How do you Write a program that allows the user to input a number and compute for the sum difference product and quotient in simple way?

Answer 1

You cannot compute the sum, difference, product or quotient of a single number. All these operations are binary operations which means they require two operands, which we'll call aand b.

In pseudocode, our program will be something like the following:

input a

input b

print "sum = "

print a + b

print "difference = "

print a - b

print "product = "

print a * b

print "quotient = "

print a / b

This could be implemented in C++ as follows:

#include

int main (void) {

using namespace std;

double a, b;

cin >> a >> b;

cout << "Sum = " << a + b << endl;

cout << "Difference = " << a - b << endl;

cout << "Product = " << a * b << endl;

cout << "Quotient = " << a / b << endl;

}

This is as simple as it gets. A more robust program will take the input as a string and parse it accordingly, thus handling any input error more gracefully.