std::complex::imag

From cppreference.com
T imag() const;
(1)
void imag( T value );
(2)

Accesses the imaginary part of the complex number.

1) Returns the imaginary part.

2) Sets the real imaginary to value.

[edit] Parameters

value - the value to set the imaginary part to

[edit] See also

accesses the real part of the complex number
(public member function)