Ti-84 Plus Graphing Calculator For Dummies
Get up-to-speed on the functionality of your TI-84 Plus calculator

Completely revised to cover the latest updates to the TI-84 Plus calculators, this bestselling guide will help you become the most savvy TI-84 Plus user in the classroom! Exploring the standard device, the updated device with USB plug and upgraded memory (the TI-84 Plus Silver Edition), and the upcoming color screen device, this book provides you with clear, understandable coverage of the TI-84's updated operating system.

  • Details the new apps that are available for download to the calculator via the USB cable
  • Walks you through menus and basic arithmetic
  • Addresses graphing and analyzing functions as well as probability and statistics functions
  • Explains how to use the calculator for geometry
  • Reviews communicating with PCs and other calculators

TI-84 Plus Graphic Calculator For Dummies, 2nd Edition is the perfect solution for getting comfortable with the new line of TI-84 calculators!

1114014904
Ti-84 Plus Graphing Calculator For Dummies
Get up-to-speed on the functionality of your TI-84 Plus calculator

Completely revised to cover the latest updates to the TI-84 Plus calculators, this bestselling guide will help you become the most savvy TI-84 Plus user in the classroom! Exploring the standard device, the updated device with USB plug and upgraded memory (the TI-84 Plus Silver Edition), and the upcoming color screen device, this book provides you with clear, understandable coverage of the TI-84's updated operating system.

  • Details the new apps that are available for download to the calculator via the USB cable
  • Walks you through menus and basic arithmetic
  • Addresses graphing and analyzing functions as well as probability and statistics functions
  • Explains how to use the calculator for geometry
  • Reviews communicating with PCs and other calculators

TI-84 Plus Graphic Calculator For Dummies, 2nd Edition is the perfect solution for getting comfortable with the new line of TI-84 calculators!

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Ti-84 Plus Graphing Calculator For Dummies

Ti-84 Plus Graphing Calculator For Dummies

Ti-84 Plus Graphing Calculator For Dummies

Ti-84 Plus Graphing Calculator For Dummies

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Overview

Get up-to-speed on the functionality of your TI-84 Plus calculator

Completely revised to cover the latest updates to the TI-84 Plus calculators, this bestselling guide will help you become the most savvy TI-84 Plus user in the classroom! Exploring the standard device, the updated device with USB plug and upgraded memory (the TI-84 Plus Silver Edition), and the upcoming color screen device, this book provides you with clear, understandable coverage of the TI-84's updated operating system.

  • Details the new apps that are available for download to the calculator via the USB cable
  • Walks you through menus and basic arithmetic
  • Addresses graphing and analyzing functions as well as probability and statistics functions
  • Explains how to use the calculator for geometry
  • Reviews communicating with PCs and other calculators

TI-84 Plus Graphic Calculator For Dummies, 2nd Edition is the perfect solution for getting comfortable with the new line of TI-84 calculators!


Product Details

ISBN-13: 9781118592151
Publisher: Wiley
Publication date: 06/17/2013
Series: For Dummies Books
Edition description: 2nd ed.
Pages: 352
Sales rank: 597,148
Product dimensions: 7.30(w) x 9.10(h) x 0.80(d)

About the Author

Jeff McCalla is a mathematics teacher at St. Mary's Episcopal School in Memphis, TN. He cofounded the TI-Nspire SuperUser group, and received the Presidential Award for Excellence in Science & Mathematics Teaching.

C.C. Edwards is an educator who has presented numerous workshops on using TI calculators.

Read an Excerpt

Ti-84 Plus Graphing Calculator For Dummies


By C. C. Edwards

John Wiley & Sons

Copyright © 2013 John Wiley & Sons, Ltd
All rights reserved.
ISBN: 978-1-118-59215-1


CHAPTER 1

Starting with the Basics


In This Chapter

* Turning the calculator on and off

* Using the keyboard

* Utilizing the menus

* Setting the mode of the calculator

* Using the Catalog


The most popular calculator in the world just got a makeover! In this book, you find out how to take advantage of the improvements that have been made to the TI-84 Plus, as well as all of the built-in functionality that has not changed. The best way to use your calculator to the fullest is to read this book and start playing with the device.

