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30 Getting Started with the TI-84 Plus C Silver Edition

Using Variable Names

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 C uses assigned names for variables and other items saved
in memory. For lists, you also can create your own five-character names.

Notes about Variables

•

You can create as many list names as memory will allow (Chapter 11
in the guidebook).

•

Programs have user-defined names and share memory with variables
(Chapter 16 in the guidebook).

Variable Type

Names

Real numbers (including
fractions)

...

Complex numbers

...

Matrices

...

Lists

, and user-defined

names

Functions

...

Parametric equations

X1T

and

Y1T

...

X6T

and

Y6T

Polar functions

Sequence functions

Stat plots

Plot1, Plot2, Plot3

Graph databases

GDB1

GDB2

...

GDB9, GDB0

Background images

Image1

Image2

...

Image9

Image0

Pictures

Pic1

Pic2

...

Pic9

Pic0

Strings

Str1

Str2

...

Str9

Str0

Apps

Applications

AppVars

Application variables

Groups

Grouped variables

System variables

Xmin

Xmax

, and others

Содержание TI-84 Plus C

Страница 1: ...etting Started with the TI 84 Plus C Silver Edition Graphing Calculator This guidebook applies to software version 4 0 To obtain the latest version of the documentation go to education ti com go download ...

Страница 2: ... solely on an as is basis In no event shall Texas Instruments be liable to anyone for special collateral incidental or consequential damages in connection with or arising out of the purchase or use of these materials and the sole and exclusive liability of Texas Instruments regardless of the form of action shall not exceed the amount set forth in the license for the program Moreover Texas Instrume...

Страница 3: ...ons and Instructions 25 Pictures and Backgrounds 29 Using Variable Names 30 Storing Variable Values 31 Recalling Variable Values 32 QuickPlot and Fit Equation 33 ENTRY Last Entry Storage Area 34 Menus 36 VARS Menus 39 Grouping files 41 Special Features of the TI 84 Plus C 42 Other TI 84 Plus C Features 42 Interchangeable Faceplates 44 Battery Information 45 Replacing TI Rechargeable Batteries 47 T...

Страница 4: ...iv ...

Страница 5: ...ter or ViewScreen overhead panel but the TI 84 Plus C view option in the TI SmartView software allows you to project the graphing calculator emulator to the classroom Some files and variables are compatible between the TI 84 Plus C and the TI 84 Plus family of graphing calculators For more information on file compatibility see Linking Compatibility later in this chapter The TI 84 Plus C graphing c...

Страница 6: ...an contain various options depending on the feature Press and to scroll through the color options to set a color Note Take care to choose appropriate color combinations for the graph areas so that all features are visible You can reset the calculator to its default settings including color settings by pressing y L 7 2 2 Using Color on the Graph Screen The examples below show how to set line color ...

Страница 7: ... pressing or 6 Press to highlight OK and then press Í To set a Background Image 7 Press y Set grid color axes and border color as desired 8 Press or as necessary to highlight Background The spinner dialog box becomes active 9 Press as necessary to select the desired Background Image or color Note Your pre loaded Image Var may be different than the one displayed Note To create Background Image Vars...

Страница 8: ...d on the MATH and VARS menus When some features are active you may also see a shortcut menu in the t b location for special shortcuts available in that particular feature Editing Editing keys allow you to edit expressions and values Advanced Advanced function keys display menus that access the advanced functions Scientific Scientific calculator keys access the capabilities of a standard scientific...

Страница 9: ...plications such as Polynomial Root Finder and Simultaneous Equation Solver Inequality Graphing and more Note Catalog Help is an application on the TI 84 Plus but is built into the TI 84 Plus C operating system The Catalog Help contains syntax information for most menu items and most of the functions in the catalog To use Catalog Help on the TI Plus C select a menu item and then press Ã The primary...

Страница 10: ...a third function These functions are printed above the keys in the same color as the ƒ key The third functions enter alphabetic characters and special symbols as well as access SOLVE and shortcut menus For example when you press ƒ and then the letter A is entered This guidebook describes this keystroke combination as ƒ A If you want to enter several alphabetic characters in a row you can press y 7...

Страница 11: ...e this information screen again press 1 To continue and see this information screen again the next time you turn on the TI 84 Plus C press 2 If you previously had turned off the graphing calculator by pressing y M the TI 84 Plus C displays the home screen as it was when you last used it and clears any error The information screen displays first unless you chose not to see it again If the home scre...

