TI-83 & TI-84 Graphing Calculators

Assuming you're talking about the Texas Instruments series of calculators - it has a USB connector - you just need the relevant cable.

You can remove the batteries and test their voltages individually. Looking at the weakest one, 1.50 or more volts is good and will have a long life. 1.0 volts or less is almost dead. Sometimes you can tell the battery is weak by the contrast on the screen, but that's a matter of experience with that calculator.

Use the abs( function. To get to it, press MATH, scroll over to NUM on the top, and choose abs(. Put what is in between the absolute value bars in parenthesis.

For example |X+3| would be abs(x+3).

Another example: 3|X-2| + 5 would be 3abs(X-2)+5.

Press the "2ND" key, then DRAW (also the PRGM key), and select "1:ClrDraw."

Yes calculator TI-84 is permitted unless it's not othe TI model.

Yes, if have a programmable TI calculator, such as the TI-84, and most of the higher ones from that point.

If you do want to text message, then you need a calculator-to-calculator cable, and a program on both that allows texting. Of course, because the calculator cable is only about a foot long, it would be slightly redundant to be texting unless instead of talking. For an examples of such a program, try this page: http://www.ticalc.org/pub/83plus/basic/programs/linking/

However, you can't actually text wirelessly.

Either press the carat button followed by a 3 or go to the math function and select cubed.

I believe that that isn't possible unless you have it ported to ti84 or you know how to. the file format is different, and the game is built for a separate calc.

A simple way to reset your calculator to default values would be to take out the batteries. Taking out the AAA batteries that you usually change will have no effect on the settings. If you take off the battery cover, above the AAA's there is a little silver screw. If you unscrew this little screw there is a very small battery under it. This little battery saves your settings wile you change the AAA batteries. If you take out this little battery as well as the AAAs your calculator should reset it's self to default values.

First, put the data into lists 1 and 2. (Get to the lists by pressing Stat and then Edit.) Then press Stat, choose Calc at the top, and choose LinReg(ax+b). Press ENTER and it will display the regression equation, giving the values for a and b.

(If you want r and r2 values but don't see them, press 2ND Catalog (above zero) and choose DiagnosticOn. Press ENTER and then calculate the liner regression again.)

If you data is in lists other that 1 and 2, you can specify that by doing something like this:

LinReg(ax+b) L3, L4

With most of the TI calculators, you have to press the "2nd" button (usually in the top left corner, by the screen) and then the "ON/CLEAR" button (usually in the top right corner, by the screen).

Variables on the TI-84 Plus Silver hold numbers; there are like memory. Here is an example of how to wet the variable C to equal 24:

Enter the number 24, then press the STO> key. Then press ALPHA C (above PRGM). The calculator should show:

24->C

Press ENTER and the variable C will be set to 24. You can check this by pressing ALPHA C and then ENTER.

You don't, sorry. :) However, if you have a SilverLink cable, you can connect your calculator to your computer, and either save programs and files onto your computer, or load them back onto your calculator.

Create the following program (hit the PRGM button, then click new & give it a name):

: ClrHome

: Prompt A

: Prompt B

: Prompt C

:(B2-(4AC)) (STO->) X

:If X < 0

:DISP "NO REAL ANSWER"

: (-B+squareroot(X))/(2A) (STO->) Y

: (-B-squareroot(X))/(2A) (STO->) X

:

: Disp Y,X

Note: The (STO->) symbol means press the store key (above the ON button for the TI-84 plus). Also make sure to follow the placing of the parentheses exactly because the answers will be incorrect if you don't do it right.

THAT EXCLUDES THE PARENTHESES OF STO-> ! DO NOT PLUG IN THE PARENTHESES FOR STO-> !

Enjoy never having to deal with that formula ever again!

tastychips

I am not 100% sure, but when you plug it in to your cable, it might charge. I am sorry if this does not work. Its just a guess

Sorry, there isn't one

Put in your fraction (ex. 1/2+1/2)(use the divided by symbol for it) then add, subtract, or whatever. Then push the MATH button (underneath the ALPHA green button) hit enter then hit enter again and there is your answer. ex. 1/2+1/2>frac=1

Press [GRAPH] to see the graph, then press [2nd][PRGM] to enter the draw menu. If you scroll all the way to the bottom, you will see the Text( option; press ENTER. You can then type anywhere on the screen by using the arrows to move the cursor and then typing. Don't forget to press [2nd][ALPHA] before typing letters.

~

More calculator assistance is available at [See related link below]

Press 2ND TEST (above MATH). Then use the left or right arrow key to select LOGIC at the top of the screen.

