Question about Texas Instruments TI-86 Calculator

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Hi,

The error 14 message is displayed when you perform calculations that involve a variable that is not defined. See the following script

2 STO-> A [ENTER] Calculator displays 2

(A+2)^2 [ENTER] Calculator displays 16

DelVar (A) [ENTER] Calculator displays Done

(A+2)^2 [ENTER] Calculator displays ERROR 14 UNDEFINED

What you may have defined then deleted, only YOU know. I suggest you reset the the calculator to defaults.

To reset calculator to defaults

Press [2nd][MEM][F3:Reset][2:Deflts][ENTER].

It will reset the calculator to its default configuration. When you select and confirm DFLTS, the default contrast is reset.

To adjust contrast,

- Press [2nd] release it.
- Press and HOLD [UpArrow] to darken or
- Press and HOLD [DownArrow] to lighten the screen.

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Posted on Dec 02, 2009

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The software for your calculator may need to be updated. You can get the update from the manufacture's website under the download or support tab.

Posted on Nov 16, 2009

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Posted on Jan 02, 2017

You're probably trying to graph a function that does not involve stat plot features. You can correct this by turning off the stat plot features. Press "2ND" "STAT PLOT" and then select 4:PlotsOff.

Oct 13, 2013 | Texas Instruments TI-86 Calculator

Instead of hitting the [table] button. You should hit the [stat] or
[stats] button as I forget which it is. Then hit [enter] which will
bring you to a stats list editor of some kind. You will want to enter
the data for your x-axis in L1 and the data for your y-axis in L2. Once
you have completed your lists, hit the [stat] button again and then
click [right] or the right arrow in order to move to the section of
calc. from number 4 down it will help create a graph of that type of
function. lets say you think it is linear, so you hit [enter] on number
4 and then you will be at the home screen with LinReg already written.
You just have to complete the statement and it will do it for you. hit
the [2nd] [1] and then the comma button, then [2nd] [2] and [enter].
that will do it for you.

Feb 14, 2011 | Texas Instruments TI-84 Plus Silver...

For the inverse natural log, press 2nd LN. For the inverse common log, press 2nd LOG.

For example, to calculate the inverse natural log of 2, press 2nd LN 2 ENTER and you'll get about 7.389 .

For example, to calculate the inverse natural log of 2, press 2nd LN 2 ENTER and you'll get about 7.389 .

Jan 25, 2011 | Texas Instruments TI-86 Calculator

You're probably trying to graph a function that does not involve stat plot features. You can correct this by turning off the stat plot features. Press "2ND" "STAT PLOT" and then select 4:PlotsOff.

You caon download a guidebook from http://education.ti.com

You caon download a guidebook from http://education.ti.com

Jul 21, 2010 | Texas Instruments TI-83 Plus Calculator

If the message appears when you try to graph functions deactivate the
statistical plots. To do so:

Press [2nd][Y=] to access (STAT PLOTs)

Select [4:PlotsOff] then [ENTER]

That should solve your problem. Post a comment to this thread if you still have trouble graphing.

If the message appears in another context, it sure would help knowing the context of the error.

Press [2nd][Y=] to access (STAT PLOTs)

Select [4:PlotsOff] then [ENTER]

That should solve your problem. Post a comment to this thread if you still have trouble graphing.

If the message appears in another context, it sure would help knowing the context of the error.

May 07, 2010 | Texas Instruments TI-83 Plus Calculator

Hello,

Sorry, but you information is wrong, to find the binomial distribution use the PROB menu not the STAT menu. Its name is randBi

[2nd][MATH][F2:PROB] scroll right.

Hope it helps.

Sorry, but you information is wrong, to find the binomial distribution use the PROB menu not the STAT menu. Its name is randBi

[2nd][MATH][F2:PROB] scroll right.

Hope it helps.

Oct 10, 2009 | Texas Instruments TI-86 Calculator

You're probably trying to graph a function that does not involve stat plot features. You can correct this by turning off the stat plot features.

Press GRAPH F1 to enter the equation editor.

Plot1 Plot2 Plot3 on the top line of the equation editor displays the on/off status of each stat plot. When a plot name is highlighted, the plot is on. To toggle the status, press up, left, and right to place the cursor on the name, then press ENTER.

Press GRAPH F1 to enter the equation editor.

Plot1 Plot2 Plot3 on the top line of the equation editor displays the on/off status of each stat plot. When a plot name is highlighted, the plot is on. To toggle the status, press up, left, and right to place the cursor on the name, then press ENTER.

Sep 30, 2009 | Texas Instruments TI-86 Calculator

Hello,

Use the stat menu. Enter 1st member of a pair in List1, Enter 2nd member of pair in List2. Graph the data as a scatter plot in stats plots.

Hope it helps.

Use the stat menu. Enter 1st member of a pair in List1, Enter 2nd member of pair in List2. Graph the data as a scatter plot in stats plots.

Hope it helps.

Jan 15, 2009 | Texas Instruments TI-86 Calculator

Texas Instruments TI-86 Statistics How-To Information
The following instructions should allow you to calculate the mean and standard deviation using a TI-86 calculator.

- Press STAT
- Select EDIT
- Enter data into a list: [2.32 ENTER 2.43 ENTER 2.39 ENTER, etc.] Continue until all data have been entered. (use arrows keys to go to the y value, if any)
- EXIT until you reach the main ("blank") screen. (If you try to calculate while you're in the data menu, it thinks you're still trying to enter data!)
- Press STAT
- Select CALC
- Select OneVa
- Select LIST, NAMES, xStat(F2), Press ENTER
- The calculator provides Max, Min, Mean, Standard Deviation, Sum, Sigma, etc. You will be primarily interested in the Mean and Standard Deviation (sx).

Nov 15, 2007 | Texas Instruments TI-86 Calculator

Most likely you're trying to graph a function while you have the stat plot turned on. Turn off the stat plot and try it again.

Oct 16, 2007 | Texas Instruments TI-86 Calculator

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Is there any other option?

Thanks for both of your guys' help! I actually took the software off and put it back on again twice before I got it to work. I don't know if somewhere in there the defaults were reset or what, but the equation itself didn't use any variables, so dunno. I'm baffled but happy. :) Thanks again for both of your responses!

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