C++ Program to Add Complex Numbers by Passing Structure to a Function

Configurare noua (How To)

Situatie

In this program, two complex numbers entered by the user are stored in the structures num1 and num2.

  • These two structures are passed to addComplexNumbers() function which calculates the sum and returns the result to the main() function.
  • This result is stored in the structure complexSum.
  • Then, the sign of the imaginary part of the sum is determined and stored in the char variable signOfImag.
  • If the imaginary part of complexSum is positive, then signofimag is assigned the value '+'. Else, it is assigned the value '-'
  • We then adjust the value of complexSum.imag.
  • This code changes complexSum.imag to positive if it is found to be of negative value.
  • This is because if it is negative, then printing it along with signofimag will give us two negative signs in the output.
  • So, we change the value to positive to avoid sign repetition.
  • After this we finally display the sum.

Backup

#include <iostream>
using namespace std;

typedef struct complex {
    float real;
    float imag;
} complexNumber;

complexNumber addComplexNumbers(complex, complex);

int main() {
    complexNumber num1, num2, complexSum;
    char signOfImag;

    cout << "For 1st complex number," << endl;
    cout << "Enter real and imaginary parts respectively:" << endl;
    cin >> num1.real >> num1.imag;

    cout << endl
         << "For 2nd complex number," << endl;
    cout << "Enter real and imaginary parts respectively:" << endl;
    cin >> num2.real >> num2.imag;

    // Call add function and store result in complexSum
    complexSum = addComplexNumbers(num1, num2);

    // Use Ternary Operator to check the sign of the imaginary number
    signOfImag = (complexSum.imag > 0) ? '+' : '-';

    // Use Ternary Operator to adjust the sign of the imaginary number
    complexSum.imag = (complexSum.imag > 0) ? complexSum.imag : -complexSum.imag;

    cout << "Sum = " << complexSum.real << signOfImag << complexSum.imag << "i";

    return 0;
}

complexNumber addComplexNumbers(complex num1, complex num2) {
    complex temp;
    temp.real = num1.real + num2.real;
    temp.imag = num1.imag + num2.imag;
    return (temp);
}

Output

For 1st complex number,
Enter real and imaginary parts respectively:
3.4
5.5

For 2nd complex number
Enter real and imaginary parts respectively:
-4.5
-9.5
Sum = -1.1-4

Solutie

Tip solutie

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