Beginning C# 3.0

7.5. Exercises

1. Write the loop code necessary to calculate the factorial of a number. For example, 5 factorial is written like this:

   5! = 5 * 4 * 3 * 2 * 1
   
   5! = 120

   You may assume that a variable named num is defined to hold the number to factor, and that a variable named i is used to control the loop.

2. Even though the solution shown for Exercise 1 produces correct answers, it has two hiccups in it. Can you determine what they are?

3. Given that one ounce equals 28.3495231 grams, write a loop that produces a table in a listbox that shows the conversion into grams for weights from one ounce through four pounds.

4. Look at the solution code for Exercise 3. Can you find a minor change that improves the code?

5. Assuming that a monetary asset grows by x percent each year, calculate how much the asset is worth at the end of n years (using simple interest).