Getting Started with the TI-84 Plus CE Graphing Calculator This guidebook applies to software version 5.1. To obtain the latest version of the documentation, go to education.ti.com/go/download.
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Contents Important Information Using Your TI-84 Plus CE Graphing Calculator Key Features Using the Keyboard Turning the TI-84 Plus CE On and Off Using the TI-84 Plus CE Keyboard Setting the Display Brightness Using the Home Screen Working with Menus Setting Up the Calculator Modes Setting Modes Evaluating Expressions Order of Operations Entering Expressions and Instructions Working with Graphs Using Color on the TI-84 Plus CE Using QuickPlot and Fit Equation Working With Images Working with Matrices
Using Applications (Apps) Cabri™ Jr.
Using Your TI-84 Plus CE Graphing Calculator The TI-84 Plus CE graphing calculator comes with a USB cable, plenty of storage and operating memory. It also comes pre-loaded with software applications (Apps) to help you perform pre-algebra, calculus, biology, chemistry, and physics calculations.
Using the Keyboard This section covers basic graphing calculator settings and explains how to navigate the home screen and menus. Turning the TI-84 Plus CE On and Off This section covers basic on and off features for your graphing calculator. Turning the Graphing Calculator On Press É. An information screen displays: • Press À to continue to the home screen but not see this information screen the next time you press É. -or- • Press Á to continue to the home screen.
Turning the Graphing Calculator Off Press y M. • The Constant Memory™ function retains settings and memory, and clears any error condition. • If you turn off the TI-84 Plus CE and connect it to another graphing calculator or personal computer, any communication will “wake" it up. Automatic Power Down™ (APD™) • To prolong battery-life, APD™ automatically turns the TI-84 Plus CE off after about three to four minutes of inactivity.
Function Keys y Access the second function printed to the left above each key. ƒ Access the third function printed to the right above each key. ƒ Access shortcut menus for ^ - fraction templates, n/d, quick matrix entry, select MATH a menus, and VARS menu functions. ƒ Access options for the DRAW b command when used in GRAPH.
Using the Function Keys Primary Function • Secondary • Function • • Tertiary (Alpha Key) Function • • • • The function appears on the key. Ex: to display the MATH menu, press ». The function appears above the key in the same color as the y key. When you press the y key, the key name printed above the other key becomes active for the next keystroke. Ex: to display the TEST menu, press y and then ». The flashing cursor becomes Þ when you press y . Þ may also appear in the status bar.
Setting the Display Brightness This section covers how to set the display brightness and explains automatic dimming. Adjusting the Display Brightness You can adjust the display brightness to suit your viewing angle and lighting conditions. To adjust the brightness, follow these steps. ▶ Press y † to darken the screen one level at a time. ▶ Press y } to lighten the screen one level at a time. The TI-84 Plus CE retains the brightness setting in memory when it is turned off.
Using the Home Screen Expressions Answers Use the home screen to enter instructions and evaluate expressions. Answers appear on the same screen. Most calculations are stored in home screen history. Press } and † to scroll through the entry history and paste the entries or answers to the current entry line. 1. Enter a calculation. 2. Press y 5 from any screen until you get back to the home screen. 3. Press y C 3 ¡ Ã 4 ¡ ~ Ã 6 Í .
Classic Entries MathPrint™ 1 2 sqrt (5) 5 nDerive (x 2 , x , 1 ) Some input areas in MathPrint™ mode only support classic entries.
Scrolling Through the Home Screen History If all lines of the display are full, text scrolls off the top of the display. You can scroll up through previous entries and answers on the home screen, even if you have cleared the screen. When you find an entry or answer that you want to use, you can select it and paste it (press Í) on the current entry line. Note: List and matrix answers cannot be copied and pasted to the new entry line.
Tip: Context help, if available, is displayed on the second line. The battery status icon, busy indicator, alpha indicator, and second key indicator are on the right. When you scroll into the home screen history, the context help on the status bar displays HISTORY. In the example below, the cursor is on the GridColor option. The context help for how to change the GridColor using the spinner menu is displayed on the second line of the status bar. Selected MODE settings.
