The Browser Page

This site was designed for browsers and computers with the following capabilities
1) an 800x600 pixel display device,
2) Javascript execution capability,

Suggestions for working on this site.
1) If the text is too big for the window, a scroll bar will automatically appear. You can use it to view the remainder of the text. Occasionally, a scroll bar will appear when all of the text has been displayed except for a blank line.
2) If you must leave this site, select the "exit" item from the File menu. If you plan to return later, you may want to use the Bookmark button to set a bookmark to the page you are on. With the bookmark set, you may go directly to the designated page when you restart.
3) You may use the "index" page to jump directly to the topic of interest. This is helpful when you have already completed a sequence and you want to proceed to another without visiting all of the intervening pages.
4) Occasionaly, going to a new page may "reset" the "back button." If you want to go back to a pevious page when the "back button" is not enabled, select the "close" item from the File menu. This will close the page you are on and all subsequent pages and restore you to the previous page sequence. Be carefull not to select the "exit" item unless you want to stop completely and have set bookmarks if you plan to return.

Click to continue with the introduction to this site. Or return to the welcome page.


This is a list of items that pertains to the interactive problem solving. They supersede whatever is stated elsewhere at this site.

All occurances of the labels and names must be identical.  That is:
        1.  Case sensitivity, - John != john.
        2.  Delimeter sensitivity - multiword identifiers must always have
            the same number of blanks between the words. Big john != Big   john.

Do not use commas in numbers. That is, type 100000.00 - NOT 100,000.00.

You must use possessives to combine row and column names. So in the table below, use "little john's age", not "little john age"

|           | age |weight|
|little john| 12  | 130  |
|big john   | 14  | 110  |

Expressions must be "algebraic" not "English." That is:

	age + weight   - Yes
	add age to weight   - No