The TI-84 Plus C Silver Edition graphing calculator is loaded with many useful features. With it, you can solve equations of all types. You can graph and investigate functions, parametric equations, polar equations, and sequences. You can use it to analyze statistical data and to manipulate matrices. You can even use it to calculate mortgage payments.

What if you own the TI-84 Plus and not the TI-84 Plus C? No worries! The vast majority of the steps will be exactly the same for both calculators. You'll see a difference in the appearance of the graph screen — the TI-84 Plus C has a higher resolution color screen. If you own the TI-84 Plus, ignore any steps referencing color and skip Chapter 22 (about inserting color images) altogether.

If you've never used a graphing calculator before, you may at first find it a bit intimidating. After all, it contains about two dozen menus, many of which contain three or four submenus. But it's really not that hard to get used to using the calculator. After you get familiar with what the calculator is capable of doing, finding the menu that houses the command you need is quite easy. And you have this book to help you along the way.


Why Didn't I Think of That?

You may have the same reaction that I did to some of the changes that have been made to the calculator: "Why didn't I think of that?" It's possible that you did actually! Many of the changes to the TI-84 Plus are a direct result of feedback received from teachers and students. After all, Texas Instruments is committed to providing the best tools for the teaching and learning of mathematics and science.

What does the C stand for in TI-84 Plus C? Color! Say goodbye to having trouble distinguishing functions when you're graphing more than one function on the same screen. Although some of the improvements are subtle, you'll notice others the first time you pick up your new calculator. Here's a small sampling of the changes:

[check] New menu options: I love that all additional menu options have been strategically placed at the end of menus. For example, a new option in the Stat CALC menu, QuickPlot & Fit–EQ as illustrated in the first screen in Figure 1-1. Have you memorized keystrokes, like [ZOOM][6] for ZStandard? No problem! The functionality you know hasn't changed.

[check] Status Bar: A quick glance at the top of your screen informs you of the mode settings (like Radian or Degree) as well as a battery status icon. See the top of any of the screens in Figure 1-1. The Status Bar is always there whether you're working on the current line of the Home screen, graph, or table!

[check] Higher resolution LCD backlit screen: Not quite HD quality, but the new screen has more than seven times as many graph area pixels as the original (266×166 versus 96×64)! Plus, you can work on problems at night on a screen that's backlit.

[check] Border on graph screen: Helpful info like function names and coordinates of intersection points are kept separate from the graph, as shown in the second screen in Figure 1-1. Whoever thought of this is brilliant!

[check] Table enhancements: Separator lines and color-coded lists (matching the functions) are more pleasing to the eye. Built-in tips called Context Help are located at the top of the screen, including hints like Press + for ΔTbl. Check out the new table look in the third screen in Figure 1-1.


Think you've seen it all? Not even close. I explain these improvements and much more — just keep reading.


Charging the Battery

The TI-84 Plus C uses a Li–ion battery, similar to the one in your cellphone, that holds a charge for up to two weeks. Texas Instruments (TI) recommends charging your battery for at least four hours for peak performance. On the right side of your calculator, an LED light lights up during the recharging process. An amber color indicates your calculator is charging, and a green color indicates your calculator is fully charged. There are three ways to recharge your calculator battery:


TIP

The TI-84 Plus does not have a rechargeable battery. You must open the back panel and insert four new AAA batteries.

[check] TI Wall Adapter: Simply plug in the adapter that came bundled with your calculator.

[check] USB computer cable: Use the USB computer cable that came with your calculator and a computer to charge your calculator. Plug the USB hub into the computer and plug the mini-USB hub into your calculator.


TIP

Your computer may not recognize the USB computer cable you are using to charge your calculator. If this happens, download TI-Connect software from http://education.ti.com. For more details on downloading and installing TI-Connect, see Chapter 20.

[check] TI-84 C Charging Station: If your classroom has one of these, simply place your calculator in one of the slots of the charging station.


In the top-right part of the screen, a battery status icon indicates the battery level. There are four different battery levels plus a charging icon, as shown in Figure 1-2.


WARNING!

If your battery loses its charge, the RAM memory on your calculator may be cleared. If you have programs or data that you don't want to lose, back up your calculator (see Chapter 23 for more details). Your calculator gives you a warning message, as shown in Figure 1-3.


