TI-84 Plus and TI-84 Plus Silver Edition Guidebook

TI-84 Plus and TI-84 Plus Silver Edition

Guidebook

Note: This guidebook for the TI-84 Plus or TI-84 Plus Silver Edition with operating system (OS) version 2.55MP. If your calculator has a previous OS version, your screens may look different and some features may not be available. You can download the latest OS education.guides.

Important Information

Texas Instruments makes no warranty, either express or implied, including but not limited to any implied warranties of merchantability and fitness for a particular purpose, regarding any programs or book materials and makes such materials available 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 purchase price of this product. Moreover, Texas Instruments shall not be liable for any claim of any kind whatsoever against the use of these materials by any other party.

? 2004?2010 Texas Instruments Incorporated Vernier EasyData, Vernier LabPro, and Vernier Go! Motion are a trademarks of Vernier Software & Technology.

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Contents

Important Information .................................................................................................................... ii

Chapter 1: Operating the TI-84 Plus Silver Edition .................................................................... 1

Documentation Conventions .......................................................................................................... 1 TI-84 Plus Keyboard ......................................................................................................................... 1 Turning On and Turning Off the TI-84 Plus .................................................................................... 3 Setting the Display Contrast ........................................................................................................... 4 The Display ....................................................................................................................................... 5 Interchangeable Faceplates ............................................................................................................ 8 Using the Clock ................................................................................................................................ 9 Entering Expressions and Instructions .......................................................................................... 11 Setting Modes ................................................................................................................................ 14 Using TI-84 Plus Variable Names ................................................................................................... 19 Storing Variable Values ................................................................................................................. 20 Recalling Variable Values .............................................................................................................. 21 Scrolling Through Previous Entries on the Home Screen ............................................................ 22 ENTRY (Last Entry) Storage Area .................................................................................................. 22 TI-84 Plus Menus ............................................................................................................................ 25 VARS and VARS Y-VARS Menus ..................................................................................................... 27 Equation Operating System (EOSTM) ............................................................................................. 29 Special Features of the TI-84 Plus ................................................................................................. 30 Other TI-84 Plus Features .............................................................................................................. 31 Error Conditions ............................................................................................................................. 33

Chapter 2: Math, Angle, and Test Operations ......................................................................... 35

Getting Started: Coin Flip ............................................................................................................. 35 Keyboard Math Operations .......................................................................................................... 36 MATH Operations .......................................................................................................................... 38 Using the Equation Solver ............................................................................................................. 42 MATH NUM (Number) Operations ................................................................................................ 45 Entering and Using Complex Numbers ........................................................................................ 50 MATH CPX (Complex) Operations ................................................................................................ 54 MATH PRB (Probability) Operations ............................................................................................. 56 ANGLE Operations ......................................................................................................................... 59 TEST (Relational) Operations ........................................................................................................ 62 TEST LOGIC (Boolean) Operations ................................................................................................ 63

Chapter 3: Function Graphing .................................................................................................. 65

Getting Started: Graphing a Circle ............................................................................................... 65 Defining Graphs ............................................................................................................................. 66 Setting the Graph Modes .............................................................................................................. 67 Defining Functions ........................................................................................................................ 68 Selecting and Deselecting Functions ............................................................................................ 69 Setting Graph Styles for Functions ............................................................................................... 71 Setting the Viewing Window Variables ....................................................................................... 73 Setting the Graph Format ............................................................................................................. 74 Displaying Graphs .......................................................................................................................... 76 Exploring Graphs with the Free-Moving Cursor .......................................................................... 78 Exploring Graphs with TRACE ....................................................................................................... 78 Exploring Graphs with the ZOOM Instructions ............................................................................ 80 Using ZOOM MEMORY .................................................................................................................. 85 Using the CALC (Calculate) Operations ........................................................................................ 87

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Chapter 4: Parametric Graphing .............................................................................................. 91

Getting Started: Path of a Ball ...................................................................................................... 91 Defining and Displaying Parametric Graphs ................................................................................ 93 Exploring Parametric Graphs ........................................................................................................ 95

Chapter 5: Polar Graphing ........................................................................................................ 97

Getting Started: Polar Rose ........................................................................................................... 97 Defining and Displaying Polar Graphs ......................................................................................... 98 Exploring Polar Graphs ................................................................................................................ 100

Chapter 6: Sequence Graphing ............................................................................................... 102

