Question about Texas Instruments TI-86 Calculator

# How do I adjuest the brightness on my TI-86 calculator

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### kakima

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Press and release the 2nd key and then press the up-arrow to darken or the down-arrow to lighten. Repeat as needed.

Posted on Sep 21, 2012

### Anonymous

Couldnt you just do 2nd up or down multiple times

Posted on Oct 25, 2008

### Anonymous

push the 2nd key and then the up arrow.
Jon

Posted on Mar 26, 2009

### kakima

SOURCE: TI-86 Calculator Problem

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.

Posted on Jan 19, 2010

### kakima

Three possibilities:

1) You entered an argument with an inappropriate dimension.

2) You entered a matrix or vector dimension < 1 or > 255 or a noninteger.

3) You attempted to invert a matrix that is not a square matrix.

If you need further help, please specify the exact problem you're trying to solve.

Posted on Feb 10, 2010

### kakima

Use the root function in the MATH MISC menu.

To find the 5th root of 32: enter 5 then the root function and then 32 and then ENTER to get 2.

Posted on Apr 06, 2010

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## Related Questions:

### How to calculate cube root on simple calculator

That depends on how simple a calculator. I'll give some examples below for calculating the cube root of 8.

On a TI-86, press 3 2nd [MATH] F5 MORE F4 8 ENTER

If the calculator has a "^" or "y^x" key, raise 8 to the 1/3 power. Again, on the TI-86, press 8 ^ ( 1 / 3 ) ENTER

If the calculator has a logarithm key, take the logarithm, divide it by three, then take the antilogarithm. Again, on the TI-86, press 2nd [e^x] ( ln 8 / 3 ) ENTER

On a slide rule, place the hairline over the number on the K scale and read the cube root on the D scale.

Jan 10, 2013 | Texas Instruments TI-86 Calculator

### Hos do I adjust the screen brightness?

Press and release the 2nd key and then press the up-arrow to darken or the down-arrow to lighten. Repeat as needed.

Sep 20, 2012 | Texas Instruments TI-86 Calculator

### What is the different between ti-86 and ti-83

The 86 has more memory. It also has some advanced calculus capabilities the 83 doesn't. However you're much more likely to see examples for the 83 in textbooks and other references.

TI-83:
http://www.ticalc.org/basics/calculators/ti-83.html

TI-83 Plus:
http://www.ticalc.org/basics/calculators/ti-83plus.html

TI-86:
http://www.ticalc.org/basics/calculators/ti-86.html

Aug 09, 2011 | Texas Instruments TI-86 Calculator

### Send program from one TI-86 to another TI-86

First, connect the two calculators with the unit-to-unit cable.

Prepare the receiving calculator: press 2ND [LINK] F2.

Select the item to send on the sending calculator: press 2ND [LINK] F1 F2. For each program you want to send, navigate to it using the up/down arrows and press F2. Press F1 to send.

Mar 18, 2010 | Texas Instruments TI-86 Calculator

### IT-86 Both batteries removed, now dead

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

Jan 18, 2009 | Texas Instruments TI-86 Calculator

### Cracked TI-86 screen

well this isn't looking to good for you? The TI 86 isn't made anymore, so I doubt you can get it replaced. your luck has kinda run dry. You are probably going to have to buy a new calculator. Sorry to be the barer of bad news. Good luck though.

Feb 05, 2008 | Texas Instruments TI-86 Calculator

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