Question about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator

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Graph and trace buttons don't work

At first, they just messed up and show a screen from a tetris program I installed. I deleted all the files that came with the tetris program and now pressing either button goes to a blank screen. I can enter values to be graphed, but the graph won't display anything except a cursor when I hold down an arrow key. I enter an equation on the graph such as x^4-3x^3+6x-1=0 into Y1 and Y2 and I get an "ERR; INVALID DIM" but no graph.

Please help I have TI-84 Plus even when i have all of the coordinates in, my graph doesn't work, it just says 'invalid dim"

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  • 32 Answers

This is probably because you have the stat plot on. You would need to go to y= and then go to the top where it says stat plot 1 and un highlight it if it is highligted. That should fix your problem.

Posted on Sep 22, 2008

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My Ti-84 has the submenus shades and poi trace. I somehow accidently used poi trace and it prevents me from just tracing along my graphs. I want to delete it as well as delete these submenus. I have looked...

You must Press the APPS button, Select Inequalz and press Enter. The new Screen prompts you continue, 2. Quit Inequal, 3 About.
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Oct 28, 2013 | Calculators

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Hi, I need to graph with my TI 83 but I've run into a problem when trying to enter the (x,y) points that need to be plotted. From the beginning, I push "STAT" and highlight where it says...

Turn calculator on. Press the STAT button. In the new screen that displays, press 5:SetUpEditor, then ENTER. The deleted lists will be restored. Any data that was in them will not be recovered.

Jul 26, 2011 | Texas Instruments TI-83 Plus Calculator

1 Answer

How to set up mode for graphing

To draw a graph, it helps if you know approximately where it is going to show up so that you can set up a window.
Try this:
Press the [Y=] button
Enter the following equation: 5*x^2-5*x (five x-squared minus five times x) by pressing the following calculator keys:
5 X (times) x^2 (x squared key) - (minus) 5 X (times) x (key labled x,t,n) in between the ALPHA and STAT keys
now press the zoom key and select #6 - ZStandard (this will give you a standard zoom)
You should see a parabola drawn on the screen.
If you enter in some equation and do not see it on the screen, you can try zooming out (zoom key) or setting up your display window, using the window key.
This is where it helps to know where your x and / or y intercepts are.
From there, you can use trace to move around the graph, 2nd+graph (table) to see your x and y intercepts.

Dec 22, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

Casio cfx-9850gb plus calculators's graph messed up

Press the RESET button on the back of the calculator. Use a starightened paper clip.

May 05, 2010 | Casio CFX 9850GB 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

2 Answers

I'm trying to graph a line. For the

Reset the memory to defaults and you will not get the error.
[2nd][MEM][7:Reset][Defaults] [2:Reset] [ENTER]. Press [CLEAR] and them [Y=] to enter the function. No need to set Zoom. Defaults work fine for y1= 4X+3.
Press [GRAPH].
Hope it helps

Sep 26, 2009 | Texas Instruments TI-83 Plus Calculator

2 Answers

Graph button won't graph, then it exits and put's a 4 instead ?

It seems that wires got crossed. I suggest you reset all RAM by the follwing steps
[2nd][MEM][7:Reset][1:All Ram][2:Reset][ENTER]
Ram cleared will be displayed on screen. [CLEAR] to go to the home screen.

If that does not solve your problem, reinstall the OS. Post a question on how to install OS, if you want, or read some of the posts on TI83/84/89 about same subject.

If nothing works, I am afraid you will have to repair the calculator.

Hope it helps.

Sep 05, 2009 | Texas Instruments TI-84 Plus Silver...

1 Answer

TI 84 Calculator has unwanted tabs at bottom of Y= screen.......?

ok, your calculator is running the program Inequalz
what you have to do is
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that should work

Jan 21, 2009 | Texas Instruments TI-84 Plus Silver...

1 Answer

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Hit 2nd then the Y= button and you'll get to the stat plots. make sure they are all turned off, sometimes random programs (ie. games) will turn on stat plots and screw up your other programs and graphs.

Sep 25, 2008 | Texas Instruments TI-84 Plus Silver...

1 Answer

Graphing function

see if u can do firmware update ok

Feb 05, 2008 | Texas Instruments TI-84 Plus Silver...

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