Question about Texas Instruments TI-86 Calculator

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Hi,**It is still a great calculator and what it is doing now is not the result of a defect. **Rather, it** **is a configuration setting that someone has activated.

The calculator has three display modes for the numbers.

Standard 'normal', scientific and engineering. The calculator respects the user's choice as long as possible, but if the numbers are too small or two large it uses the scientific display format.

To set the 'normal' display format:

- Press [2nd][MODE]. On first line of screen that is displayed, make sure that Normal is highlighted. If it si not, use the arrow to move cursor on it and press [ENTER].
- Use arrow to move cursor to 2nd line. Highlight the number of decimal digits you want (0, 1, 2, ...,or 9) and press ENTER.
- Quit the MODE setting. From now on the calculator will use the 'normal' display format with the number of decimal digits you chose, until you change this setting again.
- However if the number displayed is too small or too large it will be display it in scientific exponential notation. Subsequent numbers that are not too small nor too large will obey the 'normal' format.

Posted on Nov 12, 2009

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Posted on Jan 02, 2017

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Glad to be of help.

Feb 17, 2010 | Texas Instruments TI-89 Calculator

remove the batteries, then re-install

Oct 28, 2009 | Texas Instruments TI-84 Plus Calculator

look under math calc and there should be an x^3 key

Sep 29, 2009 | Texas Instruments TI-86 Calculator

if you want to use your calc for this you would have to put it in as the operations to change the mixed to improper fraction i.e. input exactly as "((8*3)+6)*((3*7)+1)=" remember? take denominator times whole number plus numerator and put over denominator to convert from mixed to improper... hope this helps

Apr 08, 2009 | Texas Instruments TI-30X-IISTK Scientific...

If you want the answer in rectangular form, set MODE a+bi and tap ENTER and QUIT. Tap square root sign, tap (-)4 and close the parenthesis and tap ENTER. The answer is shown as 2i.

If you want the answer in polar form, set MODE to re^xi and and DEGREE. Tap ENTER and QUIT. Tap the square root sign, tap (-)4, close the parenthesis, and tap ENTER. The answer shown is 2e^90i. (2 at ninety degrees). If you selected RADIAN mode, the answer would be 2e^1.57i (2 at 1.57 radians; or 2 at pi/2 radians)

If you want the answer in polar form, set MODE to re^xi and and DEGREE. Tap ENTER and QUIT. Tap the square root sign, tap (-)4, close the parenthesis, and tap ENTER. The answer shown is 2e^90i. (2 at ninety degrees). If you selected RADIAN mode, the answer would be 2e^1.57i (2 at 1.57 radians; or 2 at pi/2 radians)

Mar 09, 2009 | Texas Instruments TI-86 Calculator

Hello,

Use the TIconnect or TIGraphlink software to reinstall the programs. You will find the programs in the TI Program archives.

ftp://ftp.ti.com/pub/graph-ti/calc-apps/86/.

Hope it helps

Use the TIconnect or TIGraphlink software to reinstall the programs. You will find the programs in the TI Program archives.

ftp://ftp.ti.com/pub/graph-ti/calc-apps/86/.

Hope it helps

Jan 18, 2009 | Texas Instruments TI-86 Calculator

go to:

mode

select DEGREE rather than RADIAN three lines down.

mode

select DEGREE rather than RADIAN three lines down.

Aug 20, 2008 | Texas Instruments TI-84 Plus Silver...

http://education.ti.com/downloads/guidebooks/graphing/84p/TI84PlusGuidebook_Part2_EN.pdf

Hope this helps. It's the guidebook - user manual for the TI84, good choice of calc

Regards, Luda

Hope this helps. It's the guidebook - user manual for the TI84, good choice of calc

Regards, Luda

Jul 02, 2008 | Texas Instruments Office Equipment &...

what are the parts of the calc screen?

May 17, 2008 | Texas Instruments TI-83 Plus 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

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