arg() function for Complex Number in C++
The arg() function for complex number is defined in the complex header file. This function is used to return the argument of the complex number z.
Syntax:
template<class T> T arg (const complex<T>& z);
Parameter:
- z: It represents the given complex number.
Return: It returns the argument of the complex number.
Below programs illustrate the above function:-
Example 1:
// C++ program to demonstrate// example of arg() function. #include <bits/stdc++.h>using namespace std; int main (){ // defines the complex number: (5.0 + 12.0i) complex<double> complexnumber (5.0, 12.0); // prints the argument of the complex number cout << "The argument of " << complexnumber << " is: "; cout << arg(complexnumber) << endl; return 0;} |
Output:
The argument of (5,12) is: 1.17601
Example 2:
// C++ program to demonstrate// example of arg() function #include <bits/stdc++.h>using namespace std; int main (){ // defines the complex number: (4.0+3.0i) complex<double> complexnumber (4.0, 3.0); // prints the argument of the complex number cout << "The argument of " << complexnumber << " is: "; cout << arg(complexnumber) << endl; return 0;} |
Output:
The argument of (4,3) is: 0.643501
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