Tech+Tips+and+Questions

First, try pressing the "esc" key a few times. If that doesn't work, I remove the face plate and a battery to turn the unit off. But then it takes a while to boot back up.
 * Simple user question: What is the fix when the hand held unit freezes?**

This document shows the CAS zeros command syntax and gives two examples to show how a CAS can be used to graph relations with a single command line on graph screens. This document is the tns file used in our first CAS meeting to demo the zeros command.
 * Graphing relations - The CAS "zeros" command.**