Simple Calculator in C++

This program is a simple calculator that performs addition, subtraction, multiplication, and division.

#include <iostream>

int main() {

    char op;

    double num1, num2;

    std::cout << "Enter operator (+, -, *, /): ";

    std::cin >> op;

    std::cout << "Enter two operands: ";

    std::cin >> num1 >> num2;

    switch(op) {

        case '+':

            std::cout << num1 + num2 << std::endl;

            break;

        case '-':

            std::cout << num1 - num2 << std::endl;

            break;

        case '*':

            std::cout << num1 * num2 << std::endl;

            break;

        case '/':

            if (num2 != 0)

                std::cout << num1 / num2 << std::endl;

            else

                std::cout << "Error! Division by zero." << std::endl;

            break;

        default:

            std::cout << "Invalid operator" << std::endl;

    }

    return 0;

}

Simple Calculator in C

This program is a simple calculator that performs addition, subtraction, multiplication, and division.

#include <stdio.h>

int main() {

    char op;ca

    double num1, num2;

    printf("Enter operator (+, -, *, /): ");

    scanf(" %c", &op);

    printf("Enter two operands: ");

    scanf("%lf %lf", &num1, &num2);

    switch(op) {

        case '+':

            printf("%.2lf\n", num1 + num2);

            break;

        case '-':

            printf("%.2lf\n", num1 - num2);

            break;

        case '*':

            printf("%.2lf\n", num1 * num2);

            break;

        case '/':

            if (num2 != 0)

                printf("%.2lf\n", num1 / num2);

            else

                printf("Error! Division by zero.\n");

            break;

        default:

            printf("Invalid operator\n");

    }

    return 0;

}

Simple Calculator in Python

  This program is a simple calculator that performs addition, subtraction, multiplication, and division.

op = input("Enter operator (+, -, *, /): ")

num1 = float(input("Enter first number: "))

num2 = float(input("Enter second number: "))

if op == '+':

    print(num1 + num2)

elif op == '-':

    print(num1 - num2)

elif op == '*':

    print(num1 * num2)

elif op == '/':

    if num2 != 0:

        print(num1 / num2)

    else:

        print("Error! Division by zero.")

else:

    print("Invalid operator")