Страница 12: ...manually press y M All settings and memory contents are retained by the Constant Memory function Any error condition is cleared Setting the Display Brightness Adjusting the Display Brightness You can adjust the display brightness to suit your viewing angle and lighting conditions To adjust the contrast follow these steps Press y to darken the screen one level at a time Press y to lighten the scree...

Страница 13: ...y on the home screen You can press and to scroll through the history of entries on the home screen and you can paste the entries or answers to the current entry line Press y 5 from any screen to go to the home screen Enter a calculation 1 Press y 5 to return to the home screen if needed 2 Press y C 3 Ã 4 Ã 6 Í Note When you are in a MathPrint template the cursor turns to a right arrow to indicate ...

Страница 14: ...ow on the right side of the screen indicates that you can scroll right to see more of the expression In numeric editors such as the window screen Chapter 3 a long expression scrolls to the right and left in both Classic and MathPrint modes Tip Press y to move the cursor to the end of the line Press y to move the cursor to the beginning of the line When an entry is executed on the home screen the a...

Страница 15: ...d execute the command again to display the answer Press or to move the cursor to the entry or answer you want to copy and then press Í The TI 84 Plus C highlights the entry the cursor is on to help you select your desired choice The entry or answer that you copied is automatically pasted on the current input line at the cursor location Note If the cursor is in a MathPrint expression press t to mov...

Страница 16: ...atus bar when the cursor is in the active entry area Mode settings do not display when the cursor is in the home screen history since the mode may have been different for previous calculations 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 con...

Страница 17: ...t permutations combinations and factorials Quick MathPrint matrix entry when available Names of function variables from the VARS Y VARS menu To open a shortcut menu press t plus the F key that corresponds to the menu that is for FRAC _ for FUNC for MTRX a for YVAR or b for special menus within interactive graph activities such as DRAW or QuickPlot and Fit Equation and more To select a menu item ei...

Страница 18: ...able to use where input is allowed If the calculator is in Classic mode or if a screen is displayed that does not support MathPrint display entries will be displayed in Classic display The MTRX menu is only available in MathPrint mode on the home screen and in the Y editor Note Shortcut menus may not be available if t plus F key combinations are used by an application that is running Busy Indicato...

Страница 19: ...olid rectangle A character is entered at the cursor any existing character is overwritten Insert Underline __ A character is inserted in front of the cursor location Second Reverse arrow Þ A 2nd character is entered or a 2nd operation is executed Alpha Reverse A Ø An alpha character is entered SOLVE is executed or shortcut menus are displayed Full Checkerboard rectangle No entry the maximum charac...

Страница 20: ...ghted Defaults are highlighted below The following pages describe the mode settings in detail Note When you press z the cursor is on NORMAL by default Press to switch between the MathPrint and Classic modes MATHPRINT CLASSIC Controls whether inputs and outputs on the home screen and in the Y editor are displayed as they are in textbooks NORMAL SCI ENG Numeric notation FLOAT 0 1 2 3 4 5 6 7 8 9 Num...

Страница 21: ...ocation MATHPRINT CLASSIC MathPrint mode displays most inputs and outputs the way they are shown in textbooks such as 1 2 3 4 and x2 x d 1 2 Classic mode displays expressions and answers as if written on one line such as 1 2 3 4 Note If you switch between these modes most entries will be preserved however matrix calculations will not be preserved GOTO 2ND FORMAT GRAPH No Yes Shortcut to the Format...

Страница 22: ...tation but the answer cannot display in 10 digits or the absolute value is less than 001 the TI 84 Plus C expresses the answer in scientific notation FLOAT 0 1 2 3 4 5 6 7 8 9 Float floating decimal mode displays up to 10 digits plus the sign and decimal FIX 0123456789 decimal mode specifies the number of digits 0 through 9 to display to the right of the decimal for decimal answers The decimal set...

Страница 23: ...CK plotting mode on the TI 84 Plus C is equivalent to the CONNECTED plotting mode on the TI 84 Plus graphing calculator DOT THICK plotting mode is a quick way to reset all Y line styles to a large dot and plots only the calculated points of the selected functions You can change individual line styles in the Y editor Note The DOT THICK plotting mode on the TI 84 Plus C is equivalent to the DOT plot...

Страница 24: ...th n and d must be real numbers For example you can enter the answer is displayed as a decimal value but if you enter a data type error displays To perform division with a complex number in the numerator or denominator use regular division instead of the n d template See the complete guidebook for complete details on complex numbers and how the TI 84 Plus C functions work with complex number entri...

