Thread: calclulator

i have done this code which can do add, sub, mul, div and square. But this much function is not sufficient for a calculator. I want to add one exponential function and one square root function. plz help me frens

Code:

#include <iostream>
   
int main()
{
    double num;
    double num2;
    char choice;
    for (;;){
     do {
      cout<<"\n";
    cout<<"Welcome to apex calculator.\n";
    cout<<"Please choose an option by entering the number, press q to quit\n";
    cout<<"1 - Addition\n";
    cout<<"2 - Subtraction\n";
    cout<<"3 - Division\n";
    cout<<"4 - Multiplication\n";
    cout<<"5 - Help\n";
    cout<<"6 - About This Program\n";
    cout<<"7 - find square\n";
     cin>>choice;
    } while ( choice < '1' || choice > '7' && choice != 'q');
    if (choice == 'q') break;
    switch (choice) {
           case '1':
                cout<<"Please enter a number\n";
                cin>>num;
                cout<<"Another number to be added\n";
                cin>>num2;
                cout<<num + num2;
                cout<<"\n";
                break;
           case '2':
                cout<<"Please enter a number\n";
                cin>>num;
                cout<<"Another number to be subtracted\n";
                cin>>num2;
                cout<<num - num2;
                cout<<"\n";
                break;
           case '3':
                cout<<"Please enter a number\n";
                cin>>num;
                cout<<"Another one to be divided\n";
                cin>>num2;
                cout<<num / num2;
                cout<<"\n";
                break;
           case '4':
                cout<<"Please enter a number\n";
                cin>>num;
                cout<<"Another one to be multiplied\n";
                cin>>num2;
                cout<<num * num2;
                cout<<"\n";
                break;
           case '5':
                cout<<"This is a simple calculator made by bishal, manoj, pramesh and ram\n";
                cout<<"To select an option, type the number next to the option and press enter\n";
                cout<<"E.G. for division, you would type 3 and press enter.\n";
                cout<<"\n";
                break;
           case '6':
                cout<<" apex calculator, made by bishal, manoj, pramesh and ram \n";
                                cout<<"\n";
                break;
           case '7':
           cout<<"please enter a number\n";
           cin>>num;
           cout<<"the square is \t "<<num*num;
           cout<<"\n";
           break;

           default:
                    cout<<"That is not an option";

                }

}
return 0;


}

no, i forget how to use pow syntax.

and what should i have to do to get square root?

is this the help that i get from here????

i need some guideness but you are telling me read it urself

Originally Posted by |>|?\-/|\/|-]§)

is this the help that i get from here????

i need some guideness but you are telling me read it urself

Your username is more difficult to type than to learn the pow() function. Seriously how do you do that?