Turn the calculator on and press 2nd, + (MEM), 2:Delete, 7:Prgm. This shows a list of all programs with the cursor pointed at the first one. Use the up- or down-arrow keys to place the cursor in front of the one you want to delete, then press ENTER. Repeat for all programs that are to be deleted. Turn the calculator on and press 2nd, + (MEM), 2:Delete, 7:Prgm. This shows a list of all programs with the cursor pointed at the first one. Use the up- or down-arrow keys to place the cursor in front of the one you want to delete, then press DEL. The calculator will then ask if you're sure you want to delete, so press 2:Yes. Repeat for all programs that are to be deleted.

found @ http://www.math.tamu.edu/~lynnette.cardenas/del_prog.htm

If you don't have games already installed on the calculator, you need to install them. If you already have them on your calculator, you need to go to the PRGM button, and if it is not there, go to the APPS button. If it is not either place, go to 2nd, MEM (above either the plus sign or minus sign), Groups, and then press the right arrow key to end up at UNGROUP. Go down to the game that you put on your calculator and hit Enter. Then the game should install on your calculator. If you don't have the game installed on your calculator already, follow the directions below: First you download the game from a website, such as ticalc.org, read the readme if it came with one, and then you send it to your calculator. To send it to your calculator, you connect the calculator to your computer with a black cable that came with the calculator. Then you make sure the calculator is turned on, and right-click the files that you downloaded. Go to Send this file to TI device... and when the window opens, click Send. If you don't see Send this file to TI device... when you right-click the game, then you don't have TI Connect installed. Either download it from education.ti.com, or install it from the CD that came with the calculator. Questions, see education.ti.com.

• ALG1CH5: An app with algebra questions
• ALG1PRT1: An app with algebra questions
• App4Math (ZoomMath or Zoom App4Math): An app that makes math easier to read (such as real square root symbols with the numbers inside them)
• AreaForm (Area Formulas): An app with questions and information about areas of different shapes
• CabriJr (Cabri Junior): An app that allows the user to draw geometric shapes
• CelSheet (CellSheet): A spreadsheet, sort of like excel
• Conics: An app with formulas for conic sections (circles, ellipses, hyperbolas, and parabolas)
• CSheetDe: Spreadsheet app in German
• CSheetEs: Spreadsheet app in Spanish
• CSheetFr: Spreadsheet app in French
• CtlgHelp (Catalog Help): An app that will show the syntax (what to type, basically), for the different functions on the calculator
• Dansk: An app that will make the calculator "speak Danish"
• Deutsch: An app that will make the calculator "speak German"
• EasyData: An app that helps with transferring data to and from the calculator

• Español: An app that makes the calculator "speak Spanish"

• Français: An app that makes the calculator "speak French"

• FunSci (Fundamental Topics in Science): An app with basic information about science and a link to SciTools

• Inequalz (Inequality Graphing): An app that allows the calculator to graph inequalities

• LearnChk (LearningCheck): An app that allows for the creation of test forms on the calculator, more or less

• Nederlan (Nederlands): An app that makes the calculator "speak Dutch"

• OrganEsp: Organizer in Spanish

• OrganFra: Organizer in French

• Organize (Organizer): Organizer with address book, calendar, and task list

• Perioden: Periodic table in German

• Periodic: Periodic Table

• PlySmlt2: Polynomail root finder and simultaneous equation solver

• PuzzPack (Puzzle Pack): An app with four puzzle games, including "Block Dude"

• Périod: Periodic table in French

• SciTools (Science Tools): An app with a sig-fig calculator, unit converter, data/graphs wizard, and vector calculator

• SciToolsEs: Science Tools in Spanish

• SciToolsFr: Science Tools in French

• StCrdDeu: StudyCards in German

• StCrdEsp: StudyCards in Spanish

• StCrdFra: StudyCards in French

• StudyCrd (StudyCards): Allows viewing of electronic flash cards created with the PC software Study Cardsâ„¢ Creator Software

• Svenska: makes the calculator "speak Swedish"

• Tabla P: Periodic table in Spanish

• Transfrm (Transformation Graphing): With this app turned on, variables other that X in equations (which are treated as constants by the TI-84 Plus Silver) can be set directly from the graph screen

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Press MATH then 9 (fnInt() enter the function comma enter the variable comma enter the lower bound comma enter the upper bound

For Microsoft Office Excel 2003:

1) Click Tools

2) Click Data Analysis*

3) Click Regression

4) Input values and check "Residual Plots"

5) Click OK

For Microsoft Office Excel 2007/2010/2013:

1) Click Data

2) Click Data Analysis*

3) Click Regression

4) Input values and check "Residual Plots"

5) Click OK

*Note: This may require installing the Analysis Toolpak.

For Microsoft Excel 2003:

1) Click Tools

2) Click Add-Ins

3) Check "Analysis ToolPak"

4) Click OK

For Microsoft Excel 2007/2010/2013:

1) Click Office Button (upper left-hand corner of screen)

2) Click Excel Options

3) Click Add-Ins

4) Click "Analysis ToolPak"

5) Click OK