Question about Texas Instruments TI-82 Calculator

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Graphing Lists on TI-83

I need to graph points on my Texas Instrument 83 Plus

but everytime I try, it ends up DIM MISMATCH

what do i need to do?
what is wrong?

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Make sure you have the same number of points in the two lists.

Posted on Feb 18, 2010


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1 Answer


The calculator is trying to graph points in a list and they are either empty or not the same length.

If you do not want to graph points in a list, go to 2nd, Y= and turn each of the three plots off.

If you are trying to graph points in a list, check that you entered them correctly, they are not the same length, and then check that in the StatPlot menu you are asking the calculator to graph the correct lists.

Feb 23, 2011 | Texas Instruments TI-83 Plus Calculator

1 Answer

I;m trying to do lin reg and my TI-83 PLUS keeps saying ERR:DIM MISMATCH

LinReg uses two Lists, they must contain the same number of elements. If you are using LinReg with no arguments the Lists are L1 and L2.

Nov 02, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

Error message:

If you were trying to do paired-variable statistics the lists fo not have the same length, Check you lists and make sure they have the same number of elements.
If you were trying to draw graohs and you got this message, then you should turn StatPlots OFF. To do so press
Press [2nd][CATALOG] C. In the list of commands that appear scroll down a bit to reach ClrAllLists. Point to it and press [ENTER][ENTER]. Calculator displays Done.
Restart you graphs.
If you were using matrices, the dimensions may be incompatible for the operation.

If you had spelled what you were doing prior to the error message, I would not have had to guess.
Hope it helps.

Nov 13, 2009 | Texas Instruments TI-83 Plus Calculator

2 Answers

Cannot graph invalid dim error

This error show up when you are graphing out of the plot menu. If you are not graphing data points from list menu, you need to turn the plots off. In the y= screen, you will see the words plot 1, plot 2, etc across the top of the screen. If one of the plots is highlighted (black box over the words), you need to turn it off. This can be done by arrowing up and highlighting the box and pressing enter. When you arrow back down, the plot should be off and you will be able to enter an equation in the y= lines and graph.

If you are graphing from the plot menu, this error lets you know that one of the lists you are graphing is longer than the other.

Another way to fix the problem is to reset the calculator by pressing 2nd button then plus sign then 7 then 1 then 2. This will reset the calculator however if you are graphing from lists, your data will be erased. Hope this helps.

Oct 02, 2009 | Texas Instruments TI-83 Plus Calculator

1 Answer

Dim Mismatch

That is because you don't have the right amount of points. Either delete one point or add another point. Then try to graph it.

Jan 10, 2009 | Texas Instruments TI-84 Plus Silver...

6 Answers


You can't simply enter 7x+9=30 into the calculator, there is a way to calculate what the x is but its been a few years since I've done these..

Oct 03, 2008 | Texas Instruments TI-83 Plus Calculator

1 Answer


Well it seems that you are graphing stat points and forgot to turn them off. This can be easily fixed by going to 2nd and Stat Plot then make sure all the stat plots are turned off. This should solve your issue.

Sep 03, 2008 | Texas Instruments TI-83 Plus Calculator

1 Answer

Maths graphing

Reset the RAM and try again. To reset RAM press [2nd][MEM][7:Reset] [All RAM] [2:Reset]
Hope it helps.

Apr 04, 2008 | Texas Instruments TI-83 Plus Silver...

1 Answer


Press STAT, go to Edit, then enter x values in L1 and y values in L2 (other lists can be used too, but these are the default ones).

Next, go to STAT PLOT, pick a plot, turn it on, select the type, data lists (x and y should be L! and L2 already; if not, change them), and mark type.

Finally, hit graph. You may need to adjust window settings to see all of the points. If you get a DIM MISMATCH error, check to make sure that there are the same number of entries in each list, and that only the plots that you are using are turned on.

Oct 25, 2007 | Texas Instruments TI-84 Plus Calculator

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