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Where is the sinreg function or key? - Texas Instruments TI-84 Plus Calculator

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

Posted on Sep 30, 2010

  • machrf Nov 27, 2010

    It works fine until line 6, telling how to add the lists does not work. The obvious, going to lists and and selecting l1 and l2 does not work. You get an error.

  • machrf Nov 27, 2010

    this works till line 5, no instruction on how to add the lists. When you go to Lists and select L1 and L2 you get an error

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How to update older ti-84 plus


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.

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

1 Answer

My L1 was deleted and I don't know how to change my sinreg to go for L2 and L3


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 .
k24674_154.jpg
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

2 Answers

Using F keys- What is used for the Fn key?


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.

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1 Answer

I am trying to get the TI 83 Plus to fit a sine graph to data that I have in Lists 1 and 2. I typed in the command SinReg L1, L2, Y1. I got an error message:\r\nERR: SINGULAR MAT. What is wrong? What do I...


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.

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

2 Answers

I am trying to do SinReg but my calculator wont let me! HELP!!!!!


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

1 Answer

Multimedia keyboard on function keys. Functions work with a key "Function" How to change "Multimedia keys first" on "Function keys first" ???


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.

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1 Answer

Do i have only one type of exponencial regression o my 9850gb plus?


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.

Oct 24, 2009 | Casio CFX 9850GB Plus Calculator

1 Answer

Singular matrix error


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

1 Answer

I cannot get sinreg to work


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.

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

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