imag() function in C++
The imag() function is defined in the complex header file. The imag() function is used to find the imaginary part of the complex number.
Syntax:
template<class T> T imag(const complex<T>& z);
Parameter: This method takes a mandatory parameter z: which represents the given complex number.
Return: It returns the imaginary part of the complex number.
Below programs illustrate the above function:-
Example 1:-
// C++ program to demonstrate // example of imag() function. #include <bits/stdC++.h> using namespace std; // Driver function int main() { // defines the complex number: (20.3 + 4.9i) complex< double > imagpart(20.3, 4.9); // print the complex number cout << "Complex Number = " << imagpart << endl; // prints the imag part using the imag function cout << "Imag part of the complex number is =" << imag(imagpart) << endl; return 0; } |
Output:
Complex Number = (20.3,4.9) Imag part of the complex number is =4.9
Example 2:-
// C++ program to demonstrate // example of imag() function. #include <bits/stdC++.h> using namespace std; // driver function int main() { // defines the complex number: (2 + 2i) complex< double > imagpart(2, 2); // print the complex number cout << "Complex Number = " << imagpart << endl; // prints the imag part using the imag function cout << "Imag part of the complex number is =" << imag(imagpart) << endl; return 0; } |
Output:
Complex Number = (2,2) Imag part of the complex number is =2
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