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Homework Help: Can someone help me fix my calculator?

  1. Jun 25, 2011 #1
    1. The problem statement, all variables and given/known data

    My TI-84 plus is messed up, is there any way to reset the settings without erasing my programs?

    edit: my graphing funciton only graphs one graph even though I imputed two.

    There is this weird black arrow and a rectangle in all of my Yn


    3. The attempt at a solution
     
  2. jcsd
  3. Jun 25, 2011 #2

    lewando

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    You should look into using TI ConnectTM. I think it can be used to backup any important data/programs.
     
  4. Jun 26, 2011 #3

    MATLABdude

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    You may have de-selected functions (see page 99 of the TI-84+ Manual--even if you have a TI-84, it should still apply)l:
    http://education.ti.com/guidebooks/graphing/84p/TI84PlusGuidebook_Part2_EN.pdf [Broken]
     
    Last edited by a moderator: May 5, 2017
  5. Jun 26, 2011 #4
    Nope it's not working, here is a picture of what it looks like. I drew it with hand so...

    [PLAIN]http://img845.imageshack.us/img845/1909/unledmbl.jpg [Broken]
     
    Last edited by a moderator: May 5, 2017
  6. Jul 3, 2011 #5
    Please...
     
  7. Jul 3, 2011 #6

    lewando

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    Have you tried MEM (2nd, +)> Reset > Defaults? This will preserve your programs.
     
  8. Jul 5, 2011 #7
    Not working still.
     
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