Question about Texas Instruments TI-86 Calculator

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Posted on Jan 02, 2017

The calculator does not have a Computer Algebra System or CAS: It cannot handle non numerical quantities. Every letter symbol must have a value stored in it prior to being used. If no value is stored in a letter symbol, value 0 is assigned to it. Sorry.

As to calling Pi a variable, I would not got that far, even if the calculator would give me 2Pi.

TI calculators that have a CAS are the TI92 Plus, the Voyage 200 PLT, and the TI Nspire CAS, TI Nspire CX CAS.

As to calling Pi a variable, I would not got that far, even if the calculator would give me 2Pi.

TI calculators that have a CAS are the TI92 Plus, the Voyage 200 PLT, and the TI Nspire CAS, TI Nspire CX CAS.

Apr 14, 2012 | Texas Instruments TI-82 Calculator

Yes, your Ti 86 should solve square root problems. At the HOME screen press [CLEAR] [2nd] [x^2] which gives the (Square Root Symbol) to display at the Home screen. Then enter the number you want the square root of and close the bracket [ ) ] and, press the [ENTER] key.

You can even get the square root of complex numbers too. Select the correct complex format in the mode settings. For example: I'll do one in the rectangular form by enter a number as (a, b). I then will go to [2nd] [MODE] then [Arrow down] 3 times and make sure the RectC is highlighted and selected. Then quit out of the mode settings screen and enter [CLEAR] [2nd] [x^2] [ ( ] [9] [ , ] [ - ] [4] [ ) ] [ ) ] [ENTER], this displays the SQRT((9,-4)) equals (3, 2); The real part is 3 and the imaginary part 2.

You can even get the square root of complex numbers too. Select the correct complex format in the mode settings. For example: I'll do one in the rectangular form by enter a number as (a, b). I then will go to [2nd] [MODE] then [Arrow down] 3 times and make sure the RectC is highlighted and selected. Then quit out of the mode settings screen and enter [CLEAR] [2nd] [x^2] [ ( ] [9] [ , ] [ - ] [4] [ ) ] [ ) ] [ENTER], this displays the SQRT((9,-4)) equals (3, 2); The real part is 3 and the imaginary part 2.

Jan 09, 2011 | Texas Instruments TI-86 Calculator

Press 2nd [STAT] then select CLRDATA to clear statistics data. Select 1-VAR or 2-VAR for one-variable or two-variable statistics. Press DATA and enter your data (x for 1-VAR or x and y for 2-VAR). Press 2nd [EXIT-STAT] and select N. Press STAT-VAR to see a menu of statistics variables and their values. Sx (and Sy) will give you the standard deviation, sigma-x (and sigma-y) will give you the population standard deviation.

Dec 14, 2010 | Texas Instruments TI-30 XIIS Calculator

There is a built-in function called LU (for LU-decomposition of a matrix). You cannot have a variable with the same name as a function, regardless of case. You'll have to find a different name to use.

Nov 22, 2010 | Texas Instruments TI-86 Calculator

Press 2ND MEM 2 to get into the memory management menu. Press 1 for all variables or select the appropriate type. Scroll down if necessary to the variable X. Press DEL to delete it. Press 2ND QUIT to exit the memory management menu.

Jun 28, 2010 | Texas Instruments TI-83 Plus Calculator

To restore memory on a TI 84 to factory settings follow the directions on pages 108 and 109 of the instructions manual (TI 84 Plus Silver). Otherwise look in the index for RESET MEMORY to get the right page. Be sure you read the precaustions!!!!!!

Dec 12, 2009 | Texas Instruments TI-86 Calculator

Hello,

Clearly the x variable stores value zero. Press [F6] ( 1:clear a-z) [ENTER] and restart your derivative.

Hope it helps.

Clearly the x variable stores value zero. Press [F6] ( 1:clear a-z) [ENTER] and restart your derivative.

Hope it helps.

Sep 29, 2009 | Texas Instruments TI-89 Calculator

Hello,

I know that you can do 1 and 2 variable statstics, several kinds of regressions analyses, forecasting a value, make statistical graphs. I give you a link to the manual, which you will read to see if the calculator perfoms the calculations you refer to.

http://education.ti.com/educationportal/downloadcenter/SoftwareList.do?website=US&tabId=2&paneId=17

Hope it helps.

I know that you can do 1 and 2 variable statstics, several kinds of regressions analyses, forecasting a value, make statistical graphs. I give you a link to the manual, which you will read to see if the calculator perfoms the calculations you refer to.

http://education.ti.com/educationportal/downloadcenter/SoftwareList.do?website=US&tabId=2&paneId=17

Hope it helps.

Apr 15, 2009 | Texas Instruments TI-86 Calculator

Perhaps one of the following sources will be helpful:

To reset the TI-89 family, TI-92 family and Voyage 200 graphing calculators, press [2nd] [6] (reads MEM over the key). The [F1] menu appears and contains the following options:

Also, if you are looking to clear all the RAM in another way I would take a look at the guidebook, which is downloadable from the following site in PDF format.

http://education.ti.com/downloads/guidebooks/graphing/89ti/TI89TitaniumGuidebook_Part2_EN.pdf

Take a look at page 951 and 952 for another way to clear the RAM

To reset the TI-89 family, TI-92 family and Voyage 200 graphing calculators, press [2nd] [6] (reads MEM over the key). The [F1] menu appears and contains the following options:

**All RAM**- Clears all variables and programs from RAM only. This will not delete items from Archive or Apps.**Defaults**- Does not clear any files from the calculator. Instead, this option resets the calculator settings to default, including the Mode, Graph Format, Table Setup, and other settings.**Vars**- Clears all variables from Archive (Flash ROM). This option will NOT delete Apps or variables stored in RAM memory.**Apps**- Clears all Apps from Archive. This will not delete any variables.**Both**- Will clear all Apps and Variables from Archive. This will not delete any Variables from RAM.**All Memory**- Clears everything from RAM and Archive, leaving only the Calculator OS and its components.

Also, if you are looking to clear all the RAM in another way I would take a look at the guidebook, which is downloadable from the following site in PDF format.

http://education.ti.com/downloads/guidebooks/graphing/89ti/TI89TitaniumGuidebook_Part2_EN.pdf

Take a look at page 951 and 952 for another way to clear the RAM

Jan 29, 2009 | Texas Instruments TI-89 Calculator

You're trying to reference a variable or use a function where it is invalid. If you're still struggling with this, post a little more detail as to exactly what you're trying to plot.

Oct 17, 2007 | Texas Instruments TI-86 Calculator

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