^ Templates to enter fractions, and to toggle between whole and mixed fractions, and fractions and decimals. _ Selected functions from the MATH MATH and MATH NUM menus as you would see them in a textbook, when in MathPrint™ mode. Functions include absolute value, numeric differentiation, numeric integration, summation, log base n, square root, permutations, combinations, and factorials. ` Quick MathPrint™ matrix entry, when available. a Names of function variables from the VARS Y-VARS menu.
Display Cursors The cursor may change to indicate what will happen when you press the next key or when you select the next menu item to be pasted as a character. Note: The second cursor Þ and alpha cursor Ø may appear on the status bar, depending on the context. Cursor Appearance Effect of Next Keystroke Entry Solid rectangle This is the default cursor. Enter characters at this cursor; this overrides any existing character. $ Insert Underline __ Press y6 for this cursor.
Working with Menus You can access TI-84 Plus CE commands using menus. Displaying a Menu • When you press a key to display a menu, that menu temporarily replaces the screen where you are working. • Ex: press » to display the MATH menu. • After you select an item from a menu, the screen where you are working usually displays again.
Selecting an Item from a Menu You can select an item from a menu in three ways. ▶ Press the number or letter of the item you want to select. The cursor can be anywhere on the menu, and the item you select does not need to be displayed on the screen. -or- ▶ Press † or } to move the cursor to the item you want, and then press Í. -or- ▶ Within the Catalog listing of functionality, move the cursor to the item you want, and then press Ã.
Notes: • After you select an item from a menu, the TI-84 Plus CE typically displays the previous screen. • If you do not see PASTE on the Catalog Help screen, press y5 until you return to the home screen, then repeat your actions. If this happens, it may mean the screens were layered and the previous screen did not have an active cursor on an input line to accept the pasting of the function or command.
Working with MATH Menus The following are the MATH shortcut menus. Scroll down when you see the ($) to see the whole menu.
Setting Up the Calculator Modes Mode settings control how the calculator displays and interprets: • Answers • Elements of lists and matrices • Graphs • Language settings • Numbers Setting Modes To set calculator modes, press z. The following menu appears on your screen: Note: When you press z, the cursor is on NORMAL by default. Press } to switch between MathPrint™ and Classic modes. Note: The Constant Memory™ feature retains mode settings when the unit is turned off.
• Some areas in MATHPRINT™ mode display in classic (one line) formats. • If you switch between these modes, most entries (except matrix calculations) will be preserved. NORMAL SCI ENG Answers are displayed in standard formats when the calculation or setting forces a decimal result on the calculator. Notation for 12345.67 Decimal answer displays as: NORMAL 12345.67 12345.67 Retains the decimal notation up to limits of the calculator display and memory. SCI (Scientific1.234567 x 104) 1.
• The Tangent( DRAW instruction equation of the line, x, and dy/dx values • Results of calculated operations • The regression equation stored after the execution of a regression model RADIAN DEGREE Angle modes control how the calculator interprets angle values in trigonometric functions and polar/rectangular conversions. The RADIAN or DEGREE setting will display in the status bar. RADIAN mode interprets angle values as radians. Answers display in radians.
THIN plotting mode resets all Y= line styles to a thin line connecting each point calculated for the selected functions. Note: Use THIN plotting mode for function graphing when looking at any functions which asymptote to an axis. DOT-THIN plotting mode resets all Y= line styles to a small dot and plots only the calculated points of the selected functions. SEQUENTIAL SIMUL SEQUENTIAL graphing-order mode evaluates and plots one function completely before the next function is evaluated and plotted.
FULL HORIZONTAL GRAPH-TABLE FULL screen mode uses the entire screen to display a graph or edit screen. Each split-screen mode displays two screens simultaneously. • HORIZONTAL mode displays the current graph on the top half of the screen; it displays the home screen or an editor on the bottom half. • GRAPH-TABLE mode displays the current graph on the left half of the screen; it displays the table screen on the right half.
STAT WIZARDS: ON OFF ON : Selection of menu items in MATH PROB, STAT, CALC, DISTR DISTR, DISTR DRAW and seq( in LIST OPS displays a screen which provides syntax help (wizard) for the entry of required and optional arguments into the command or function. The function or command will paste the entered arguments to the Home Screen history or to most other locations where the cursor is available for input. Some calculations will compute directly from the wizard.
