CPP-Simple-Calculator/Calculator Basic Arithmetic.cpp at main · fAlc0n16/CPP-Simple-Calculator · GitHub

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#include<iostream>
#include<cmath>

int main(){

	char op;
	double num1, num2;
	double result;
	double exp;

	std::cout << "Welcome to the basic arithmetic calculator." << '\n';
	std::cout << " " << '\n';

	std::cout << "Choose your operator from the following:\n"
				 "+\n"
				 "-\n"
				 "*\n"
				 "/\n"
				 "^\n" << '\n';
	std::cin >> op;
	std::cout << " " << '\n';


	if(op == '^'){
				std::cout << "Enter the first number." << '\n';
				std::cin >> num1;
				std::cout << " " << '\n';

				std::cout << "Enter the exponent." << '\n';
				std::cin >> exp;
				std::cout << " " << '\n';

				result = pow(num1, exp);
				std::cout << "Result is " << result << '\n';
}

	else {

				std::cout << "Enter the first number." << '\n';
				std::cin >> num1;
				std::cout << " " << '\n';

				std::cout << "Enter the second number." << '\n';
				std::cin >> num2;
				std::cout << " " << '\n';

		switch(op){

			case '+':
				result = num1 + num2;
				std::cout << "Result is " << result << '\n';
			break;

			case '-':
				result = num1 - num2;
				std::cout << "Result is " << result << '\n';
			break;

			case '*':
				result = num1 * num2;
				std::cout << "Result is " << result << '\n';
			break;

			case '/':
				if(num2 != 0){
					result = num1 / num2;
					std::cout << "Result is " << result << '\n';
				}
				else {
					std::cout << "ERROR. DIVISION BY ZERO IS NOT ALLOWED";
				}
			break;

			default:
				std::cout << "Incorrect Operator. Chose from '+', '-', '*', '/', '^'.";
			break;

		}
}

	return 0;

}