Answer to Question #180053 in C++ for sweet jonhy

Question

Create a calculator for complex number by creating a class of complex number with overloading all operators in it.(Operators: ++,--,+,-,/,*,>>,<<)

Answer 1

class Complex
{


    double real;
    double image;


public:


    void setReal(double re)
    {
        real = re;
    }


    void setImage(double im)
    {
        image = im;
    }


    double getReal() const
    {
        return real;
    }


    double getImage() const
    {
        return image;
    }


    Complex(double re, double im): real(re), image(im){}


    Complex operator+(Complex &complexNum)
    {
        complexNum.real = real + complexNum.real;
        complexNum.image = image + complexNum.image;
        return complexNum;
    }


    Complex operator-(Complex &complexNum)
    {


        complexNum.real = real - complexNum.real;
        complexNum.image = image - complexNum.image;
        return complexNum;
    }


    Complex operator*(Complex &complexNum)
    {
        double i, j;
        i = real * complexNum.real - image * complexNum.image;
        j = real * complexNum.image + complexNum.real * image;
        complexNum.real = i;
        complexNum.image = j;
        return complexNum;
    }


    Complex operator / (Complex& complexNum)
    {
        double i, j, k;
        k = real * real + complexNum.image * complexNum.image;
        i = (real * complexNum.real + image * complexNum.image) / k;
        j = (complexNum.real * image - real * complexNum.image) / k;
        real = i;
        image = j;
    return *this;
    }


    Complex operator ++()
    {
        real++;
        return *this;
    }


    Complex operator --()
    {
        real--;
        return *this;
    }


    friend ostream &operator<< (ostream &out, const Complex &complexNum)
    {
        if (complexNum.image < 0)
            out << complexNum.real << "+i(" << complexNum.image << ")\n";
        else
            out << complexNum.real << "+i" << complexNum.image << "\n";
        return out;
    }


    friend istream &operator>>(istream &in, Complex &complexNum)
    {
        cout << "Введите реальную часть: ";
        in >> complexNum.real;
        cout << "Введите мнимую часть: ";
        in >> complexNum.image;
        return in;
    }


};