• The LANGUAGE spinner menu will only display Language Apps loaded on the calculator. Check education.ti.com for all available languages. Use TI Connect™ CE to load files to your calculator. Using the Special Character Set After you select your desired language, a new item ( CHARACTER) is added to the TI-84 Plus CE CATALOG. This item accesses special characters and accent marks used in the language that you chose for localization.
Evaluating Expressions An expression is a group of • numbers, • variables, • functions and their arguments, -or- • a combination of these elements. An expression evaluates to a single answer. On the TI-84 Plus CE, you enter an expression in the same order as you would write it on paper. For example: pR 2 is an expression.
Note: Within a priority level, EOS™ evaluates functions from left to right. Calculations within parentheses are evaluated first. A number in scientific or engineering notation, 2.34â6, is interpreted as (2.3x106) with parentheses so the number remains the correct value during the EOS™ calculation. Implied Multiplication The TI-84 Plus CE recognizes implied multiplication, so you do not need to press ¯ to express multiplication in all cases.
Entering an Expression To create an expression, you enter numbers, variables, and functions using the keyboard and menus. An expression is evaluated when you press Í, regardless of the cursor location. The entire expression is evaluated according to EOS™ rules, and the answer is displayed according to the mode setting for Answer. Note: Most TI-84 Plus CE functions and operations are symbols comprising several characters. You must enter the symbol from the keyboard or a menu; do not spell it out.
To enter a matrix name: 1. Press y ¾. The Matrix Names menu appears. 2. Press the number on the keypad that corresponds with the desired Matrix Name. Ex: Press 1 for [A] as shown. Note: In MathPrint™ mode, press ~ to get out of the MathPrint™ template and continue entering the expression. Calculate 3.76 P (L7.9 +$ 5) + 2 log 45. MathPrint™ Classic 3 Ë 76 ¥ £ k 7 Ë 9 Ã y C 5 ~ ¤ 3 Ë 76 ¥ £ k 7 Ë 9 Ã y C 5 ¤ Ã 2 « 45 ¤ Í ¤ Ã 2 « 45 ¤ Í Note: The ~ is a notable keystroke difference as compared to Classic.
• â stands for "x10" and the calculator interprets the entire number as (1.23.45 x 102) as if it was entered with parentheses. When you enter a number in scientific notation, the TI-84 Plus CE does not automatically display answers in scientific or engineering notation. The mode settings and the size of the number determine the display format. Functions A function returns a value. For example, log( and sin( are functions. In general, the first letter of each function is lowercase.
TI-84 Plus CE Edit Keys Keystrokes Result ~ or | • Moves the cursor within an expression; these keys repeat if held down on the keypad. } or † • • Moves the cursor from line to line within an expression that occupies more than one line; these keys repeat if held down on the keypad. Moves the cursor from term to term within an expression in MathPrint™ mode; these keys repeat if held down on the keypad. On the home screen, scrolls through the history of entries and answers.
Keystrokes Result • „ 30 • If you are prompted to enter a name such as for a group or a program, alpha-lock is set automatically. Note: The TI-84 Plus CE does not automatically set alpha-lock for entries that require list names. Pastes an X in Function mode, a T in Parametric mode, a q in Polar mode, or an n in Seq mode with one keystroke.
Working with Graphs This section covers how to change color options on a graph, how to draw points on a graph, and how to insert an image as a background on a graph. Using Color on the TI-84 Plus CE The TI-84 Plus CE graphing calculator has many color options and a high resolution display that allows more information to be shown on the screen. The TI-84 Plus CE uses color in the following ways: • Y= editor for line color.
1. Press | to highlight the colored box. 2. Press Í. 3. Press y ~ ~ ~ to place the cursor box on the color and line style at the left of the screen and press Í. The spinner box displays. Notice the second line in the status bar, which displays hints. 4. Press ~ ~ ~ to select magenta. 5. Press †. Note: The thick line style is the default. It can be changed by pressing | or ~. 6. Press ~ to highlight OK and then press Í. To set a Background Image: 1. Press y ..
Drop points on the screen. Points can be saved to lists. Calculate the regression equation, draw the curve, and store the function. Working With Images The TI-84 Plus CE uses both pictures and background images. They are both stored in Flash archive, but they are used in different ways. Using Pictures and Backgrounds • Image Vars (Image1 - Image9, and Image0) are variables stored in archive memory. An Image Var is used as a Background Image in the graph area.
