Question about Texas Instruments TI-89 Calculator

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I want to get preos browser

I had preos browser and for some reason i can't access it anymore can u help me

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Try this: PreOS on ticalc.org

You can transfer it with TiLP or one of TI's programs (TI Connect or Graph Link, google them if you need). This should reinstall PreOS or put it back on if it got deleted.

Posted on Sep 26, 2009

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When i ask to solve it wont let me


If it is not accessible (grayed out) then the context is inappropriate. The reason could be the misuse of the verb solve. A lot of people confuse calculate with solve.
If you care to tell us what you were trying to do, exactly, maybe we can help.

Nov 12, 2013 | Texas Instruments TI-Nspire Graphic...

1 Answer

How do I get from degrees to radians? For some reason my TI-84 will not convert degrees to radians.


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Press the [MODE] key to access the mode comfiguration screen .
Set angle unit to to radian (see above)
Enter angle value in Decimal degrees only, use the [2nd][ANGLE] key sequence to have access to the degree symbol. The degree symbol must imperatively appear at the end of the angle value.

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Here are some examples
If you use angle values in DMS, it will not be converted to radians, but to decimal degrees.
If you omit the degree symbol there is no conversion.

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A general formula is Pi radians =180 degrees
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Feb 10, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

Matrix


Here is copy of the answer I posted to a question on how to use Matrices. Read it carefully. It helped a few people, and there is no reason why it should not help you too. If after a bona fide effort to understand it you still have a problem, post a comment here. What I am saying, is do not just shoot the answer, try it first.

First you must set Matrix calculation
[MODE][6:Matrix].
  1. Then By entering one of the numbers [1:MatA] or [2:MatB] or [3:MatC] you get to choose the dimensions of the matrix (mxn)
  2. Once finished entering the matrix you clear the screen.
The operations on a single matrix are available by pressing[Shift][Matrix]. They are
  • [1:Dim] to change the dimension of a matrix (in fact redefining the matrix)
  • [2:Data] enter values in a matrix
  • [3:MatA] access Matrix A
  • [4:Matb] access Matrix B
  • [5:MatC] access matrix C
  • [6:MatAns] access the Answer Matrix (the last matrix calculated)
  • [7:det] Calculate the determinant of a matrix already defined
  • [8:Trn] The transpose of a matrix already defined
Operations involving 2 matrices
  1. To add matrices: MatA+MatB
  2. To subtract: MatA-Matb
  3. To multiply: MatAxMatB
  4. To raise a matrix to a power 2 [x2], cube [x3]
  5. To obtain inverse of MatA already defined MatA[x-1] where [x-1] is the x to the power -1 key
Dimensions of matrices involved in operations must match (see you textbook for the rules). Read the appendix to your user manual, there are several examples.

Jan 07, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

Need to reset display on a casio 115es so only the zero shows up.


Press [SHIFT][MODE] to access (SETUP). Select [6:Fix]. then enter a number between 0 and 9. That will determine how many decimal digits the display will show. Entering 2 or 3 seems reasonable.

Dec 18, 2009 | Casio FX-115ES Scientific Calculator

1 Answer

How to use matrix in calculater i know to inter in matrix mode but only one data can be inter for eg: {1 1} but i cant 2nd one and muntuply it { 1 2}


Here is copy of the answer I posted to a question on how to use Matrices. Read it carefully. It helped a few people, and there is no reason why it should not help you too. If after a bona fide effort to understand it you still have a problem, post a comment here. What I am saying, is do not just shoot the answer, try it first.

First you must set Matrix calculation
[MODE][6:Matrix].
  1. Then By entering one of the numbers [1:MatA] or [2:Matb] or [3:MatC] you get to choose the dimensions of the matrix (mxn)
  2. Once finished entering the matrix you clear the screen.

