Troubleshooting

Mrs. Woodcocks Common TI84 Troubleshoot Guide

Issue	Try…
My calculator is “not working”…	·      Check the batteries. Are they in correctly? Are they dead? ·      Check the screen setting. Press 2nd up or down to adjust. Having the screen to light or dark can make it appear to not be on, when it is.
My calculator is giving “weird answers”	·      Reset your calculator so it is working just like Christmas Day when you opened it! Press 2nd, +, 7, 1, 2
My calculator is not showing the correlation coefficient.	·      Turn your Diagnostics ON! Press 2nd, 0, scroll to DiagnosticOn, press enter.
My calculator says ERR:SYNTAX	·      Press Quit if you know what you did, or press Goto, and calculator will find the error. ·      Most common error? Using the negative sign and subtraction sign incorrectly.
My calculator says a negative number squared is a negative. Why is it lying to me??	·      Order of Operations my friends! Put ( ) around your negative numbers!
Help! I deleted my L1, L2, etc…	·      To prevent this, when your List is highlighted, click CLEAR, NOT DELETE. ·      To fix, press STAT, 5, ENTER. Your missing Lists will reappear