Working with Matrices You can enter matrices using the matrix editor on your graphing calculator. For example, you can perform the following operations on matrices: • • • Addition Division Elementary Row Operations • • Inverses Multiplication • Subtraction Using the Matrix Editor 1. Press y ¾. 2. Press ~ to navigate to the EDIT submenu. 3. Select from one of 10 allowed matrix variable names [A] – [J]. 4. Enter the dimension of the matrix, then enter values in each matrix cell.
- ¾ NAMES 3: [C] as matrix variables to the Home Screen. Note: Remember that you cannot type in a matrix name from the calculator keypad. Use the ¾ NAMES menu to paste a matrix name.
Working with Probability and Statistics This section covers probability and statistics commands. • Probability commands deal with random numbers, which are generated by algorithms on the calculator. • Statistics commands allow you to create lists of data, then plot or analyze that data. Working with Probability You can find probability commands in the » PROB submenu. Many probability commands have Stat Wizards to help you enter the syntax.
Notes: • With each rand execution, the TI-84 Plus CE generates the same random-number sequence for a given seed value. The TI-84 Plus CE factory-set seed value for rand is 0. To generate a different random-number sequence, store any nonzero seed value to rand. To restore the factory-set seed value, store 0 to rand, or reset the defaults by going to y L 7:Reset.... • The seed value also affects randInt( , randNorm( , and randBin( instructions.
3. Enter your data into list columns. Note: Once in the list editor, use the arrow keys to enter the data in the lists. L1 – L6 are built-in list names. To plot this data: 4. Press y ,. 5. Press 1: Plot1 (to set up a scatter plot for L1 and L2), then Í. 6. Press | to highlight On. 7. Press q to automatically set up a graphing window for your data. 8. Press 9: ZoomStat to see the graph. 9. Press r and arrow keys to trace on the plot.
Note: You can plot your statistics data in these ways: • • • • • Scatter plot xyLine Histogram Regular or Modified box-and-whisker plot Normal probability plot Working with Probability and Statistics 39
To find the two variable statistics for L1 and L2: 1. Press …. 2. Press ~ to highlight CALC. 3. Press † until you highlight 2:2-Var Stats , then Í. 4. Press † until you highlight Calculate, then Í. ▶ The screen will display the variable statistics. Note: Most common probability and statistics commands will have a wizard to prompt for syntax (values). The built-in Catalog Help is also available by pressing the à key on most menu items.
Working with Variables You can enter and use several types of data, including real and complex numbers, matrices, lists, functions, stat plots, graph databases, graph pictures, and strings. Variables and Defined Items You can enter and use several types of data, including real and complex numbers, matrices, lists, functions, stat plots, graph databases, graph pictures, and strings. The TI-84 Plus CE uses assigned names for variables and other items saved in memory.
Variable Type Names Save current equations from Y= and Window settings to reuse. Background images Image1, Image2, ... , Image9, Image0 Pictures Pic1, Pic2, ... , Pic9, Pic0 Strings Str1, Str2, ... , Str9, Str0 Apps Applications AppVars Application variables Groups Grouped variables Save a group of calculator files for sharing or to re-use when setting up a classroom. System variables Xmin, Xmax, and others * Once a list contains a complex number, it is designated as a complex list.
1. Enter the value you want to store. The value can be an expression. 2. Press ¿. ! is copied to the cursor location. 3. Press ƒ and then the letter of the variable to which you want to store the value. 4. Press Í. The graphing calculator evaluates the expression and stores the value to the variable. Displaying a Variable Value To display the value of a variable, enter the variable name on a blank line on the home screen, and then press Í.
• • • • • Press ƒ and then the letter of the variable. Press y 9, and then select the name of the list, or press y d or e, and so forth. Press y ¾, and then select the name of the matrix. Press ½ to display the VARS menu or ½ ~ to display the VARS Y-VARS menu; then select the type and then the name of the variable or function. Press ƒ a to display the YVAR shortcut menu, then select the name of the function. The variable name you selected is displayed on the bottom line and the cursor disappears. 3.
Managing Calculator Files This section explains how to transfer the OS from calculator to calculator and describes compatibility between graphing calculators. Transferring the OS from calculator to calculator You can transfer the operating system from one calculator to another using a USB unitto-unit cable. Connect the two calculators by firmly inserting the USB cable ends into the calculators. The USB port is located on the front-right side of the calculator.
