Err: Invalid Dim on Ti-83 Plus: What causes it, and how can you get rid of it?

Tutoring high school math, you might use the TI-83 Plus. The tutor shares his finding about an error message he recently saw.

The other day, when trying to graph a function, the error message

ERR: INVALID DIM

appeared.

From what I’ve seen, turning off the Stat Plot, which happened to be on unintentionally, lets the user go ahead and graph. (To turn off the Stat Plot from the Y= screen, just arrow up to the one that’s active – Plot1, Plot2, or Plot3 – and press Enter.) However, the source of the message seems to be that, in the Stat Plot parameters, an empty list has been selected (for the Stat Plot that is turned on).

It’s hard for me to imagine how the situation arose, since I don’t believe there were any empty lists in the calculator. To test, I deleted the entries from one of the lists, so it was then empty. Next, I selected the empty list in one of the Stat Plots, then turned that Stat Plot on. When I tried to graph, sure enough, the error message ERR: INVALID DIM appeared.

HTH:)

Source:

ti.com

Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.

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