The operations on a single matrix are available by pressing[Shift][Matrix]. They are
  • [1:Dim] to change the dimension of a matrix (in fact redefining the matrix)
  • [2:Data] enter values in a matrix
  • [3:MatA] access Matrix A
  • [4:Matb] access Matrix B
  • [5:MatC] access matrix C
  • [6:MatAns] access the Answer Matrix (the last matrix calculated)
  • [7:det] Calculate the determinant of a matrix already defined
  • [8:Trn] The transpose of a matrix already defined
Operations involving 2 matrices
  1. To add matrices: MatA+MatB
  2. To subtract: MatA-Matb
  3. To multiply: MatAxMatB
  4. To raise a matrix to a power 2 [x2], cube [x3]
  5. To obtain inverse of MatA already defined MatA[x-1] where [x-1] is the x to the power -1 key
Dimensions of matrices involved in operations must match (see you textbook for the rules). Read the appendix to your user manual, there are several examples.
Hope helps

Dec 17, 2009 | Casio FX-115ES Scientific Calculator

1 Answer

MY CALCULATOR IS NOT WORKING ANYMORE BUT IF I PUT IT THROUGH TH LIGHT IT WORKS,,BUT I CANT DO IT ANYMORE,PLS HELP OR MAYBE ILL GO BUY NEW ONE..LOL


Hi:

if puttin it to the light makes it work than what you got is some dead batteries you need to replace . Check the back cover and see what batteries your calculator need to be replace it with; than go to the watch repair dept in walmart or meijers buy two batteries and have them take off the back cover and remove the old batteries and replace them with new put your back cover on and your calculator will work as good as new.

Oct 07, 2009 | Calculators

1 Answer

Deleted OS


Hello,
Here is what the Texas Instruments Knowledge Base has to say about reinstalling the OS. Please read it till the end.

What steps are required to reinstall the TI-Nspire family operating system?

To reload the device’s OS using a computer with TI-Nspire Computer Link:
• Connect the TI-Nspire device (with the Nspire keypad) to the computer using the USB Standard A to Mini B cable.
• Open the TI-Nspire Computer Link software. The select device dialog should appear, and detect the device.
• Either drag the OS file (available in the ‘downloads’ area at education.ti.com) onto the TI-Nspire File Browser portion of the window, or click Tools -> Install OS.

To reload the device’s OS using another TI-Nspire or TI-Nspire CAS device:
• Connect the two devices using the USB Mini A to Mini B cable. The end marked A should be inserted into the sending unit, while the end marked B should be inserted into the receiving unit.
• On the sending unit, access the document chooser by pressing [Home] [7]. Once in the document chooser, press [Menu] and choose 9:Send OS…
NOTE: Users can only send an OS to a unit of the same model. Users cannot send an OS from a TI-Nspire to a TI-Nspire CAS.
Please see the TI-Nspire guidebooks for additional information.

Mar 23, 2009 | Texas Instruments TI-Nspire Graphic...

1 Answer

The calculator fell, after which it mon't display anymore.


Hello,
If you are lucky, the fall may have displaced the batteries inside so that electrical contact is no longer being made. Reseat the batteries and problem may disappear.
Hope it helps.

Dec 26, 2008 | Casio FX-300MS Calculator

1 Answer

TI-81 manual


  1. Right click the link below
  2. Click Save-As
  3. Save to Desktop, or other location on your computer
  4. Enjoy

http://education.ti.com/downloads/guidebooks/graphing/81/81$bookeng.pdf

Nov 07, 2008 | Texas Instruments TI-81 Calculator

3 Answers

My Ti83 silver edition will not turn on.


I'm not sure if this will help you patchesb7; it sounds like your calculator is having issues :(
This will help others whose calculators suddenly won't turn on anymore, even after changing the batteries.

Note:
This will return the calculator to the way it was when you got it out of the package. Any data or programs have stored since will be lost.

Step 1: Remove all four AAA batteries.

Note: You will have to hold down the CLEAR button while doing Steps 2 and 3. Do not let go until after you have pushed ON in Step 3. I found this easiest to do by holding the calculator upside in my left hand with my pointer finger holding the CLEAR button so the ON button was easier to access.

Step 2: Hold down the CLEAR button (located under the arrow keys) and reinstall the AAA batteries.

Step 3: Press ON button and then let go of both buttons. The screen should say the RAM has been cleared. Press CLEAR to continue.


Aug 24, 2008 | Texas Instruments TI-83 Plus Calculator

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