TI 84+ Quick Reference

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All About Apps for the TI-84 Plus Silver EditionIf you’ve ever wondered...So what is that little å key on your TI-84 Plus Silver Editionfor, anyway?Handheld Software Applications, or Apps, are pieces of software youcan add on to your TI-84 Plus Silver Edition or TI-84 Plus, in the sameway you would add software to your computer. This allows you tocustomize your TI handheld to meet your class needs and update itfrom one year to the next. Pretty cool, huh?The TI-84 Plus Silver Edition comes preloaded with lots of Apps ––StudyCards , Probability Simulation, CBL /CBR , Conic Graphing,Cabri Jr., Organizer, CellSheet , Puzzle Pack, Science Tools, CatalogHelp, Vernier EasyData , to name a few! The TI-84 Plus comespreloaded with StudyCards, Probability Simulation, CBL/CBR, CatalogHelp, and other Apps. Some of the coolest Apps for the TI-84 Plus SilverEdition and TI-84 Plus are:To access the Apps on yourTI-84 Plus Silver EditionAll you have to do is press the å key, scroll down the list to the Appyou‘d like to explore, and press Õ. If you get stuck using an App,visit education.ti.com/guides to download the FREE instruction guide.But that’s not all…We also have dozens of other Apps you can download, and all ofthem are FREE! Visit the TI website at education.ti.com/apps to findout more information on all of the Apps you can download.So how do you get these free Apps?First, you’ll need a TI Connectivity USB cable – one is included withthe TI-84 Plus Silver Edition and is available as an accessory with theTI-83 Plus model. You can purchase a TI Connectivity USB cable at aretail store or the TI Online Store. USB and serial cables are availablefor both Windows ® PCs and Macintosh ® computers.Cabri Jr.Add a new dimension to your learning experiencewith Cabri Jr., our interactive Geometry App.Construct, analyze and transform mathematicalmodels and geometric diagrams. Then altergeometric objects on the fly to see patterns, makeconjectures and draw conclusions.Inside the TI Connectivity kit (and TI-84 Plus Silver Edition) package,you will find a CD with TI Connect link software, which allowsyour computer to communicate with your TI-84 Plus Silver Editionhandheld. Follow the directions to install the software from the CDinto your computer.OrganizerKeep track of where you’re going and whereyou’ve been. Put your future and your friends atyour fingertips when you input contacts and tasks.CellSheet You have a spreadsheet to your TI-84 Plus SilverEdition! Create graphs, including pie charts, andfill a range of cells with formulas. You can evenimport and export files to and from Excel ® .© Texas Instruments, 2007StudyCards Create electronic flash cards to use as a study tool forquiz or test review. Download ready made StudyCardstacks for the SAT * and ACT from our collectionat education.ti.com/studycards. Create and sharestacks with other students from all over theworld.NoteFolio Easily type notes for all your classes with theTI Keyboard. Select, cut, copy, paste, deleteand insert text in your notes. Best of all, usethe NoteFolio Creator PC utility to transfernotes to and from Word ® files.Topics in Algebra 1Walk, run or ride a bicycle through basic conceptsin algebra. You can be the envy of all your friendsby grasping this mystical subject with this fun andeasy tutorial.Next, visit education.ti.com/apps to browse through the FREE Appsthat are available for the TI-84 Plus and TI-83 Plus families of graphingcalculators. All Apps are FREE to download – simply follow the stepsonline. Just be sure to save the file in a location you’ll remember.Now it’s time to transfer the App from your computer to yourTI-84 Plus Silver Edition. This is the easy part! Just plug your USBcable into your computer and your TI-84 Plus Silver Edition,launch the TI Connect software, and click on Device Explorer.TI Connect will automatically detect your device. All you have to dois find the App file you saved, drag it to the Device Explorer window,drop it, and wait for it to transfer. Voilà! Press the å key to see yournewly transferred App! Good luck and happy downloading!We know you’ll have an Appsolute blast!® Excel, Word, Windows, and Macintosh are registered trademarks of their respective owners.* SAT & AP are registered trademarks of the College Entrance Examination Board.PSAT/NMSQT is a registered trademark of the College Entrance Examination Board andNational Merit Scholarship Corporation. ACT is a registered trademark of ACT, Inc. None ofthese were involved in the production of nor do they endorse this product.Policies subjectto change. Visit www.collegeboard.com and www.act.org.education.ti.com
