Press this button to experience the IntegerZone (there may be a delay while Java starts and/or the applet (~130k) downloads).
The integers are displayed in a simple rectangular grid. The grid can be scrolled up and down and resized. The user chooses a mode, and this defines their interaction with the integers. Some of the modes are for exploration, others help the user test their knowledge and calculation skills.
The built-in online help explains the various modes and what is expected of the user for each one.
Copyright © 1998, 1999 Philip Dorrell