Страница 25: ...c displays answers as integers or decimal numbers Frac Approx attempts a fraction conversion using the number of decimals carried by the graphing calculator A fraction answer may be exact or approximate for any real number result Note The Answers mode setting also affects how values in sequences lists and tables are displayed Choose Dec or Frac to ensure that values are displayed in either decimal...

Страница 26: ...mpute directly from the wizard If a command or function is accessed from N the command or function will paste without wizard support Use Catalog Help for more syntax help when needed To use Catalog Help select a menu item and then press Ã Off The function or command will paste to the cursor location with no syntax help wizard SET CLOCK Use the clock to set the time date and clock display formats U...

Страница 27: ...tforward sequence EOS evaluates the functions in an expression in this order 1 Press or to highlight each field Press Í to select the date and time format Press and type a number for the year month date hour and minute fields 2 To save changes press to highlight SAVE and then press Í 1 Press y N 2 Press or to scroll the CATALOG until the selection cursor points to ClockOff or ClockOn 3 Press Í Í O...

Страница 28: ...calculators may evaluate 1à2X as 1à 2 X Chapter 2 in the guidebook Parentheses All calculations inside a pair of parentheses are completed first For example in the expression 4 1 2 EOS first evaluates the portion inside the parentheses 1 2 and then multiplies the answer 3 by 4 Negation To enter a negative number use the negation key Press Ì and then enter the number On the TI 84 Plus C negation is...

Страница 29: ... their arguments or a combination of these elements An expression evaluates to a single answer On the TI 84 Plus C you enter an expression in the same order as you would write it on paper For example pR2 is an expression You can use an expression on the home screen to calculate an answer In most places where a value is required you can use an expression to enter a value Entering an Expression To c...

Страница 30: ... out of the MathPrint template and continue entering the expression Calculate 3 76 P L7 9 5 2 log 45 MathPrint 3 Ë 76 Ì 7 Ë 9 Ã y C 5 Ã 2 45 Í Multiple Entries on a Line To enter two or more expressions or instructions on a line separate them with colons ƒ All instructions are stored together in last entry ENTRY Entering a Number in Scientific Notation 1 Enter the part of the number that precedes ...

Страница 31: ...ClrDraw is an instruction that clears any drawn elements from a graph Instructions cannot be used in expressions In general the first letter of each instruction name is uppercase Some instructions take more than one argument as indicated by an open parenthesis at the end of the name For example on the TI 84 Plus C Circle requires three arguments and has two optional arguments Circle X Y radius col...

Страница 32: ...the next Y var Í Evaluates an expression or executes an instruction On a line with text on the home screen clears the current line On a blank line on the home screen clears everything on the home screen In an editor clears the expression or value where the cursor is located it does not store a zero Deletes a character at the cursor this key repeats y 6 Changes the cursor to an underline __ inserts...

Страница 33: ...ic Var will not include the Background Image behind your graphing area Both Image Vars and Pic Vars are stored and run in Flash archive not in RAM They are both accessible in the VARS menu Image Vars and Pic Vars can only be shared with another TI 84 Plus C graphing calculator TI 84 Plus Pic Vars cannot be shared between the TI 84 Plus and the TI 84 Plus C graphing calculators If you perform a RAM...

Страница 34: ... Chapter 11 in the guidebook Programs have user defined names and share memory with variables Chapter 16 in the guidebook Variable Type Names Real numbers including fractions A B Z q Complex numbers A B Z q Matrices ãAä ãBä ãCä ãJä Lists L1 L2 L3 L4 L5 L6 and user defined names Functions Y1 Y2 Y9 Y0 Parametric equations X1T and Y1T X6T and Y6T Polar functions r1 r2 r3 r4 r5 r6 Sequence functions u...

Страница 35: ...AppVars is a variable holder used to store variables created by independent applications You cannot edit or change variables in AppVars unless you do so through the application which created them Storing Variable Values Storing Values in a Variable Values are stored to and recalled from memory using variable names When an expression containing the name of a variable is evaluated the value of the v...

Страница 36: ... the VARS 4 Picture Background the BACKGROUND menu does not display the asterisk ä Recalling Variable Values Using Recall RCL To recall and copy variable contents to the current cursor location follow these steps To leave RCL press 1 Press y K RCL and the edit cursor are displayed on the bottom line of the screen 2 Enter the name of the variable in one of five ways Press ƒ and then the letter of t...

Страница 37: ...tions You can select color and line style draw points on a graph and choose an equation to fit the drawn points You can then store the results of the plot and equation For details refer to Chapter 12 in the guidebook QuickPlot and Fit Equation is an option in the menu Prior to starting the QuickPlot and Fit Equation interactive feature on the graph area be sure to set your Background Image Var and...