Getting Started: Forest and Trees ............................................................................................... 102 Defining and Displaying Sequence Graphs ................................................................................ 103 Selecting Axes Combinations ...................................................................................................... 107 Exploring Sequence Graphs ........................................................................................................ 107 Graphing Web Plots ..................................................................................................................... 109 Using Web Plots to Illustrate Convergence ................................................................................ 110 Graphing Phase Plots ................................................................................................................... 111 Comparing TI-84 Plus and TI-82 Sequence Variables ................................................................. 113 Keystroke Differences Between TI-84 Plus

and TI-82 ................................................................................................................................. 114

Chapter 7: Tables ..................................................................................................................... 115

Getting Started: Roots of a Function .......................................................................................... 115 Setting Up the Table .................................................................................................................... 116 Defining the Dependent Variables ............................................................................................. 117 Displaying the Table .................................................................................................................... 118

Chapter 8: Draw Instructions ................................................................................................. 121

Getting Started: Drawing a Tangent Line .................................................................................. 121 Using the DRAW Menu ............................................................................................................... 122 Clearing Drawings ....................................................................................................................... 123 Drawing Line Segments .............................................................................................................. 124 Drawing Horizontal and Vertical Lines ...................................................................................... 125 Drawing Tangent Lines ................................................................................................................ 126 Drawing Functions and Inverses ................................................................................................. 127 Shading Areas on a Graph .......................................................................................................... 128 Drawing Circles ............................................................................................................................ 128 Placing Text on a Graph .............................................................................................................. 129 Using Pen to Draw on a Graph ................................................................................................... 130 Drawing Points on a Graph ......................................................................................................... 131 Drawing Pixels ............................................................................................................................. 132 Storing Graph Pictures (Pic) ......................................................................................................... 134 Recalling Graph Pictures (Pic) ...................................................................................................... 135 Storing Graph Databases (GDB) .................................................................................................. 135 Recalling Graph Databases (GDB) ............................................................................................... 136

Chapter 9: Split Screen ........................................................................................................... 137

Getting Started: Exploring the Unit Circle ................................................................................. 137 Using Split Screen ........................................................................................................................ 138

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Horiz (Horizontal) Split Screen .................................................................................................... 139 G-T (Graph-Table) Split Screen .................................................................................................... 140 TI-84 Plus Pixels in Horiz and G-T Modes .................................................................................... 141

Chapter 10: Matrices ................................................................................................................. 143

Getting Started: Using the MTRX Shortcut Menu ..................................................................... 143 Getting Started: Systems of Linear Equations ............................................................................ 144 Defining a Matrix ........................................................................................................................ 145 Viewing and Editing Matrix Elements ........................................................................................ 146 Using Matrices with Expressions ................................................................................................. 148 Displaying and Copying Matrices ............................................................................................... 149 Using Math Functions with Matrices .......................................................................................... 151 Using the MATRX MATH Operations .......................................................................................... 154

Chapter 11: Lists ........................................................................................................................ 161

Getting Started: Generating a Sequence ................................................................................... 161 Naming Lists ................................................................................................................................. 162 Storing and Displaying Lists ........................................................................................................ 163 Entering List Names ..................................................................................................................... 164 Attaching Formulas to List Names .............................................................................................. 165 Using Lists in Expressions ............................................................................................................ 167 LIST OPS Menu ............................................................................................................................. 168 LIST MATH Menu ......................................................................................................................... 175

Chapter 12: Statistics ................................................................................................................ 178

Getting Started: Pendulum Lengths and Periods ...................................................................... 178 Setting Up Statistical Analyses .................................................................................................... 184 Using the Stat List Editor ............................................................................................................. 185 Attaching Formulas to List Names .............................................................................................. 188 Detaching Formulas from List Names ......................................................................................... 190 Switching Stat List Editor Contexts ............................................................................................. 190 Stat List Editor Contexts .............................................................................................................. 192 STAT EDIT Menu ........................................................................................................................... 193 Regression Model Features ......................................................................................................... 195 STAT CALC Menu .......................................................................................................................... 198 Statistical Variables ...................................................................................................................... 206 Statistical Analysis in a Program ................................................................................................. 207 Statistical Plotting ........................................................................................................................ 208 Statistical Plotting in a Program ................................................................................................. 212

Chapter 13: Inferential Statistics and Distributions ............................................................... 215

Getting Started: Mean Height of a Population ......................................................................... 215 Inferential Stat Editors ................................................................................................................ 218 STAT TESTS Menu ......................................................................................................................... 221 Inferential Statistics Input Descriptions ...................................................................................... 239 Test and Interval Output Variables ............................................................................................. 240 Distribution Functions ................................................................................................................. 241 Distribution Shading ................................................................................................................... 248

Chapter 14: Applications .......................................................................................................... 251

The Applications Menu ............................................................................................................... 251

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