General Math with the TI-84 Plus Silver EditionArithmetic Operations and PropertiesArithmetic Operations with the TI-84 Plus Silver EditionAddition: valueA + valueB Returns valueA plus valueB √Subtraction: valueA - valueB Subtracts valueB from valueA πMultiplication: valueA x valueB Returns valueA times valueB ØDivision: valueA ÷ valueB Returns valueA divided by valueB •Properties of Addition & MultiplicationCommutative property of additionCommutative property of multiplicationAssociative property of additionAssociative property of multiplicationDistributive property of multiplication over additionDistributive property of multiplication over subtractionNumbersPrime NumbersA whole number with only two factors: itself and 1EXAMPLES: 2, 3, 5, 7, 11, 13, 17a+b = b+aab = baa+(b+c) = (a+b)+ca(bc) = (ab)ca(b+c) = ab+aca(b–c) = ab–acCommon FactorsA number that divides exactly into two or more given numbersEXAMPLES: 1, 2, 3, 4, 6, and 12 are factors of 12Greatest Common FactorThe greatest number that is a factor of two or more numbersEXAMPLE: 4 is the greatest common factor of 12 and 16.To calculate the greatest common factor on your TI-84 Plus Silver Edition,press ç ~ 9:gcd(. This will compute the greatest common factor ofvalueA and valueB, which can be real numbers or lists.Least Common MultipleThe smallest number that is a multiple of two or more numbersEXAMPLE: 12 is the least common multiple of 2, 3, 4 and 6.To calculate the least common multiple on your TI-84 Plus Silver Edition,press ç ~ 8:lcm(. This will compute the least common multiple ofvalueA and valueB, which can be real numbers or lists.Order of OperationsGeneral Rules1 Do all operations within parentheses2 Do all powers and roots3 Do multiplication and division in order from left to right4 Do addition and subtraction in order from left to rightEquation Operating System (EOS ) for the TI-84 Plus Silver EditionEOS defines the order in which functions and expressions are entered andevaluated. EOS evaluates the functions in an expression in this order:1 Functions that precede the argument, such as √ (, sin(, or log(2 Functions that are entered after the argument, such as 2 , -1 , !, °, or r ,and conversions3 Powers and roots, such as 2 5 or 5 √324 Permutations (nPr) and combinations (nCr)5 Multiplication, implied multiplication, and division6 Addition and subtraction7 Relational functions, such as > or ≤8 Logic operator and9 Logic operators or and xorWithin a priority level, EOS evaluates functions from left to right.Calculations within parentheses are evaluated first.Math SymbolsTo access many math symbols,go to the TEST Menu on yourTI-84 Plus Silver Edition, by pressingy : .Powers and RootsSquare: value 2 The ° key returns a value multiplied by itself.The value can be a real or complex number,expression, or list.Square root: √ (value) y C returns the square root of a realor complex number, expression, or list.Common Squares and Rootsn n 2 √n1 1 1.02 4 1.4143 9 1.7324 16 2.05 25 2.2366 36 2.4497 49 2.6468 64 2.828Cube: value 3 Press ç. 3: 3 Returns the cube of a real orcomplex number, expression, list, or square matrix.Cube root: 3 √ (value) Press ç. 4: 3 √ ( Returns the cube root of areal or complex number, expression, or list.x th root: x √ value Press ç. 5: x √ ( Returns xth root of a value.Power: value^power The õ key returns a value raised to a power. Valuecan be a real or complex number or expression.Power of 10: 10^(value) Press y G. Returns 10 raised to the value power.Value can be a real or complex number or expression.Fractions, Decimals and Percents1 = 1.0 = 100%1 /2 = 0.5 = 50%1 /3 = 0.333 = 33.3%1 /4 = 0.25 = 25%1 /5 = 0.2 = 20%1 /6 = 0.166 = 16.7%1 /8 = 0.125 = 12.5%1 /9 = 0.111 = 11.1%1 /10 = 0.1 = 10%1 /12 = 0.083 = 8.3%2 /3 = 0.666 = 66.7%3 /4 = 0.75 = 75%value ➧Decvalue ➧Fracn n 2 √n9 81 3.010 100 3.16215 225 3.87320 400 4.47225 625 5.0100 10,000 10.01 /2 1 /4 0.7071 /4 1 /16 1 /2Press ç. 2: ➧Dec Displays a real or complexnumber, expression, list or matrix in decimal format.Press ç. 1: ➧Frac Displays a real or complexnumber, expression, list or matrix as a fractionsimplified to its simplest terms.© Texas Instruments, 2007education.ti.com
Page 1 and 2: Getting to Know Your TI-84 Plus Sil
Page 3: TI-84 Plus Silver Edition Expressio
Page 7 and 8: More Algebra with the TI-84 Plus Si
Page 9 and 10: Trigonometry with the TI-84 Plus Si

TI 84+ Quick Reference

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