conj() function in C++ with Examples

The conj() function is defined in the complex header file. This function is used to find the conjugate of the complex number z. If we represent a complex number z as (real, img), then its conjugate is (real, -img).

Syntax:

template<class T> complex<T> 
     conj (const complex<T>& Z);

Parameter:

  • z: This method takes a mandaory parameter z which represents the complex number.

Return value: This function returns the conjugate of the complex number z.

Below programs illustrate the conj() function for complex number in C++:

Example 1:-

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// C++ program to demonstrate
// example of conj() function.
   
#include <bits/stdc++.h>
using namespace std;
   
// driver program
int main ()
{
  complex<double> complexnumber (3.0, 2.4);
   
  cout << "The conjugate of " << complexnumber << " is: ";
   
  // use of conj() function
  cout << conj(complexnumber) << endl;
  return 0;
}

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Output:

The conjugate of (3,2.4) is: (3,-2.4)

Example 2:-

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// C++ program to demonstrate
// example of conj() function.
   
#include <bits/stdc++.h>
using namespace std;
   
// driver program
int main ()
{
  complex<double> complexnumber (2.0, 9.0);
   
  cout << "The conjugate of " << complexnumber << " is: ";
   
  // use of conj() function
  cout << conj(complexnumber) << endl;
  return 0;
}

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Output:

The conjugate of (2,9) is: (2,-9)


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