Link from TI-84 to TI-84 Plus CE Link from TI-84 Plus CE to TI-84 84P computer file type TI-84 Plus CE computer file type Programs - TI Basic1, 2 Yes Yes 8xp 8xp Assembly Programs1 Yes No 8xp 8xp Pictures No No 8xi 8ci Background Images N/A No N/A 8ca Group Files Yes Yes 8xg 8xg User Zoom Yes Yes 8xz 8xz String Yes Yes 8xs 8xs Table Yes Yes 8xt 8xt Function file Yes Yes 8xy 8xy GDB3 Yes Yes 8xd 8xd List Yes Yes 8xl 8xl Matrix Yes Yes 8xm 8xm Nu
Using Applications (Apps) These applications are preloaded on your TI-83 Premium CE, and you can install Apps. You can view the Applications Guidebook, install applications, and install the TI Connect™ CE software at education.ti.com/go/download. Press Œ to see the complete list of applications. Cabri™ Jr. App Construct, analyze, and transform mathematical models and geometric diagrams on your TI graphing calculator.
Inequality Graphing App Gives you new features for graphing equations and inequalities and evaluating the relationship between them. You can: • Enter inequalities using relation symbols • Graph inequalities and shade the union and intersection regions • Enter inequalities (vertical lines only) in an X=editor • Trace points of interest (such as intersections) between relations • Store (x,y) coordinate pairs to lists for viewing and optimizing functions for linear programming.
Science Tools App Science Tools allows you to perform unit conversions on your calculator. App elements include: • Significant Figures Calculator • Constants and Conversions • Data and Graph Wizard • Vector Calculator Transformation Graphing App Transformation Graphing lets you observe the effects of changing coefficient values without leaving the graph screen. Transformation Graphing affects only function graphing mode. X is the independent variable and Y is the dependent variable.
Using Accessories This section covers how to use: • TI computer software • TI Charging Station CE • TI rechargeable batteries Using TI Desktop Software Use TI desktop software to exchange information between your graphing calculator and your computer, or to display a TI graphing calculator for your entire classroom. Using TI-SmartView™ CE The TI-SmartView™ CE software allows you to display a TI graphing calculator for your entire classroom.
Preparing Charging Stations for Use The TI Charging Station CE is shipped with the following components in each package: • A TI Charging Station CE • An AC adapter • A regional power cord adapter 1. Insert the small end of the power adapter cord into the charging station’s power jack. 2. Plug the other end of the adapter into a power outlet. • An indentation on each side of the TI Charging Station CE enables you to lift it. Always use two hands to lift and move the charging station.
52 Using Accessories
1. Remove the slide case from the graphing calculator. 2. Align the grooves on the sides of the graphing calculator with the guides in the charging station slots. Ensure the calculator is facing the proper direction. 3. Gently push the graphing calculator into the slot. You will feel a slight resistance; continue pushing down until the graphing calculator is seated.
Battery Status The battery status icon on the upper right of the screen gives information on battery life. The battery icons indicate the level of battery power remaining, and indicate if the battery is charging. Battery is 75% to 100% charged. Battery is 50% to 75% charged. Battery is 25% to 50% charged. Battery is 5% to 25% charged. Battery is charging. Warning: • RAM memory will be lost if the battery charge is lost. You should back up or archive your variables if your battery power gets low.
Recharging the TI Rechargeable Battery You should make sure the TI-84 Plus CE battery is charged for classroom use and before exams. Use one of the following options to charge the battery in the TI-84 Plus CE graphing calculator: • Connect the graphing calculator to a computer using a USB computer cable. -or- • Connect to a wall outlet using a TI wall adapter (may be sold separately). -or- • Place the graphing calculator in a TI Charging Station CE.
2. 3. 4. 5. Remove the panel. Remove the old battery. Drop in a new battery. Replace the back panel and fasten the screws with a screwdriver. Disposing of Used Batteries Safely and Properly Do not mutilate, puncture, or dispose of batteries in fire. The batteries can burst or explode, releasing hazardous chemicals. Discard used batteries according to local regulations. When the TI Rechargeable Battery is fully charged, the graphing calculator draws power in the following order: 1.
