The arg() function for complex numbers 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 Type: It returns the argument of the complex number. Below are programs that illustrate the above function:
Example 1:
CPP
#include& lt; bits / stdc++.h & gt;
using namespace std;
int main()
{
complex& lt;
double & gt;
complexnumber(5.0, 12.0);
cout& lt;
<
"
The argument of& quot;
<
<
complexnumber& lt;
<
"
is:
"
;
cout& lt;
<
arg(complexnumber) & lt;
<
endl;
return 0;
}
|
Output:
The argument of (5,12) is: 1.17601
Time Complexity: O(1)
Auxiliary Space: O(1)
Example 2:
CPP
#include& lt; bits / stdc++.h & gt;
using namespace std;
int main()
{
complex& lt;
double & gt;
complexnumber(4.0, 3.0);
cout& lt;
<
"
The argument of& quot;
<
<
complexnumber& lt;
<
"
is:
"
;
cout& lt;
<
arg(complexnumber) & lt;
<
endl;
return 0;
}
|
Output:
The argument of (4,3) is: 0.643501
Time Complexity: O(1)
Auxiliary Space: O(1)
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