Mathematics errors in basic C++ program
- by H Bomb1013
I am working with a basic C++ program to determine the area and perimeter of a rectangle. My program works fine for whole numbers but falls apart when I use any number with a decimal. I get the impression that I am leaving something out, but since I'm a complete beginner, I have no idea what.
Below is the source:
#include <iostream>
using namespace std;
int main()
{
// Declared variables
int length; // declares variable for length
int width; // declares variable for width
int area; // declares variable for area
int perimeter; // declares variable for perimeter
// Statements
cout << "Enter the length and the width of the rectangle: "; // states what information to enter
cin >> length >> width; // user input of length and width
cout << endl; // closes the input
area = length * width; // calculates area of rectangle
perimeter = 2 * (length + width); //calculates perimeter of rectangle
cout << "The area of the rectangle = " << area << " square units." <<endl; // displays the calculation of the area
cout << "The perimeter of the rectangle = " << perimeter << " units." << endl; // displays the calculation of the perimeter
system ("pause"); // REMOVE BEFORE RELEASE - testing purposes only
return 0;
}
