An electronic calculator is typically a portable electronic device used to perform calculations, ranging from basic arithmetic to complex mathematics. Calculators are widely used device nowadays. Calculators are used to everyone in daily life. A simple calculator can be made using a C++ program which can perform addition, subtraction, multiplication division and power Operation. It takes two operands entered by the user. The switch and break statements are used to create a calculator.

// C++ Program to make simple calculator

#include <iostream>

#include <conio.h>

using namespace std;

int main() {

                int a,b,sum,i,sum1,P;

                char op;

                cout << "Calculator (+,-,*,/,^)"<<endl;

                cout<<"Enter Expression: ";

                cin>>a>>op>>b;

                switch(op) {

                                case'+':

                                                sum=a+b;

                                                break;

                                case'-':

                                                sum=a-b;

                                                break;

                                case'*':

                                                sum=a*b;

                                                break;

                                case'/':

                                                sum=a/b;

                                                break;

                                case'^':

                                                P=a;

                                                for(i=1; i<b; i++) {

                                                                sum=(a*P);

                                                                P=P*a;

                                                }

                                                break;

                                default:

                                                break;

                }

                cout<<"Answer is: "<<sum<<endl;

                _getch();

}