Write a program that mimics a calculator. The program should take as input two integers and the operation to be performed. It should then output the numbers, the operator, and the result. For division, if the denominator is zero, output an appropriate message. Limit the supported operations to + -/ *and write an error message if the operator is not one of the supported operations. Here is some example output: 3 + 4 = 7 13 * 5 = 65 C++
Operations
In mathematics and computer science, an operation is an event that is carried out to satisfy a given task. Basic operations of a computer system are input, processing, output, storage, and control.
Basic Operators
An operator is a symbol that indicates an operation to be performed. We are familiar with operators in mathematics; operators used in computer programming are—in many ways—similar to mathematical operators.
Division Operator
We all learnt about division—and the division operator—in school. You probably know of both these symbols as representing division:
Modulus Operator
Modulus can be represented either as (mod or modulo) in computing operation. Modulus comes under arithmetic operations. Any number or variable which produces absolute value is modulus functionality. Magnitude of any function is totally changed by modulo operator as it changes even negative value to positive.
Operators
In the realm of programming, operators refer to the symbols that perform some function. They are tasked with instructing the compiler on the type of action that needs to be performed on the values passed as operands. Operators can be used in mathematical formulas and equations. In programming languages like Python, C, and Java, a variety of operators are defined.
Write a program that mimics a calculator. The program should take as input two integers and the operation to be performed. It should then output the numbers, the operator, and the result. For division, if the denominator is zero, output an appropriate message. Limit the supported operations to + -/ *and write an error message if the operator is not one of the supported operations. Here is some example output:
3 + 4 = 7
13 * 5 = 65
C++
#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
char op;
int numb1;
int numb2;
cout <<"Please input two values that will be calculated: ";
cin >> numb1 >> numb2;
cout <<"Please input the operator that will be used: ";
cin >> op;
cout << fixed << showpoint << setprecision(2);
switch(op)
{
case '+':
cout << numb1 << " + " << numb2 << " = " << numb1 + numb2;
break;
case '-':
cout << numb1 << " - " << numb2 << " = " << numb1 - numb2;
break;
case '*':
cout << numb1 << " * " << numb2 << " = " << numb1 * numb2;
break;
case '/':
if (numb2 == 0)
cout <<"ERROR! Dividing by 0 isn't allowed!";
else
cout << numb1 << " / " << numb2 << " = " << numb1 / numb2;
break;
default:
cout <<"ERROR! The operator you have chosen is incorrect!";
break;
}
return 0;
}
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