Turning the Calculator On and Off

Press [ON] to turn the calculator on. To turn the calculator off, press [2nd] and then press [ON]. These keys are in the left column of the keyboard. The [ON] key is at the bottom of the column, and the [2nd] key is the second key from the top of this column.

To prolong the life of the batteries, the calculator automatically turns itself off after five minutes of inactivity. But don't worry — when you press [ON], all your work will appear on the calculator just as you left it before the calculator turned itself off.

The first time you turn on your calculator, you're greeted by an information screen, as shown in Figure 1-4. A few helpful reminders are displayed on the information screen. If you want to see this screen the next time you turn on your calculator, press [2]. Otherwise, press [1] or [ENTER].


TIP

In some types of light, the screen can be hard to see. To increase the contrast, press and release [2nd] and then hold down [up arrow] until you have the desired contrast. To decrease the contrast, press [2nd] and hold [down arrow].


Using the Keyboard

The row of keys under the calculator screen contains the keys you use when graphing. The next three rows, for the most part, contain editing keys, menu keys, and arrow keys. The arrow keys ([right arrow] [left arrow] [up arrow] [down arrow]) control the movement of the cursor. The remaining rows contain, among other things, the keys you typically find on a scientific calculator.


REMEMBER

Keys on the calculator are always pressed one at a time; they are never pressed simultaneously. In this book, an instruction such as [2nd][ON] indicates that you should first press [2nd] and then press [ON].


Accessing the functions in blue

Above and to the left of most keys is a secondary key function written in blue. To access that function, first press [2nd] and then press the key. For example, π is in blue above the [^] key, so to use p in an expression, press [2nd] and then press [^].

Because hunting for the function in blue can be tedious, in this book I use only the actual keystrokes. For example, I make statements like, "π is entered into the calculator by pressing [2nd][^]." Most other books would state, "π is entered into the calculator by pressing [2nd]π."


TIP

When the [2nd] key is active and the calculator is waiting for you to press the next key, the blinking [] cursor symbol is replaced with the [up arrow] symbol.


Using the Α key to write words

Above and to the right of most keys is a letter written in green. To access these letters, first press Α and then press the key. For example, because the letter O is in green above the [7] key, to enter this letter, press Α and then press [7].

Because hunting for letters on the calculator can be tedious, I tell you the exact keystrokes needed to create them. For example, if I want you to enter the letter O, I say, "Press Α[7] to enter the letter O." Most other books would say "Press Α[O]" and leave it up to you to figure out where that letter is on the calculator.


TIP

You must press Α before entering each letter. However, if you want to enter many letters, first press [2nd]Α to lock the calculator in Alpha mode. Then all you have to do is press the keys for the various letters. When you're finished, press Α to take the calculator out of Alpha mode. For example, to enter the word TEST into the calculator, press [2nd]Α[4][SIN][LN][4] and then press Α to tell the calculator that you're no longer entering letters.


TIP

When the calculator is in Alpha mode, the blinking [] cursor symbol is replaced with the [A] symbol. This symbol indicates that the next key you press will insert the green letter above that key. To take the calculator out of Alpha mode, press Α.


Using the [ENTER] key

The [ENTER] key is used to evaluate expressions and to execute commands. After you have, for example, entered an arithmetic expression (such as 5 + 4), press e to evaluate that expression. In this context, the e key functions as the equal sign. Entering arithmetic expressions is explained in Chapter 2.


Using the [X, T, Θ, n] key

[X, T, Θ, n] is the key you use to enter the variable in the definition of a function, a parametric equation, a polar equation, or a sequence. In Function mode, this key produces the variable X. In Parametric mode, it produces the variable T; and in Polar and Sequence modes, it produces the variables θ and n, respectively. For more information, see the "Setting the Mode" section later in this chapter.


Using the arrow keys

The arrow keys ([right arrow], [left arrow], [up arrow], and [down arrow]) control the movement of the cursor. These keys are in a circular pattern in the upper-right corner of the keyboard. As expected, [right arrow] moves the cursor to the right, [left arrow] moves it to the left, and so on. When I want you to use the arrow keys — but not in any specific order — I refer to them all together, as in "Use the [right arrow][left arrow][up arrow][down arrow] keys to place the cursor on the entry."


