TI-84 Plus CE Graphing Calculator For Dummies

by Jeff McCalla

Overview

You and your trusty TI-84+ can ace math, together

Graphing calculators are an essential tool in many high school and college math courses. TI-84 Plus CE Graphing Calculator For Dummies teaches you how to use these handy little machines with confidence, for basic math and far, far beyond. Packed with insider tips, common mistakes to avoid, and updates on the newest products available, this is the must-have reference to get the most out of your graphing calculator. You’ll learn how to navigate the home screen, menus, and mode settings. And we’ll teach you how to use your calculator to, uh, do math—starting with basic arithmetic functions and stepping up through matrices, complex numbers, and beyond. You can even learn about probability and how to conduct statistical data analysis with your TI-84+. Get graphing!

• Grasp the basics of using your TI-84+ graphing calculator
• Learn how to use shortcut menus to enter fractions, matrices and logarithms (with a change of base!)
• Figure out how to make charts, scatter plots, and more
• Get started programming in Python on the new TI-84 Plus CE Python Edition
• If you have the older TI-84+, look for tips that point out keystroke and functionality differences

This edition of TI-84 Plus CE Graphing Calculator For Dummies lets you do everything there is to do with the very latest TI-84+ models. Whatever kind of math you’re doing, you’ll get some quality screen time in, thanks to Dummies.

Product Details

ISBN-13:	9781119887607
Publisher:	Wiley
Publication date:	09/14/2022
Edition description:	3rd ed.
Pages:	320
Sales rank:	413,375
Product dimensions:	7.20(w) x 9.00(h) x 0.80(d)

About the Author

Jeff McCalla teaches Algebra II and is the Test Prep Coordinator at St. Mary’s Episcopal School in Memphis, Tennessee. As a regional instructor for Texas Instruments, Jeff has presented sessions at conferences all over the country. In 2009, he received the Presidential Award for Excellence in Science & Mathematics Teaching.

Table of Contents

Introduction 1

About This Book 1

Foolish Assumptions 2

Icons Used in This Book 3

Beyond the Book 3

Where to Go from Here 3

Part 1 Making Friends with the Calculator 5

Chapter 1 Starting with the Basics 7

Why Didn't I Think of That? 8

Charging the Battery 9

Turning the Calculator On and Off 11

Using the Keyboard 12

Accessing the functions in blue 12

Using the alpha key to write words 12

Using the enter key 13

Using the χ, τ, θ, η key 13

Using the arrow keys 13

Keys to remember 13

What Is the Home Screen? 14

The Busy Indicator 14

Editing Entries 14

Copying and Pasting 15

Using Menus 16

Accessing a menu 16

Scrolling a menu 17

Selecting menu items 17

Setting the Mode 18

MathPrint mode versus Classic mode 18

Using the Catalog 22

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 Numeric 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 PlySmIt2 App 48

