Appendix C. Something went wrong

In an ideal world, everything would work the first time. Sadly, we don’t live in a perfect world, and your graphing calculator is no exception. Although the TI-83 Plus and TI-84 Plus-family calculators are designed to be resilient to you making mistakes, you’ll occasionally find yourself with errors that you don’t know how to fix. This appendix is designed to help you out of these jams. There are two broad categories of problems you might encounter while trying to use your calculator.

The first category encompasses “big” problems: the calculator won’t turn on at all, you can’t type anything, or the math you’re performing is returning nonsensical answers. The calculator can’t provide any feedback to help you ...

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