Keys to remember

REMEMBER

The following keystroke and keys are invaluable:

[check] [2nd][MODE]: This is the equivalent of the Escape key on a computer. It gets you out of whatever you're doing (or have finished doing) and returns you to the Home screen. See the next section for more about the Home screen.

[check] [ENTER]: This key is used to execute commands and to evaluate expressions. When evaluating expressions, it's the equivalent of the equal sign.

[check] [CLEAR]: This is the "erase" key. If you enter something into the calculator and then change your mind, press this key. If you want to erase the contents of the Home screen, repeatedly press this key until the Home screen is blank.


What Is the Home Screen?

The Home screen is the screen that appears on the calculator when you first turn it on. This is the screen where most of the action takes place as you use the calculator — it's where you evaluate expressions and execute commands. This is also the screen you usually return to after you've completed a task such as entering a matrix in the Matrix editor or entering data in the Stat List editor.


REMEMBER

Press [2nd][MODE] to return to the Home screen from any other screen. This combination of keystrokes, [2nd][MODE], is the equivalent of the Escape key on a computer. It always takes you back to the Home screen.


REMEMBER

If you want to clear the contents of the Home screen, repeatedly press [CLEAR] until the Home screen is blank.


The Busy Indicator

If you see a moving dotted ellipse in the upper-right corner of the screen, this indicates that the calculator is busy graphing a function, evaluating an expression, or executing a command.


TIP

If it's taking too long for the calculator to graph a function, evaluate an expression, or execute a command, and you want to abort the process, press [ON]. If you're then confronted with a menu that asks you to select either Quit or Goto, select Quit to abort the process.


Editing Entries

The calculator offers four ways to edit an entry:

[check] Deleting the entire entry:

Use the [right arrow][left arrow][up arrow][down arrow] keys to place the cursor anywhere in the entry and then press [CLEAR] to delete the entry.

[check] Erasing part of an entry:

To erase a single character, use the [right arrow][left arrow][up arrow][down arrow] keys to place the cursor on the character you want to delete and then press [DEL] to delete that character.

[check] Inserting characters:

Because "typing over" is the default mode, to insert characters you must first press [2nd][DEL] to enter Insert mode. When you insert characters, the inserted characters are placed to the left of the cursor. For example, if you want to insert CD between B and E in the word ABEF, you would place the cursor on E to make the insertion.

To insert characters, use the [right arrow][left arrow][up arrow][down arrow] keys to place the cursor at the location of the desired insertion, press [2nd][DEL], and then key in the characters you want to insert. Notice, the cursor does not blink with the typical [] you're used to seeing; instead, it blinks with an underscore. When you're finished inserting characters, press one of the arrow keys to take the calculator out of Insert mode.

[check] Keying over existing characters:

"Type over" is the default mode of the calculator. So if you want to overtype existing characters, just use the [right arrow][left arrow][up arrow][down arrow] keys to put the cursor where you want to start, and then use the keyboard to enter new characters.


Copying and Pasting

Save time by not retyping similar expressions from scratch! Press [2nd][MODE] to access the Home screen.

Press the [up arrow] key to scroll through your previous calculations. When a previous entry or answer is highlighted, press [ENTER] to paste it into your current entry line. See the first two screens in Figure 1-5.

After you have pasted the expression into the current entry line, you can edit the expression as much as you like. See the third screen in Figure 1-5.


TIP

If the answer is in the form of a list or matrix, it cannot be copied and pasted. Instead, copy and paste the expression. Also, notice that the mode settings don't display in the Status bar when you're scrolling through the calculator history.


Using Menus

Most functions and commands that you use are found in the menus housed in the calculator — and just about every chapter in this book refers to them. This section is designed to give you an overview of how to find and select menu items.


(Continues...)

Excerpted from Ti-84 Plus Graphing Calculator For Dummies by C. C. Edwards. Copyright © 2013 John Wiley & Sons, Ltd. Excerpted by permission of John Wiley & Sons.
All rights reserved. No part of this excerpt may be reproduced or reprinted without permission in writing from the publisher.
Excerpts are provided by Dial-A-Book Inc. solely for the personal use of visitors to this web site.