Страница 38: ...lso 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 List and matrix answers cannot be copied and pasted to the new entry line For more information on copying and pasting previous entries see Scrolling Through Previous Entries o...

Страница 39: ... y Z Í Continuing an Expression You can use Ans as the first entry in the next expression without entering the value again or pressing y Z On a blank line on the home screen enter the function The TI 84 Plus C pastes the variable name Ans to the screen then the function 5 2 Í 9 Ë 9 Í Storing Answers To store an answer store Ans to a variable before you evaluate another expression Note nPr nCr and ...

Страница 40: ...o is highlighted A number or letter identifies each menu item s place in the menu The order is 1 through 9 then 0 then A B C and so on if appropriate When the menu continues beyond the displayed items a down arrow replaces the colon next to the last displayed item When a menu item ends in an ellipsis the item displays a secondary menu or editor when you select it When an asterisk ä appears to the ...

Страница 41: ...MATH menu is displayed as a full screen Note If a context help message is in the status bar when you press a menu which temporarily replaces the screen that context help will remain in the status bar as a reminder that you are working within a context After you select an item from a menu the screen where you are working usually is displayed again Some keys access more than one menu When you press ...

Страница 42: ...cter or q If no items begin with that character the cursor moves beyond it to the next item Leaving a Menu without Making a Selection You can leave a menu without making a selection in any of four 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 Press or to move the cursor to th...

Страница 43: ...ackground and 5 Statistics each access more than one secondary menu Selecting a Variable from the VARS Menu or VARS Y VARS Menu To display the VARS Y VARS menu press 1 Function 2 Parametric and 3 Polar display secondary menus of the Y function variables VARS Y VARS COLOR 1 Window X Y T q and U V W variables 2 Zoom ZX ZY ZT Zq and ZU variables 3 GDB Graph database variables 4 Picture Background Pic...

Страница 44: ... Select the type of variable such as 2 Zoom from the VARS menu or 3 Polar from the VARS Y VARS menu A secondary menu is displayed 3 Press or to display other secondary menus 4 Select a variable name from the menu It is pasted to the cursor location Selecting an argument from the VARS COLOR Menu To display the VARS COLOR menu press To select an argument from the VARS COLOR menu follow these steps 1...

Страница 45: ... group Grouping also saves space on your calculator by copying variables from RAM to Flash archive Grouping using the GROUP feature on the graphing calculator is for sharing files in the classroom and on the web TI Connect software for PC and TI Connect software for Mac each have a grouping file feature that is best for storing graphing calculator files on the computer See the help file in the TI ...

Страница 46: ...TI Connect software at education ti com go download The 3 5 MB archive space lets you store up to 216 applications at one time on the TI 84 Plus C Applications can also be stored on a computer for later use or linked unit to unit For details refer to Chapter 18 in the guidebook Archiving You can store variables in the TI 84 Plus C user data archive a protected area of memory separate from RAM The ...

Страница 47: ... can enter and save up to 10 matrices and perform standard matrix operations on them For details refer to Chapter 10 in the guidebook Lists You can enter and save as many lists as memory allows for use in statistical analyses You can attach formulas to lists for automatic computation You can use lists to evaluate expressions at multiple values simultaneously and to graph a family of curves For det...

Страница 48: ...ication Link The TI 84 Plus C Silver Edition has a USB port using a USB unit to unit cable to connect and communicate with another TI 84 Plus C Silver Edition TI 84 Plus Silver Edition or TI 84 Plus The TI 84 Plus C also has an I O port using an I O unit to unit cable to communicate with a TI 84 Plus C Silver Edition TI 84 Plus Silver Edition TI 84 Plus TI 83 Plus Silver Edition TI 83 Plus TI 83 T...

Страница 49: ...the TI Rechargeable Battery in a TI 84 Plus C graphing calculator turn it on The battery status icon on the upper right of the screen gives information on the battery life 1 Lift the tab at the bottom edge of the faceplate away from the TI 84 Plus C Silver Edition case 2 Carefully lift the faceplate away from the unit until it releases Be careful not to damage the faceplate or the keyboard 1 Align...

Страница 50: ...bles if your battery power gets low Recharging the TI Rechargeable Battery You should make sure the TI 84 Plus C battery is charged for classroom use and before exams Use one of the following options to charge the battery in the TI 84 Plus C graphing calculator Icon Meaning 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 ch...

Страница 51: ...able Battery is fully charged the graphing calculator draws power in the following order First from a connected external power source such as A computer connected through a USB computer cable A TI wall adapter may be sold separately Second from the TI Rechargeable Battery Replacing TI Rechargeable Batteries Take these precautions when replacing rechargeable batteries Use only the charger recommend...