Finding the roots of a polynomial 48

Solving systems of equations 50

Part 2 Taking Your Calculator Relationships to the Next Level 53

Chapter 5 Working with Complex Numbers 55

Setting the Mode 55

Entering Complex Numbers 56

Interpreting Strange-looking Results 57

Using the CMPLX menu 58

Finding the conjugate of a complex number 59

Finding the real and imaginary parts of a complex number 59

Finding the polar angle of a complex number 59

Finding the magnitude (modulus) of a complex number 60

Displaying a complex result in polar or rectangular form 60

Chapter 6 Understanding the Math Menu and Submenus 61

Getting to Know the Math Menu and Submenus 61

Accessing Catalog Help from the Math Menu 62

The Math MATH Submenu 63

Converting between decimals and fractions 63

Cubing and taking cube roots 64

Taking the xth root 64

Finding the location of maximum and minimum values 64

Using numerical differentiation and integration templates 65

Using summation and logarithm templates 66

The Math NUM Submenu 66

Finding the absolute value 66

Rounding numbers 67

Finding the integer and fractional parts of a value 67

Using the greatest-integer function 67

Finding minimum and maximum values in a list of numbers 67

Finding the least common multiple and greatest common divisor 68

Finding the remainder 68

Chapter 7 The Angle and Test Menus 69

The Angle Menu 70

Converting degrees to radians 70

Converting radians to degrees 71

Converting between degrees and DMS 72

Entering angles in DMS measure 72

Overriding the mode of the angle 73

Converting rectangular and polar coordinates 73

The Test Menu 74

Understanding Boolean logic 74

Comparing numbers 74

Testing equivalent expressions 75

Using Logic Commands 76

Using Conditions 77

Chapter 8 Creating and Editing Matrices 79

Entering Matrices 80

Storing a Matrix 81

Matrix Arithmetic 81

Evaluating the Determinant and Other Matrix Operations 84

Solving a System of Equations 85

A-1 ^* B method 85

Augmenting matrices method 87

Part 3 Graphing and Analyzing Functions 89

Chapter 9 Graphing Functions 91

Entering Functions 92

Formatting Your Graph 93

Graphing Functions 93

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

Introducing the Improved Transformation App 102

Using Preset Parent Functions 104

Quitting the Transformation App 104

Graphing Piecewise Functions Using the Template 105

Graphing Trig Functions 107

Viewing the Function and Graph on the Same Screen 108

Chapter 10 Exploring Functions 111

Tracing a Graph 112

Changing the TraceStep 113

Moving the Trace cursor to any x-vaiue in the graphing window 113

Using Zoom Commands 114

Storing and recalling your favorite graphing window 119

Displaying Functions in a Table 120

Automatically generated table 120

User-generated table 122

Editing a function in a table 123

Clearing a Table 123

Viewing the Table and the Graph on the Same Screen 124

Chapter 11 Evaluating Functions 127

Finding the Value of a Function 128

Using your graph to find the value of a function 128

Using your calculator to find the value of a function 129

Composing Functions 130

Using your graph to compose functions 130

Using your calculator to compose functions 131

Finding the Zeros of a Function 132

Finding Min and Max 133

Finding Points of Intersection 134

Finding the Slope of a Curve 135

Evaluating a Definite Integral 136

Graphing Derivatives to Find Critical Points 138

Solving Equations by Graphing 139

Drawing the Inverse of a Function 140

Drawing the Tangent of a Function 141

Chapter 12 Graphing Inequalities 143

Graphing One-Variable Inequalities 143

Starting Inequality Graphing 145

Entering Functions and Inequalities 146

Entering inequalities in the Y= editor 146

Entering inequalities in the X= editor 147

Exploring a Graph 148

Shading unions and intersections 149

Finding the points of intersection 149

Other ways to explore a graph 151

Storing Data Points 151

Clearing the INEQX and INEQY lists 152

Viewing stored data 152

Quitting Inequality Graphing 153

Chapter 13 Graphing Parametric Equations 155

Changing the Mode 156

Selecting the Graph Style 156

Entering Parametric Equations 157

Setting the Window 158

Graphing Parametric Equations 159

Using Zoom to Change the Window 160

Using Trace to Evaluate a Parametric Equation 160

Viewing the Table of a Parametric Graph 161

Taking the Derivative of Parametric Equations 162

Chapter 14 Graphing Polar Equations 163

Changing the Mode 164

Selecting the Graph Style 165

Entering Polar Equations 165

Setting the Window 166

Graphing Polar Equations 167

Using Zoom to Change the Window 168

Using Trace to Evaluate a Polar Equation 169

Viewing the Table of a Polar Graph 170

Taking the Derivative of Polar Equations 170