Table of Contents

Introduction 1

About This Book 1

Conventions Used in This Book 2

What You’re Not to Read 2

Foolish Assumptions 3

How This Book Is Organized 3

Part I: Making Friends with the Calculator 3

Part II: Taking Your Calculator Relationship to the Next Level 3

Part III: Graphing and Analyzing Functions 4

Part IV: Working with Probability and Statistics 4

Part V: Doing More with Your Calculator 4

Part VI: The Part of Tens 4

Icons Used in This Book 5

Where to Go from Here 5

Part I: Making Friends with the Calculator 7

Chapter 1: Starting with the Basics 9

Why Didn’t I Think of That? 10

Charging the Battery 11

Turning the Calculator On and Off 12

Using the Keyboard 13

Accessing the functions in blue 13

Using the ALPHA key to write words 14

Using the ENTER key 14

Using the X,T,Θ,n key 15

Using the arrow keys 15

Keys to remember 15

What Is the Home Screen? 15

The Busy Indicator 16

Editing Entries 16

Copying and Pasting 17

Using Menus 18

Accessing a menu 18

Scrolling a menu 18

Selecting menu items 19

Setting the Mode 19

MathPrint mode versus Classic mode 20

Using the Catalog 23

Chapter 2: Doing Basic Arithmetic 25

Entering and Evaluating Expressions 25

Using Exponents and Roots 27

Working in Scientific Notation 28

Getting Familiar with Important Keys 29

Following the Order of Operations 30

Using the Previous Answer 31

Storing Variables 32

Combining Expressions 33

Chapter 3: Dealing with Fractions 35

Setting the Mode 35

Converting Fractions and Decimals 36

Accessing Shortcut Menus 37

Entering Fractions and Mixed Numbers 38

Entering Complex Numbers in Fractions 39

Entering Complex Fractions 39

Chapter 4: Solving Equations 41

Using the Equation Solver 41

Step 1: Enter or edit the equation to be solved 42

Step 2: Guess a solution 43

Step 3: Solve the equation 43

Assigning Values to Variables 44

Finding Multiple Solutions 45

Making strategic guesses 45

Defining the solution bounds 46

Using the Solve Function 47

Discovering the PlySmlt2 App 48

Finding the roots of a polynomial 48

Solving systems of equations 49

Part II: Taking Your Calculator Relationship to the Next Level 51

Chapter 5: Working with Complex Numbers 53

Setting the Mode 53

Entering Complex Numbers 54

Interpreting Strange-looking Results 55

Using the CMPLX menu 56

Finding the conjugate of a complex number 56

Finding the real and imaginary parts of a complex number 56

Finding the polar angle of a complex number 57

Finding the magnitude (modulus) of a complex number 57

Displaying a complex result in polar or rectangular form 58

Chapter 6: Understanding the Math Menu and Submenus 59

Getting to Know the Math Menu and Submenus 59

Accessing Catalog Help from the Math Menu 60

The Math MATH Submenu 61

Converting between decimals and fractions 61

Cubing and taking cube roots 62

Taking the xth root 62

Finding the location of maximum and minimum values 63

Using numerical differentiation and integration templates 63

Using summation and logarithm templates 64

The Math NUM Submenu 65

Finding the absolute value 65

Rounding numbers 65

Finding the integer and fractional parts of a value 65

Using the greatest-integer function 66

Finding minimum and maximum values in a list of numbers 66

Finding the least common multiple and greatest common divisor 67

Finding the remainder 67

Chapter 7: The Angle and Test Menus 69

The Angle Menu 69

Converting degrees to radians 70

Converting radians to degrees 71

Converting between degrees and DMS 71

Entering angles in DMS measure 72

Overriding the mode of the angle 72

Converting rectangular and polar coordinates 73

The Test Menu 73

Understanding Boolean logic 74

Comparing numbers 74

Testing equivalent expressions 75

Using Logic commands 75

Chapter 8: Creating and Editing Matrices 77

Entering Matrices 77

Storing a Matrix 78

Matrix Arithmetic 79

Evaluating the Determinant and Other Matrix Operations 81

Solving a System of Equations 83

A–1*B method 83

Augmenting matrices method 85

Part III: Graphing and Analyzing Functions 89

Chapter 9: Graphing Functions 91

