Question about Texas Instruments TI-83 Plus Calculator

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My TI-83 is all messed up

Everytime i turn on the calculator, there are lines missing. the first 2-4 lines are missing. is there something wrong with the screen? i tried opening the whole thing up and i realized there was nothing i can do cuz i dont know what to do, hehe. can you help?

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  • snoopy1uv Mar 04, 2008

    thanks. i guess i have to buy a new calculator. >.<

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Sorry to hear that you are having problems with your TI-83. The TI-83 is a discontinued calculator, so I really don't think that it can be repaired/replaced.

See TI's website below for more information:

http://epsstore.ti.com/OA_HTML/csksxvm.jsp?nSetId=71440&nUsePub=NO&jttst0=6_23871,23871,-1,0,&jtfm0=&etfm1=&jfn=ZGEE602C53EA628B70E47DD2DD6878A5ABD632AD5834DE8ADC18D66ABBC9F888CBF7FB517A0B05B0984776B37370A28975B2

Posted on Mar 04, 2008

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There's something wrong with my TI-83. When I'm typing up an equation it will randomly shut off. And when it's on it will have shown that the RAM was cleared. Now it sometimes takes like 5 presses of the...


Have you tried changing the batteries? I'd try that first thing. From your description, the problem sounds like you have low batteries. The RAM shouldn't clear itself when you turn the calculator on unless you tried to turn it on when the calculator didn't have any juice. The TI-83 has four AAA batteries and one CR1616 battery it uses for memory backup. The CR1616 isn't enough to power the calculator, just enough to keep your calculator from losing its RAM contents while the primary batteries are out. If you try to power the calculator on without primary batteries, the backup fails. However, the TI-8x line is usually pretty good about warning you when the batteries are low by displaying a big warning message when you turn it on about the batteries being low and a recommended change of batteries. It might not, though, so you really can't be sure until you try a fresh set of batteries. Good luck!

Apr 09, 2011 | Texas Instruments TI-83 Plus Calculator

1 Answer

My TI-83 calculator doesnt gives me the solutions for tangents that have a negative number. Ex. tan(-1) -5/2


Once you reset your calculator, everything should be fine. Sometimes your calculator's memory stores your cos, tan, and sin and messes up your calucations.T o reset your calculator:
  1. Press 2nd then MEM (which is above the + key)
  2. Press 7 to reset
  3. Press 2 for default
  4. Press 2 again to reset defaults
  5. Press enter
  6. Done.
You should be able to get the answer for that, which is 3.8935, in radians at least. :)

Mar 06, 2011 | Texas Instruments TI-83 Plus Calculator

1 Answer

My ti 83 will turn on when i press the clear thing but when i try to put something in nothing happens


Hi imagenius1,

You need to free up some memory. Try clearing your RAM memory. Your calculator should operate properly afterward.

Press [2nd] [MEM] [7] [1] [2]

If the steps above did not reset the memory to your Ti 83 family calculator try the procedures below.

Please be prepared to re-install the calculator's OS if you run through this process.

If you have a straight Ti 83 without the Plus or, Silver Edition label goto (Procedure 2) below. If your Ti calculator is a Ti 83 Plus or better goto (Procedure 1).


(Procedure 1).

  1. Try a new set of AAA batteries.

  2. Remove one of the AAA batteries. Press and hold the [CLEAR] key. While holding [CLEAR], reinsert the AAA battery and then turn the calculator on. The calculator should display the message "RAM Cleared". Release the [CLEAR] key and, then press [CLEAR] one more time to remove the message.

  1. Remove one of the AAA batteries. Press and hold the [DEL] key. While holding [DEL], reinsert the AAA battery and then turn the calculator on. The calculator should display "Waiting...Please install calculator software now". Follow the instructions for the TI-83 family or TI-84 Plus family to reinstall the calculator operating system.



  2. Steps to re-installing the operating system:
    ~Connect the TI Connectivity cable between the PC and the calculator.
    ~Click on Start >> Programs >> TI Tools >> TI Connect >> TI OSDownloader
    ~Follow the on-screen directions to reinstall the calculator's OS. If you could not install the new OS on your calculator goto step 4.


  3. Remove all of the batteries including the round lithium battery for 5 minutes. After the 5 minute period, reinsert all of the batteries and turn the calculator on. Adjust the contrast if necessary.

  4. If the above process did not reset your calculator. Try re-doing (Procedure 1) and, extend the time in step 4, by 5 minutes to 10 minutes before you put all the batteries back in the calculator.

(Procedure 2).


For a straight Ti 83 without the Plus or, Silver Edition label try the procedure below.


  1. Try a new set of AAA batteries.



  2. Remove one of the AAA batteries. Press and hold the [ON] key for 20 seconds. Reinsert the AAA battery and then turn the calculator on.


Jan 06, 2011 | Texas Instruments TI-83 Plus Calculator

1 Answer

My TI-83 plus say Cos(180) =-.598.. What is wrong?


Nothing's wrong with your calculator. The cosine of 180 radians is -.598...

If you want the cosine of 180 degrees, set the calculator's angle mode to degrees by pressing the MODE button, moving down to the third line, and selecting "Degree".

Oct 29, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

I ask my TI-83 Plus to calculate (-64)^(3/2) The TI-83 Plus says the answer is -512i, but I think the answer should be 512i. Is the calculator wrong or am I?


You're both right, in a way. (-64)^3 is -262144. The square root of that is +/- 512i. Take your choice as to the sign.

For what it's worth, the TI-84, TI-86, TI-89, and the HP 50g all go with the negative value.

Jan 24, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

Graph feature is not working on TI-83


you have one of your stat plots on that is what is messing it up. So either turn off the stat plots. Or just reset your calculator. hit 2nd then the plus (+) key then 7 then 1 then 2. Good luck

Nov 12, 2008 | Texas Instruments TI-83 Plus Calculator

1 Answer

Graphing Lists on TI-83


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

Oct 22, 2008 | Texas Instruments TI-82 Calculator

4 Answers

Jumbled Numbers/Pixels


I had the same problem but i finally found the solution i held my calculator at gun point and told it to stop messing with me.

Nov 11, 2007 | Texas Instruments TI-83 Plus Calculator

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Horizontal lines obstructing the second half of the ti 83 calculator screen, anyone know repair tips?


I had the same prob with vertical lines on the screen, and getting messed up when there was lots of numbers on the screen.

Solution: Change your batteries. Put some freshies in then adjust your contrast until you see the little black box. If you still have a problem with the lines, darken the screen until it's black (2nd up repeatedly) and let it sit for a couple minutes. Lighten your screen back to normal (2nd down) and turn off then turn her back on.

Jan 17, 2007 | Texas Instruments TI-83 Plus Calculator

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