Using Press-to-Test Use Press-to-Test to manage exams using TI graphing calculators in your classroom. Setting Up Test Mode 1. Turn the calculator OFF. 2. Press and hold down the ~, |, and É keys, and then release. 3. Press OK on each screen to place calculator in exam mode. 4. Exam LED will blink green. 5. The RESET OPTIONS screen displays. Notes: • • • • The status bar is blue when in TEST MODE and TEST MODE ENABLED. Pic & Image Vars are disabled. Calculator data (Vars) are deleted from RAM and Arc.
• Several Apps remain on the calculator for the exam. Press any key to see the Apps menu. 8. On the exam calculator, press ¼ to verify that programs have been disabled. The following screen displays: 9. On the exam calculator, Pic and Image Vars are shown as disabled. The following screen displays: 10. In memory management (y L, 2:Mem Management/Delete...), disabled files will display with the not equal sign.
a) Turn off the calculator while in test mode. b) "Re-Press-to-Test" - press and hold down the ~, |, and É keys, and then release. c) Select OK when you see the Reset Verification Screen. The calculator is now "clean." 2. Re-enable files to turn off test mode. a) Link two TI-84 Plus CE graphing calculators using a unit-to-unit USB cable. b) Send a file to bring the calculator(s) out of test mode. Tip: To preserve battery life, take your calculator out of Press-to-Test mode after the exam.
Diagnosing and Correcting Error Conditions The TI-84 Plus CE detects errors while performing these tasks: • Evaluating an expression • Executing an instruction • Plotting a graph • Storing a value 1. Determine the error. The error screens give helpful hints about what may have happened, but the errors are not always fully explained. 2. Correct the expression. Diagnosing an Error When the TI-84 Plus CE detects an error, it returns an error message with a short description.
General Information Texas Instruments Support and Service General Information: North and South America education.ti.com Home Page: KnowledgeBase and e-mail inquiries: education.ti.com/support Phone: (800) TI-CARES / (800) 842-2737 For North and South America and U.S. Territories International contact information: education.ti.com/support/worldwide For Technical Support Knowledge Base and support by e-mail: education.ti.com/support or ti-cares@ti.
• Do not mix brands (or types within brands) of batteries. There is a risk of explosion if a battery is replaced by the wrong type. Disposing of Batteries Do not mutilate, puncture, or dispose of batteries in fire. The batteries can burst or explode, releasing hazardous chemicals. Discard used batteries according to local regulations. Korean Class A warning statement Class A 급기기(업무용방송통신기자재) Notification 이 기기는 업무용(A급) 전자파적합기기로서 판 매자 또는 사용자는 이 점을 주의하시기 바라 며, 가정외의 지역에서 사용하는 것을 목적으로 합니다.
Index D A a+bi (rectangular complex mode) AC adapters alpha cursor angle modes APD™ (Automatic Power Down™) Apps AppVars Archive Automatic Power Down™ (APD™) 20 51 12 19 2-3 42 42 43 2-3 B batteries charging status troubleshooting 53 53 53 decimal mode (float or fixed) Degree angle mode Desktop Software display brightness display cursors Displaying the Clock Settings 18 19 50 6 12 22 E E (exponent) edit keys table Eng (engineering notation mode) entry cursor EOS™ (Equation Operating System™) Equatio
Simul (graphing order) H home screen scrolling Horiz (horizontal split-screen mode) 7 7, 9 21 I implied multiplication Inequality Graphing insert cursor inserting calculators in charging station instruction, definition of 25 48 12 51 28 L LED lights 53 M menus scrolling shortcut mode Answers Classic MathPrint™ mode settings a+bi (complex rectangular) Degree (angle) Eng (notation) Fix (decimal) Float (decimal) Full (screen) Func (graphing) GT (screen) Horiz (screen) Normal (notation) Par/Param (graphi
spinner status LED indicator rechargeable batteries status bar storing TI-84 Plus CE Charging Stations 31 53 53 9 53 T TI-84 Plus CE Charging Stations storing TI-SmartView™ CE TI Connect™ CE TI Rechargeable Batteries charging Transformation Graphing troubleshooting 50 53 50 50 53 49 53 U Un/d UnArchive 21 43 V variables complex displaying and storing values graph databases graph pictures list matrix real types user and system Vernier EasyData™ 41 43 41 41 41 41 41 41 42 49 Index 65