Entering Functions 91

Formatting Your Graph 93

Graphing Functions 96

Turning off Stat Plots (if necessary) 96

Selecting and deselecting a function 97

Adjusting the graph window 97

Stopping or pausing your graph 99

Adjusting Your Color/Line Settings 100

Graphing Families of Functions 102

Graphing Piecewise Functions 102

Graphing Trig Functions 104

Viewing the Function and Graph on the Same Screen 105

Saving and Recalling a Graph 106

Chapter 10: Exploring Functions 109

Tracing a Graph 109

Changing the TraceStep 111

Moving the Trace cursor to any x-value in the graphing window 111

Using Zoom Commands 112

Storing and recalling your favorite graphing window 117

Displaying Functions in a Table 117

Automatically generated table 118

User-generated table 119

Editing a function in a table 120

Clearing a Table 121

Viewing the Table and the Graph on the Same Screen 122

Chapter 11: Evaluating Functions 125

Finding the Value of a Function 125

Using your graph to find the value of a function 126

Using your calculator to find the value of a function 127

Composing Functions 128

Using your graph to compose functions 128

Using your calculator to compose functions 129

Finding the Zeros of a Function 130

Finding Min and Max 131

Finding Points of Intersection 132

Finding the Slope of a Curve 133

Evaluating a Definite Integral 135

Graphing Derivative to Find Critical Points 136

Solving Equations by Graphing 137

Drawing the Inverse of a Function 138

Chapter 12: Graphing Inequalities 141

Graphing One-Variable Inequalities 141

Starting Inequality Graphing 143

Entering Functions and Inequalities 144

Entering inequalities in the Y= editor 144

Changing the color of inequalities 145

Entering inequalities in the X= editor 145

Graphing Inequalities 146

Exploring a Graph 147

Shading unions and intersections 148

Finding the points of intersection 148

Other ways to explore a graph 151

Storing Data Points 151

Clearing the INEQX and INEQY lists 151

Storing points in INEQX and INEQY 152

Viewing stored data 152

Solving Linear Programming Problems 153

Quitting Inequality Graphing 155

Chapter 13: Graphing Parametric Equations 157

Changing the Mode 157

Selecting the Graph Style 158

Entering Parametric Equations 159

Setting the Window 160

Graphing Parametric Equations 161

Using Zoom to Change the Window 161

Using Trace to Evaluate a Parametric Equation 162

Viewing the Table of a Parametric Graph 163

Taking the Derivative of Parametric Equations 164

Chapter 14: Graphing Polar Equations 165

Changing the Mode 166

Selecting the Graph Style 166

Entering Polar Equations 167

Setting the Window 168

Graphing Polar Equations 169

Using Zoom to Change the Window 170

Using Trace to Evaluate a Polar Equation 170

Viewing the Table of a Polar Graph 171

Taking the Derivative of Polar Equations 172

Chapter 15: Graphing Sequences 175

Changing the Mode 175

Selecting the Color 176

Entering Sequences 177

Setting the Window 178

Graphing Sequences 180

Using Trace to Evaluate a Sequence Equation 180

Viewing the Table of a Sequence Graph 181

Graphing a Recursive Sequence 182

Graphing the Fibonacci sequence 183

Graphing a Web Plot 183

Graphing a Phase Plot 185

Graphing Partial Sums of an Infinite Series 186

Part IV: Working with Probability and Statistics 187

Chapter 16: Probability 189

Evaluating Factorials 189

Permutations and Combinations 190

Using the Binomial theorem 191

Generating Random Numbers 192

Generating random integers 192

Generating random integers with no repetition 193

Generating random decimals 194

Seeding the random number generator 194

Chapter 17: Dealing with Statistical Data 197

Entering Data 197

Deleting and Editing Data 199

Inserting Data Lists 200

Using Formulas to Enter Data 201

Copying and Recalling Data Lists 202

Sorting Data Lists 204

Sorting data lists while keeping the rows intact 205

Chapter 18: Analyzing Statistical Data 207

Plotting One-Variable Data 207

Constructing a histogram 208

Adjusting the class size of a histogram 210

Constructing a box plot 211

Plotting Two-Variable Data 211