Part 4 Working with Probability and Statistics 173

Chapter 15 Probability 175

Evaluating Factorials 175

Permutations and Combinations 176

Using the Binomial Theorem 177

Generating Random Numbers 179

Generating random integers 179

Generating random integers with no repetition 180

Generating random decimals 180

Seeding the random number generator 181

Chapter 16 Dealing with Statistical Data 183

Entering Data 183

Deleting and Editing Data 185

Inserting Data Lists 186

Using Formulas to Enter Data 187

Copying and Recalling Data Lists 188

Sorting Data Lists 189

Sorting data lists while keeping the rows intact 191

Chapter 17 Analyzing Statistical Data 193

Plotting One-Variable Data 193

Constructing a histogram 194

Adjusting the class size of a histogram 196

Constructing a box plot 197

Plotting Two-Variable Data 197

Tracing Statistical Data Plots 198

Analyzing Statistical Data 199

One-variable data analysis 200

Two-variable data analysis 201

Performing regressions 202

Graphing a regression model 204

Graphing a residual plot 205

Using Manual-Fit 205

Using statistics commands on the Home screen 207

Part 5 Doing more with Your Calculator 209

Chapter 18 Communicating with a PC Using TI Connect CE Software 211

Downloading TI Connect 212

Installing and Running TI Connect 212

Connecting Calculator and PC 214

Transferring Files 215

Using the Calculator Explorer Workspace to Transfer Files from Calculator to Computer 217

Upgrading the OS using a TI CE Bundle file 217

Chapter 19 Communicating Between Calculators 221

Linking Calculators 221

Transferring Files 222

Using Resend to Multiply Your Efforts 224

Chapter 20 Fun with Images 227

Inserting Photo Images as a Background of a Graph 227

Using TI Connect CE Software to Transfer Images 228

Using Quick Plot & Fit Equation 229

Chapter 21 Managing Memory 231

Checking Available Memory 231

Deleting and Archiving to Preserve Memory 232

Resetting the Calculator 233

Grouping and Ungrouping Programs 234

Garbage Collecting 236

Part 6 The Part of Tens 237

Chapter 22 Ten Essential Skills 239

Copying and Pasting 239

Converting a Decimal to a Fraction 239

Changing the Mode 240

Accessing Hidden Menus 240

Entering Imaginary Numbers 240

Storing a variable 241

Graphing a Function 241

Finding the Intersection Point 242

Graphing a Scatter Plot 242

Performing a Linear Regression 242

Chapter 23 Ten Common Errors 243

Using Instead of to Indicate That a Number Is Negative 243

Indicating the Order of Operations Incorrectly by Using Parentheses 243

Improperly Entering the Argument for Menu Functions 244

Accidentally Deleting a List 244

Entering an Angle in Degrees in Radian Mode 245

Graphing Trigonometric Functions in Degree Mode 245

Graphing Functions When Stat Plots Are Active 245

Inadequately Setting the Display Contrast 246

Setting the Window Inappropriately for Graphing 246

Accidentally Deactivating a Function 246

Chapter 24 Ten Common Error Messages 249

Argument 249

Bad Guess 250

Dimension Mismatch 250

Divide by Zero 250

Invalid 250

Invalid Dimension 251

No Sign Change 251

Singular Matrix 251

Syntax 251

Window Range 251

Part 7 Appendices 253

Appendix A Creating Calculator Programs 255

Creating and Saving a Program on the Calculator 255

Editing a Program on the Calculator 257

Executing a Calculator Program 257

Deleting a Program from the Calculator 258

Appendix B Controlling Program Input and Output 259

Using Input Commands 260

Using the Input command 260

Using the Prompt command 261

Using Output Commands 262

Using a program to write text 262

Using the Disp command 263

Using the Output command 263

Using a Program to Display a Graph 264

Changing the Color and Graph Style of a Function 265

Changing the Color of Text on a Graph 265

Housekeeping Issues 266

Appendix C Controlling Program Flow 269

Entering Control Commands in a Program 270

Using Decision Commands 270

The If command 270

The If … Then … End Command 271

The If … Then … Else … End Command 272

Using Looping Commands 272

The While … End command 272

The Repeat … End Command 273

The For … End Command 274

Using Branching Commands 274

Using the Goto command 275

Creating a menu 276

Stopping a Program 278

Pausing a Program 278

Executing an External Program as a Subroutine 279

Appendix D Introducing Python Programming 281

Getting to Know the Workspaces 281

Creating a Python program on the calculator 282

Running a Python program on the calculator 283

Managing a Python Program in your Calculator 284

Appendix E Mastering the Basics of Python Programming 287

Using Input Commands in a Python Program 287

Using decision commands 290

Using the Tools menu to save time 292

Index 293