Hello I am having an issue running physics made easy. I keep getting a memory then an undefined variable error. This is on my calculator. Any ideas?
Ans: Reason is very likely that your TI89s memory is filled up with preloaded apps .
Here is the simple solution in 3 steps:
1. Backup your TI89 if you wish (remember that preloaded apps can be downloaded freely at TI’s website any time)
2. Press 2nd 6 F1 , select reset all memory. ENTER
3. retransfer APP and all will be well!