Tracing Statistical Data Plots 212

Analyzing Statistical Data 213

One-variable data analysis 214

Two-variable data analysis 215

Performing regressions 216

Graphing a regression model 218

Graphing a residual plot 219

Using Manual-Fit 219

Using statistics commands on the Home screen 221

Part V: Doing More with Your Calculator 223

Chapter 19: Using the TVM Solver 225

Calculating Mortgages and Loans 225

Step 1. Access the TVM Solver 226

Step 2. Enter values for five of the six TVM variables 226

Step 3. Solve for the missing TVM variable 228

Making Compound Interest Work for You 229

Step 1. Access the TVM Solver 229

Step 2. Enter values for five of the six TVM variables 229

Step 3. Solve for the missing TVM variable 230

Chapter 20: Communicating with a PC Using TI Connect Software 231

Downloading TI Connect 231

Installing and Running TI Connect 232

Connecting Calculator and PC 233

Transferring Files 234

Using Device Explorer to transfer files from calculator to computer 234

Using Send to TI Device to transfer files from computer to calculator 235

Using the Backup and Restore Tools 236

Upgrading the OS 237

Chapter 21: Communicating Between Calculators 239

Linking Calculators 239

Transferring Files 240

Transferring Files to Several Calculators 242

Chapter 22: Fun with Images 245

Inserting Photo Images as a Background of a Graph 245

Using TI Connect Software to Transfer Images 246

Unit-to-Unit Image Transfer 247

Using Quick Plot & Fit Equation 248

Chapter 23: Managing Memory 251

Checking Available Memory 251

Deleting and Archiving to Preserve Memory 252

Resetting the Calculator 253

Grouping and Ungrouping Programs 254

Garbage Collecting 256

Part VI: The Part of Tens 257

Chapter 24: Ten Essential Skills 259

Copying and Pasting 259

Converting a Decimal to a Fraction 259

Changing the Mode 260

Accessing Hidden Menus 260

Entering Imaginary Numbers 260

Storing a variable 260

Graphing a Function 261

Finding the Intersection Point 261

Graphing a Scatter Plot 262

Performing a Linear Regression 262

Chapter 25: Ten Common Errors 263

Using - Instead of (˗) to Indicate That a Number Is Negative 263

Indicating the Order of Operations Incorrectly by Using Parentheses 263

Improperly Entering the Argument for Menu Functions 264

Accidentally Deleting a List 264

Entering an Angle in Degrees in Radian Mode 265

Graphing Trigonometric Functions in Degree Mode 265

Graphing Functions When Stat Plots Are Active 266

Inadequately Setting the Display Contrast 266

Setting the Window Inappropriately for Graphing 266

Accidentally Deactivating a Function 267

Chapter 26: Ten Common Error Messages 269

Argument 269

Bad Guess 269

Dimension Mismatch 270

Domain 270

Invalid 270

Invalid Dimension 270

No Sign Change 271

Singular Matrix 271

Syntax 271

Window Range 271

Troubleshooting a Calculator that is Not Functioning Properly 271

Appendix A: Creating Calculator Programs 273

Creating and saving a program on the calculator 273

Editing a program on the calculator 275

Executing a Calculator Program 275

Deleting a Program from the Calculator 276

Appendix B: Controlling Program Input and Output 277

Using Input Commands 278

Using the Input command 278

Using the Prompt command 279

Using Output Commands 280

Using a program to write text 280

Using the Disp command 281

Using the Output command 282

Using a Program to Display a Graph 282

Changing the Color and Graph Style of a Function 283

Changing the Color of Text on a Graph 284

Housekeeping Issues 285

Appendix C: Controlling Program Flow 287

Entering Control Commands in a Program 287

Using Decision Commands 288

The If command 288

The If . . . Then . . . End Command 289

The If . . . Then . . . Else End Command 289

Using Looping Commands 290

The While . . . End command 290

The Repeat . . . End Command 291

The For . . . End Command 292

Using Branching Commands 292

Using the Goto command 293

Creating a menu 294

Stopping a Program 296

Pausing a Program 296

Executing an External Program as a Subroutine 297

Index 299

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