Question about Texas Instruments TI-84 Plus Calculator

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Lists Everytime i try to use the data i entered in some of my lists i get an error saying "invalid dim". the calculator doesnt recognize my lists for some reason. I may have deleted them by accident and tried to replace them but now they dont work

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Try pressing [STAT] [5] [ENTER]. If done correctly, the calculator will display "Done" on the home screen.

Posted on Aug 20, 2008


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I'm trying to find the equation for the line of best fit but every time I enter the data and and hit linreg, it tells me its invalid dim

Make sure the two lists have the same number of elements.

If you still have a problem, please reply to this post and give an example.

Aug 23, 2012 | Texas Instruments TI-84 Plus Calculator

1 Answer

Keep getting invalid dim

Hi scarfacecoke,

One of the statistical plot's may be on while your trying to do other functions. You can go to the y= editor / STAT editor and, turn them all OFF.

1). Press [CLEAR] at the Home screen

2). Press [2nd][Y=] Open's the (STAT PLOT) editor screen.

3). Press [4:PlotsOFF]

4). The PlotsOff Command should now display at the Home screen.

5). Press [ENTER] , Now the plots should be off are off

If you still have this error even after you turned off the plot you may have a list that is a invalid dimension. List dimensions can only be between 1 and 999. A matrix can only be between 1 and 99. Or your trying to invert a matrix that isn't square.

If you can't find the list that is causing you problem you can clear all the lists. To clear all the lists press [2nd] [MEM][4][ENTER] This should set all lists dimensions to 0.

Jan 12, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

When I try to graph, say y = x, I get an error message that says "invalid dim." The window settings are identical to another TI-73, so I'm not sure what the problem is. Can you help?

"invalid dim" could also mean that a list or, lists don't have the same dimensions or lengths. To fix this press [2nd][MEM][6][ENTER] -To clear out all the lists. Ti's instructions normally just has the user delete all memory instead of finding the exact problem. This can be done by being at the home screen and, by pressing [2nd] [Convert] [1][2][ENTER]. But, because I don't like starting all over everytime I preform a math process and, I like storing things into memory so I have to find the problem and fix it as I go a long.

To find such a problem as your's, I would look at x in the y= equation. It may be claiming that x is a list too. So you may want to [2nd][MEM][4] and then use the press [1] and find and highlight x and, press [ENTER] to delete it. It also might be a good idea before you start in the y= editor to press from the Home screen [2nd][MEM][4] and then press [4] and highlight the y= have equations and are not empty and, press [ENTER] to delete them. Then I would continue deleting all the y= equations too. Sure you can just make sure their off but, I'm not sure how advance of a user you are. On your calculator for the window settings to be a problem, you would have probably received a window range error.

Dec 31, 2010 | Texas Instruments TI-73 Explorer...

1 Answer

I am trying to find the Best Fit Line, or Linear Regression. But it keeps telling me ERROR:INVALID DIM

This means that the two lists containing your data do not contain the same number of points. If the data are not in L1 and L2, make sure you specify the two lists involved to the regression command.

Oct 21, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

Everytime I type my equation into the y= to graph it says invalid dim so I can not do anything.

You're probably trying to graph a function that does not involve stat plot features. You can correct this by turning off the stat plot features. Press "2ND" "STAT PLOT" and then select 4:PlotsOff.

If you are doing a stat plot (plotting data in two lists), make sure the lists are of the same size.

Oct 18, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

My calculator displays an error message, "ERr: Invalid DIM" when I try to run a LinRegTTest. X and Y are using the right lines of data, L1 and L2.

If the message you got is ERR:DIM MISMATCH 1:Quit, the two lists you are using do not have the same dimensions. One list is longer than the other.

Jan 27, 2010 | Texas Instruments TI-84 Plus Silver...

1 Answer

I am trying to enter a slope formula in the "y=" window, my lists are all cleared but everytime it goes to the graph it tells me "err invalid dim"

I d not understand what you mean by enter a slope formula, but I am going to assume you want to draw the graph of a function y= f(x) and you are having a problem.
  1. Press the STAT button and
  2. Select 4:PlotsOff
  3. Press ENTER
  4. Calculator displays DONE
  5. Now you can do your graphs.

Jan 14, 2010 | Texas Instruments TI-83 Plus Calculator

2 Answers

When graphing says ERR: INVALID DIM 1:Quit

You have two lists that don't agree in length.

Solution 1 (easy)

Press [y=] and look at the top line - one of your Plots is highlighted.
Move the arrow to the highlighted one, press enter to get it un-highlighted.

Solution 2 (permanent)

Press [STAT] - EDIT: [1] to edit your lists. Go to the bottom of the lists and see which one is the longest. Delete (DELETE, not clear) the "extra" entries in the longest list until all lists are the same length.

Oct 04, 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

Invalid DIM

If you've entered data into more than one list, one of your lists is longer than the other list.

May 16, 2009 | Texas Instruments TI-84 Plus Calculator

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