c++复数运算符重载

C++复数运算符重载可以让我们自定义复数类型之间的运算，使得代码更加简洁易读。下面是一个复数类的例子，演示了如何重载加法运算符：

#include <iostream>
using namespace std;

class Complex {
   private:
    double real;
    double imag;

   public:
    Complex(double r = 0, double i = 0) : real(r), imag(i) {}

    Complex operator+(const Complex& c) {
        return Complex(real + c.real, imag + c.imag);
    }

    void display() { cout << real << "+" << imag << "i" << endl; }
};

int main() {
    Complex c1(3, 4), c2(5, 6), sum;
    sum = c1 + c2;
    sum.display(); // 输出：8+10i
    return 0;
}

在上面的例子中，我们定义了一个复数类`Complex`，并重载了加法运算符`+`。在`operator+`函数中，我们定义了一个新的复数对象，其实部为两个复数对象的实部之和，虚部为两个复数对象的虚部之和。这样，我们就可以直接使用`+`运算符对两个复数对象进行相加了。

相关问题

c++复数类运算符重载

C++中的复数类可以通过运算符重载实现复数的加减乘除等运算。以下是一个示例代码，演示了如何重载复数类的运算符：

#include <iostream>
using namespace std;

class Complex {
private:
    double real;
    double imag;

public:
    Complex(double r = 0, double i = 0) : real(r), imag(i) {}

    Complex operator+(const Complex& other) const {
        return Complex(real + other.real, imag + other.imag);
    }

    Complex operator-(const Complex& other) const {
        return Complex(real - other.real, imag - other.imag);
    }

    Complex operator*(const Complex& other) const {
        return Complex(real * other.real - imag * other.imag, real * other.imag + imag * other.real);
    }

    Complex operator/(const Complex& other) const {
        double denominator = other.real * other.real + other.imag * other.imag;
        return Complex((real * other.real + imag * other.imag) / denominator, (imag * other.real - real * other.imag) / denominator);
    }

    friend ostream& operator<<(ostream& os, const Complex& c) {
        os << c.real << " + " << c.imag << "i";
        return os;
    }
};

int main() {
    Complex c1(1, 2);
    Complex c2(3, 4);

    cout << "c1 = " << c1 << endl;
    cout << "c2 = " << c2 << endl << endl;

    cout << "c1 + c2 = " << c1 + c2 << endl;
    cout << "c1 - c2 = " << c1 - c2 << endl;
    cout << "c1 * c2 = " << c1 * c2 << endl;
    cout << "c1 / c2 = " << c1 / c2 << endl;

    return 0;
}

在上述代码中，我们重载了复数类的加、减、乘、除四个运算符，通过重载运算符实现了复数的运算。同时，我们还重载了输出运算符，用于输出复数对象的值。

c++重载运算符复数

在 C++ 中，可以通过重载运算符来定义复数类型的加法、减法、乘法和除法等运算。以下是一个示例代码：

#include <iostream>

using namespace std;

class Complex {
private:
    double real, imag;
public:
    Complex(double r = 0, double i = 0) : real(r), imag(i) {}

    Complex operator+(const Complex& c) const {
        return Complex(real + c.real, imag + c.imag);
    }

    Complex operator-(const Complex& c) const {
        return Complex(real - c.real, imag - c.imag);
    }

    Complex operator*(const Complex& c) const {
        return Complex(real * c.real - imag * c.imag, real * c.imag + imag * c.real);
    }

    Complex operator/(const Complex& c) const {
        double denominator = c.real * c.real + c.imag * c.imag;
        return Complex((real * c.real + imag * c.imag) / denominator, (imag * c.real - real * c.imag) / denominator);
    }

    friend ostream& operator<<(ostream& os, const Complex& c) {
        os << c.real << "+" << c.imag << "i";
        return os;
    }
};

int main() {
    Complex c1(1, 2), c2(2, 3);
    cout << "c1=" << c1 << endl;
    cout << "c2=" << c2 << endl;
    cout << "c1+c2=" << c1 + c2 << endl;
    cout << "c1-c2=" << c1 - c2 << endl;
    cout << "c1*c2=" << c1 * c2 << endl;
    cout << "c1/c2=" << c1 / c2 << endl;

    return 0;
}

在上述代码中，我们定义了一个名为 Complex 的类，用于表示复数。该类包含了两个私有成员变量 real 和 imag，分别表示实部和虚部。我们重载了加法运算符 operator+、减法运算符 operator-、乘法运算符 operator* 和除法运算符 operator/，并且实现了一个友元函数 operator<<，用于输出复数类型。

在主函数中，我们创建了两个复数对象 c1 和 c2，然后进行加、减、乘、除等运算，并输出结果。