To view the animations you will need to ensure that you have Java installed and enabled in your web browser.
If you are viewing the animations on an Apple computer you should use Firefox version 3.6.x as your browser.
Definition 3.27 on page 116 of Unit 3 of the Study Guide applies to Animations 1 (part a) and 2 (part b). Animations 3, 4, 5 and 6 should accompany Definition 3.19 which is on page 103 of Unit 3 of the Study Guide.
To view the tutorials you will need to install the latest version of the Flash Player on your computer.
The tutorials refer to the section in Unit 3 of the Study Guide entitled "Evaluation of the Limit" on page 147.