sin() function for complex number in C++ with Examples

The sin() function for complex numbers is defined in the <complex> header file. This function is the complex version of the sin() function. This function is used to calculate the complex sine of the complex number z. This function returns the sine of the complex number z. 

Syntax

sin (z);

Parameters

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

Return value

• This function returns the sin() of the complex number z.

Example 1

C++

// C++ program to demonstrate
// example of sin() function
// for Complex numbers

#include <complex>
#include <iostream>
using namespace std;

int main()
{
    complex<double> complexnumber(0.0, 1.0);

    // use of sin() function for complex number
    cout << "The sin of Complex Numbers: " << complexnumber << " is "
         << sin(complexnumber) << endl;

    return 0;
}

Output

The sin of Complex Numbers: (0,1) is (0,1.1752)

Time Complexity: O(1)
Auxiliary Space: O(1)

Example 2

C++

// C++ program to demonstrate
// example of sin() function
// for Complex numbers

#include <complex>
#include <iostream>
using namespace std;

int main()
{
    complex<double> complexnumber(1.0, 0.0);

    // Use of sin() function for complex number
    cout << "The sin of Complex Number: " << complexnumber << " is "
         << sin(complexnumber) << endl;

    return 0;
}

Output

The sin of Complex Number: (1,0) is (0.841471,0)

Time Complexity: O(1)
Auxiliary Space: O(1)