C/C++ :: Rectangle Not Resizing Properly - Odd Multiplication Result

I'm having some issues understanding why the "rectangle" in the following code isn't resizing properly. Here's the code:

#include <iostream>
using namespace std;
class Rectangle {
public:
Rectangle(double w, double h, double f)
: width(w), height(h), factor(f)

[Code] .....

I tested the code with a simple multiplication factor of "2", which should result in a new width and height of 4, but instead I get an odd value that seems be close to 4.

Output:

Numerically enter the width of the rectangle: 1
Numerically enter the height of the rectangle: 1

The width of the rectangle is: 1
The height of the rectangle is: 1
The area of the rectangle is: 1
The perimeter of the rectangle is: 4

Numerically enter a number to resize the rectangle: 2

The width of the rectangle after resizing is: 2.07408e-317
The height of the rectangle after resizing is: 2.07408e-317