Страница 52: ...ion 2 Remove the panel 3 Remove the old battery 4 Insert the white connector of the new battery into the jack located at the top of the battery compartment 5 Thread the wire into the case to secure it Insert the rechargeable battery into its compartment ...

Страница 53: ...sed to charge the TI Rechargeable Battery in the TI 84 Plus C Silver Edition graphing calculator The charging station has 10 slots and each slot can accommodate a TI 84 Plus C Silver Edition graphing calculator Note It is not necessary to fill all the slots in the charging station to charge batteries The charging station is designed to be easy to use and easy to move when needed in a different cla...

Страница 54: ...ider proximity to a power source such as a power strip or wall outlet Preparing Charging Stations for Use The TI 84 Plus C Charging Station is shipped with the following components in each package A TI 84 Plus C Charging Station 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 int...

Страница 55: ...eel a slight resistance continue pushing down until the graphing calculator is seated When the TI 84 Plus C graphing calculator is properly seated in a slot the LED light on the side of the calculator turns amber to indicate it is charging Charging Batteries The TI 84 Plus C Silver Edition graphing calculator uses a Li Ion TI Rechargeable Battery The charging process starts automatically when a gr...

Страница 56: ...You cannot damage the charging station by leaving it plugged in for extended periods of time Also you cannot damage the batteries by leaving them in the charging station beyond the time needed to fully charge them Transferring the OS from calculator to calculator You can transfer the operating system from one calculator to another using a USB unit to unit cable or an I O unit to unit cable sold se...

Страница 57: ...ror message with a short description Appendix B describes each error type and possible reasons or hints about the most frequent ways an error occurs If you select 1 Quit or press y 5 or then the home screen is displayed If you select 2 Goto then the previous screen is displayed with the cursor at or near the error location Note If a syntax error occurs in the contents of a Y function during progra...

Страница 58: ...ence for what you can SEND and RECEIVE Note Not all TI 84 Plus C graphing calculator files are compatible with other TI 84 Plus Family graphing calculator files because of the high resolution of the TI 84 Plus C color screen In general numeric files not limited to lists variables matrices and functions are shared between these graphing calculators but Apps are not shared between these graphing cal...

Страница 59: ...n the latest OS version will not transfer to graphing calculators with an earlier OS version App Vars and Programs should be reviewed for use after the transfer between the TI 84 Plus Family and TI 84 Plus C graphing calculators Some App Vars may not set up an App as expected Some Programs will need to be modified due to the difference in screen resolution and new commands You may receive a versio...

Страница 60: ...56 Getting Started with the TI 84 Plus C Silver Edition ...

Страница 61: ...ces contact TI by e mail or visit the TI Internet address Service and Warranty Information For information about the length and terms of the warranty or about product service refer to the warranty statement enclosed with this product or contact your local Texas Instruments retailer distributor Home Page education ti com KnowledgeBase and e mail inquiries education ti com support Phone 800 TI CARES...

Страница 62: ...58 ...

Страница 63: ... 2 Y editor 2 color on the TI 84 Plus C 1 complex modes a bi re qi 20 numbers 20 contrast display 8 cursors 15 28 D decimal mode float or fixed 18 Degree angle mode 18 display brightness 8 display cursors 15 Displaying the Clock Settings 22 E E exponent 18 26 edit keys table 27 Eng engineering notation mode 18 ENTRY last entry key 34 entry cursor 15 EOS Equation Operating System 23 Equation Operat...

Страница 64: ...Float decimal 18 Full screen 20 Func graphing 19 G T screen 20 Horiz screen 20 Normal notation 18 Par Param graphing 19 Pol Polar graphing 19 Radian angle 18 re i complex polar 20 Real 20 Sci notation 18 Seq graphing 19 Simul graphing order 19 N n d 21 negation 24 Normal notation mode 18 O order of evaluating equations 23 P Par Param parametric graphing mode 19 parentheses 24 Pol Polar polar graph...

Страница 65: ...rgeable Batteries charging 51 TI 84 Plus C Charging Stations 49 storing 52 TI Navigator software and the TI 84 Plus C 1 troubleshooting 52 U Un d 21 UnArchive 32 V variables complex 30 displaying and storing values 31 graph databases 30 graph pictures 30 list 30 matrix 30 real 30 recalling values 32 types 30 user and system 30 VARS and Y VARS menus 39 VARS menu GDB 39 Picture 39 Statistics 39 Stri...

Страница 66: ...62 ...

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