Question about Casio JF-100TE Calculator

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How do you turn off this calculator.

I am trying to turn off this calculator and i dont know how.

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It is solar powred and will turn off by itself. Don't worry it doesn't cost anything.

Posted on Sep 10, 2008

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How to turn on math IO mode on a sharp EL-506W calculator?


For the WriteView calculators EL-W5xx, you press 2ndF MATH to open (SetUp). Select 2:Editor, then 0:view.

Mar 22, 2012 | Sharp Calculators

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Everytime i try to graph it say ERR: INVALID DIM and then below it, it say 1:Quit. i dont know how to fix this and i dont know where to enter the diminsions in. please help me! THANKS!


One of the statistical plots is still active and you must turn it OFF.
  1. Press [2nd][Y=] to open the (STAT PLOT) configuration screen.
  2. Press [4:PlotsOFF]
  3. The PlotsOff Command echoes on main calculator screen.
  4. Press [ENTER] to run command.
  5. Go back to [Y=] editor to edit the functions if necessary, then press [GRAPH].

Dec 17, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

I was using my ti-89 this morning and now as i try to use it wont turn on anymore i replaced all batteries but dont know why this isnt working


TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible.

If this doesn't do it, please reply to this post and we'll go on from there.

Sep 16, 2010 | Texas Instruments TI-89 Calculator

1 Answer

Calculator Wont Turn On


Having gone over a month with no response, I assume this is no longer a problem.

May 31, 2010 | Texas Instruments TI-84 Plus Silver...

1 Answer

When i turn on the calculator i get a dark screen and when i try to adjust the con trast it doesnt change


this is what i think you mean, if i diss-understood you (thought you mean something else) im sorry, then i dont know what to do
thats when you set your ti 84+ screen to very dark. this is how to solve it:
go and open mirage OS, and then just press the "-" (minus) button. the screen should get lighter.

Nov 23, 2009 | Texas Instruments TI-83 Plus Calculator

3 Answers

Ti-84 plus


this might seem weird.... but have you checked the brightness of your calculator? if someone was playing with it and set the brightness to 0 it wont seem like there is anything. if u press second then hold the up arrow key it will make the screen darker. I dont know if this will help you or not but i know some of my friends like to play pranks where they set the brightness really high.

Sep 24, 2008 | Texas Instruments TI-84 Plus Calculator

1 Answer

2 problems


check if it has a mode button, press mode then deg.

Apr 22, 2008 | Casio FX-300MS Calculator

1 Answer

TI 84 cant turn on


Sounds like your pc had a static charge that it discharged to your TI and that it fried something inside the TI. No warranty, No fix. You gotta buy a new one.

Apr 10, 2008 | Texas Instruments TI-84 Plus Silver...

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