phase angle of z

See also

returns the squared magnitude
(function template) [edit]
returns the complex conjugate
(function template) [edit]
constructs a complex number from magnitude and phase angle
(function template) [edit]