Question about Texas Instruments TI-84 Plus Calculator

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- Enter the data using the [STAT][EDIT].
- Once you finish populating your lists, press [STAT] button.
- Three menu options are displayed EDIT, CALC, TESTS
- Use right arrow to highlight CALC Menu.
- Use DownArrow to scroll down the list to reach [C:SINEREG] or press Press [ALPHA][C:SineREG].
- The command will echo on main screen.
- Specify the lists to be used for the 2-var data and Press[ENTER] to execute command.

Posted on Sep 30, 2010

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Posted on Jan 02, 2017

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The function keys originally have twp functions: One function accessed by pressing a function key directly, the other by first pressing the 2nd key then the function key.

With the newer operating systems, there is a third function associated with the function keys F1.F2,F3 and F4, but not F5 nor F6. This third function is revealed after you press the ALPHA key.

With the newer operating systems, there is a third function associated with the function keys F1.F2,F3 and F4, but not F5 nor F6. This third function is revealed after you press the ALPHA key.

Jul 25, 2012 | Texas Instruments TI-84 Plus Calculator

Restore the L1 list. Press STAT and select the option 5:SetUpEditor and press ENTER. By default the Xlist is always L1. But if you deleted it and did not restore it as described above, you can still specify the Xlist and YList .

Notice the capital A on line XLIST. It means that the ALPHA keyboard is active. Press the ALPHA key to deactivate it. Now press 2nd 1 to enter L1, 2nd 2 to enter L2, etc.

If you wnat to save the regression equation, enter a function variable name at the line Store RegEQ: . Press VARS>Y-VaRs>1:Function>1:Y1 or another function name.

When finished press the CALCULATE option. After it is stored the regression equation can be drawn on the same screen as the scatter plot.

Notice the capital A on line XLIST. It means that the ALPHA keyboard is active. Press the ALPHA key to deactivate it. Now press 2nd 1 to enter L1, 2nd 2 to enter L2, etc.

If you wnat to save the regression equation, enter a function variable name at the line Store RegEQ: . Press VARS>Y-VaRs>1:Function>1:Y1 or another function name.

When finished press the CALCULATE option. After it is stored the regression equation can be drawn on the same screen as the scatter plot.

Sep 19, 2011 | Texas Instruments TI-84 Plus Calculator

FN key is to be used in combination with the function keys like F1, F2 , F3 and so on to launch or initiate a specific function on your computer and utilities or features that came with in.

Dec 31, 2010 | HP P2360AA Keyboard/Mouse

I was having the same problem. Whenever I hit the graph button after a linear function was entered in Y1 I would get a screen that said "ERR: INVALID DIM 1:Quit"

I messed with a lot of settings but ended up returning settings back to default. The thing that fixed the calculator's ability to graph was UN-highlighting the Plot1, Plot2, and Plot3 words. If they are white on black they are highlighted. If the words are black then they are UN-highlighted.

To UN-highlight Plot1, Plot2, Plot3, do this: move the cursor up to the highlighted Plot1 and hit "enter." Notice the difference? Now do the same to the others and see if it fixes your problem like it fixed mine.

good luck.

I messed with a lot of settings but ended up returning settings back to default. The thing that fixed the calculator's ability to graph was UN-highlighting the Plot1, Plot2, and Plot3 words. If they are white on black they are highlighted. If the words are black then they are UN-highlighted.

To UN-highlight Plot1, Plot2, Plot3, do this: move the cursor up to the highlighted Plot1 and hit "enter." Notice the difference? Now do the same to the others and see if it fixes your problem like it fixed mine.

good luck.

Dec 02, 2010 | Texas Instruments TI-83 Plus Silver...

your value is not within the domain of the function, that is why it's giving you that error message, try the value times -1, or -(your value)

May 01, 2010 | Texas Instruments TI-89 Calculator

You can change the settings by going to BIOS. To go to BIOS, restart the system and as soon as you restart, start tapping the <F2> key located on the keyboard. This will take you to BIOS.

You can use the Function Key Behavior setting in the System Setup (BIOS) utility to configure the media control keys. The options in the Function Key Behaviour setting are:

Multimedia Key First - This is the default option. Press any multimedia key directly. For function key, press <Fn> + the required function key.

Function Key First - Press any function key directly. For multimedia key, press <Fn> + the required multimedia key.

