Math Calculator Help

Desmos

Click the Desmos logo to the right to access the app!

Here are some helpful Desmos resources:

Visit the TI website
Guidebook for the TI-84
How to do complex numbers on different TI calculators
Basic regression directions
How to do regression with multiple lists
If your TI-84 will only graph one function at a time, go to APPS, Transform, Uninstall.
If you are missing a list, such as L1 or L2, go to STAT, EDIT, 5:SetUpEditor.
If you would like to see the correlation coefficient (R value) for a regression, go to your catalog (2nd 0) and scroll down until you see DiagnosticsOn. Select it, then push Enter.
If you get an Invalid Dim error or a Dim Mismatch error, either double check your data entry in your Stat Lists or turn your Plots off.

Click here for Mathematics online and video resources!

Click here for helpful math handouts!

Marcia Frobish
Math and Stats Tutoring Center Director
[email protected]
(616) 331-8690

Page last modified January 9, 2026