Question about Texas Instruments TI-84 Plus Calculator

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My TI 84 stopped working

I was doing some basic addition and subtraction sums while i was doing some solidworks stuff. i did a couple calculations, got the number and put it into solidworks when i came back to the calculator it stopped working it just locked up on the screen it was on. Wouldn't let me turn it off or anything. I pulled all the AAA batteries out and turned it back on the cursor is just black and doesn't blink. I pulled the little backup battery out and it had the same effect. is there anything i can do?

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SOURCE: TI-83 Plus silver edition won't turn on.

the screen may be at the lowest dim setting, try turning it on, then pressing the 2nd key and then hold the up key and see if anything appears, if not let me know and I will try to figure out something else, I own a 83, 84, and 89 so it shouldn't be too hard to figure out

Posted on Mar 23, 2008

SOURCE: how to restore applications on TI-84 Plus Calculator

Go onto, find the downloads column, and click on apps and operating systems. Then you can click on the different lists and find out which apps you accidentally deleted. You do this by (after clicking on it) looking under the "Pre-Loaded On" column. If you find the name of your calculator there, this is one application that was deleted. Hope this helps!

Posted on Aug 05, 2008

SOURCE: None of the buttons on my TI-84 Plus calculator are working.

The normal typing cursor

Posted on Sep 28, 2008

  • 8 Answers

SOURCE: Can you Factor on a TI-84? IF not, does the TI-89?

Well, to answer part of your question, yes... the TI-89 does factor like this. it is inputted like this:


Check the catalog in the TI-84 (which is 2nd-zero) and look under F for factor()

Posted on Jan 19, 2009

  • 93777 Answers

SOURCE: My TI-84 won't turn on. If I replace the

Remove all four AAA batteries. Press and hold down the ON key for at least ten seconds. Replace the batteries. Turn the calculator on.

Posted on May 17, 2010

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SOURCE: TI-84 Plus Silver Edt...unable to power up

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 that doesn't work, try a hard reset. Remove one of the four AAA batteries. Press and hold the ON key. While holding down the ON key, replace the battery.

Posted on May 24, 2010

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I have a TI-84 and when i put a negative number it appears Ans before how can change that?

Use the (-) key to the right of the decimal point key when entering a negative number. The - key to the right of the 6 key is for subtracting something from something else. In order to subtract from something, if you don't specify anything then the calculator uses the previous answer as designated by "Ans." The same thing happens with the + key for example, because it adds something to something else.

Feb 01, 2014 | Texas Instruments TI-84 Plus Silver...

1 Answer

I can't put a negative number in the matrix without a syntax error

Use the (-) key just to the right of the decimal point, not the - key. The second key is for subtraction.

Jan 27, 2013 | Texas Instruments TI-84 Plus Calculator

1 Answer

Is there a guide of how to use this calculator i do not under stand how to work this

Here's a link to a pdf of the manual. The basics are that you have 12 white keys near the bottom, which include the 10 digits, a decimal, and the negative sign. On the right, you have the four operating keys, division, multiplication, subtraction, and addition. You also have the Enter key which will solve the expression. You'll notice that the buttons have blue and green lettering above them, and those are for the 2nd and alphabet functions. So if you press the 2nd key on the top-left, then the on key in the bottom left, then it'll turn it off, because it also functions as the off key. The Alpha key is used to input letters which are in green above each number. Good luck!

Sep 01, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

When iam pressing the - sign it is not coming only - instead it is coming along with Ans and the - like this Ans- and the ans has some additional value in it which is creating problems in my calcuations....

The - key is for subtracting one value from another. If you press - at the beginning of a line, the calculator has to provide something to be subtracted from and thus provides the Ans. You'll notice that it does the same thing with +, for example.

If you want to enter a negative value, use the (-) key located just to the right of the decimal point key.

Jul 24, 2011 | Texas Instruments TI-84 Plus Silver...

3 Answers

How do input subscripts into a program with a TI-84 Plus? Like Y(sub 1)=y

Use the square brackets ("[" and "]"). They're the shifted functions of the multiply and subtract keys. For Y(sub 1) enter it as "Y[1]".

May 15, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

I cant figure out how to be able to take a fraction and subtract it to another fraction on my TI-84 PLUS calculator

Given two fractions a over b and c over d, you can subtract the first from the second by entering
( c / d ) - ( a / b ) ENTER

The calculator will give you a decimal result, which you can (probably) convert back to a fraction by using the >Frac command. Press MATH 1 ENTER

Feb 02, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

TI-84 plus silver edition. Syntax error on problems such as 8(-)5. How do I get rid of it?

If you want to subtract 5 from 8, enter it as 8 - 5.

The - key to the right of the 6 key is for subtraction, the (-) key to the right of the decimal point key is for entering negative values.

Nov 23, 2010 | Texas Instruments TI-84 Plus Silver...

1 Answer

Graphing function barely works (can enter a number on the y= and it will draw a line), but most buttons cause the >sin entry. Can do basic addition, subtraction, etc. Tried to reset by taking out all...


if you put y= 3 or something like that; than your going to get a line try y1= 2x+3 for y1 and y2= -2x-3 press graph select zoomstd you should see two line form a x and some point if it does that that you calculator is okay . If all else check your manual and find the reset button this cure 99.99% all problems

Oct 10, 2009 | Texas Instruments TI-84 Plus Silver...

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