You can use the Function Key Behavior setting in the System Setup (BIOS) utility to configure the media control keys. The options in the Function Key Behaviour setting are:

Multimedia Key First - This is the default option. Press any multimedia key directly. For function key, press <Fn> + the required function key.

Function Key First - Press any function key directly. For multimedia key, press <Fn> + the required multimedia key.

Nov 01, 2009 | Dell Inspiron 1545 Notebook

Hello,

Th CFX-9850GB Plus is programmed to perform 10 types of regressions, namely

LinearReg: Linear y=ax+b

Med-Med also linear y=ax+b

QuadReg :Quadratic y= ax^2+bx+c

Cubic: y=ax^3+bx^2+cx+d

Quartic: y=ax^4+bx^3+cx^2+dx+e

LogReg, logarithmic: y=a+b*ln(x)

ExpReg, exponential y=a*e^(bx)

PowerReg, power: y= ax^b

SinReg, sinusoidal: y=a*sin(bx+c) +d

LogisticReg, logistic; y= c/(1+a*e^(-bx))

There may be more regression models appropriate for more advanced (specialized) statistics but the ones in the list are all the CFX-9850GB plus offers. However, since the calculator knows a programming language, you may want to implement a particular model.

Hope that helps.

Th CFX-9850GB Plus is programmed to perform 10 types of regressions, namely

LinearReg: Linear y=ax+b

Med-Med also linear y=ax+b

QuadReg :Quadratic y= ax^2+bx+c

Cubic: y=ax^3+bx^2+cx+d

Quartic: y=ax^4+bx^3+cx^2+dx+e

LogReg, logarithmic: y=a+b*ln(x)

ExpReg, exponential y=a*e^(bx)

PowerReg, power: y= ax^b

SinReg, sinusoidal: y=a*sin(bx+c) +d

LogisticReg, logistic; y= c/(1+a*e^(-bx))

There may be more regression models appropriate for more advanced (specialized) statistics but the ones in the list are all the CFX-9850GB plus offers. However, since the calculator knows a programming language, you may want to implement a particular model.

Hope that helps.

Oct 24, 2009 | Casio CFX 9850GB Plus Calculator

I had this problem as well...Were you working on a SinReg equation by any chance? I was able to do every other type of regression (Linear, quadratic, cubic, ect..) In order to get Sinusoidal regression you need to make sure you arrow down to the Period box when entering the equation, and fill it in with the number of items in your table of values (a ten item list means a period of 10). That was the fix for me, so hopefully it works for you!

Jan 17, 2009 | Texas Instruments TI-89 Calculator

Information regarding singular Matrix can be found on Texas Instruments Knowledge Base which can be accessed by clicking on the URL below:

http://epsstore.ti.com/OA_HTML/csksxvm.jsp?nSetId=70965&nUsePub=NO&jttst0=6_23871,23871,-1,0,&jtfm0=&etfm1=&jfn=ZG4DFC2561D832E9A7B8E3D67D02A142E36C32198B223B8B735B80EB41E1A4C06C1D6FD81FCE2A573E09CA38076BEBE3A38E

http://epsstore.ti.com/OA_HTML/csksxvm.jsp?nSetId=70965&nUsePub=NO&jttst0=6_23871,23871,-1,0,&jtfm0=&etfm1=&jfn=ZG4DFC2561D832E9A7B8E3D67D02A142E36C32198B223B8B735B80EB41E1A4C06C1D6FD81FCE2A573E09CA38076BEBE3A38E

Feb 07, 2008 | Texas Instruments TI-83 Plus Calculator

Here are a few things to try.

First, I'd check whether the students put the data

into lists other than L1 and L2. If you do SinReg

with no arguments, the machine defaults to using L1

and L2.

Second, check degree versus radian mode.

Third, I have had problems in the past with SinReg

when the data were *too good*. I think a singular

matrix might be the culprit in a case like this, but I

doubt that's the problem here. If you think it might

be, try deleting every other data point and try the

regression again.

First, I'd check whether the students put the data

into lists other than L1 and L2. If you do SinReg

with no arguments, the machine defaults to using L1

and L2.

Second, check degree versus radian mode.

Third, I have had problems in the past with SinReg

when the data were *too good*. I think a singular

matrix might be the culprit in a case like this, but I

doubt that's the problem here. If you think it might

be, try deleting every other data point and try the

regression again.

Jan 04, 2008 | Texas Instruments TI-84 Plus Calculator

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