Texas Instruments TI-73 Explorer Manual

$Titlepg.doc TI-73: Title Page/Important Notice, English Bob Fedorisko Revised: 06/10/03 8:45 AM Printed:

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In this guidebook, TI-73 refers to both the TI-73 and

TI-73 Explorer. All functions, instructions, and examples in

this guidebook work identically for both the TI-73 and the

TI-73 Explorer.

Macintosh is a registered trademark of Apple Computer, Inc.

$Titlepg.doc TI-73: Title Page/Important Notice, English Bob Fedorisko Revised: 06/10/03 8:45 AM Printed:

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$Titlepg.doc TI-73: Title Page/Important Notice, English Bob Fedorisko Revised: 06/10/03 8:45 AM Printed:

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Important Information

Texas Instruments makes no warrant , either express or implied,

including but not limited to an implied warranties of merchantabilit

and fitness for a particular purpose, regarding an programs or book

materials and makes such materials available solel on an “as-is” basis.

In no event shall Texas Instruments be liable to an one 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 liabilit of Texas Instruments, regardless of the form of action,

shall not exceed the purchase price of this calculator. Moreover, Texas

Instruments shall not be liable for an claim of an kind whatsoever

against the use of these materials b an other part .

US FCC Information Concerning Radio Frequency

Interference

This equipment has been tested and found to compl with the limits for a

Class B digital device, pursuant to Part 15 of the FCC rules. These limits

are designed to provide reasonable protection against harmful

interference in a residential installation. This equipment generates, uses,

and can radiate radio frequenc energ and, if not installed and used in

accordance with the instructions, ma cause harmful interference with

radio communications. However, there is no guarantee that interference

will not occur in a particular installation.

If this equipment does cause harmful interference to radio or television

reception, which can be determined b turning the equipment off and on,

ou can tr to correct the interference b one or more of the following

measures:

¦ Reorient or relocate the receiving antenna.

¦ Increase the separation between the equipment and receiver.

¦ Connect the equipment into an outlet on a circuit different from that

to which the receiver is connected.

Consult the dealer or an experienced radio/television technician for help.

Caution: An changes or modifications to this equipment not expressl

approved b Texas Instruments ma void our authorit to operate the

equipment.

This digital apparatus does not exceed the Class B limits for radio noise

emissions from digital apparatus set out in the Radio Interference

Regulations of the Canadian Department of Communications.

7300ENG.DOC TI-73: Table of Contents, English Julie Hewlett Revised: 05/04/98 4:48 PM Printed: 05/19/99 8:58

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Table of ContentsTable of Contents

Chapter 1: Operating the TIN73 1

Preparing to Use Your TIN73.........................................3

The Home Screen...........................................................5

Entering Numbers and Other Characters .....................6

Functions and Instructions ..........................................12

Entering Expressions....................................................15

Retrieving Previous Entries -£......................17

Recalling and Storing the Last Answer -¢......18

Mode Settings..............................................................22

Chapter 2: Math Operations 25

Keyboard Math Operations ........................................27

The 1MATH Menu ................................................34

The 1NUM Menu ..................................................44

The 1PRB Menu ....................................................49

The 1LOG Menu.................................................... 54

Chapter 3: Fractions 57

Entering Fractions........................................................58

Using Fractions in Calculations ...................................59

Fraction Modes ............................................................60

Converting between Fractions and Decimals............. 64

Converting between Mixed Numbers and

Simple Fractions......................................................65

Chapter 4: Measurement Conversions and

Constant Calculations 67

The -‚CONVERSIONS Menu.......................68

Constants......................................................................71

Chapter 5: Lists 77

Steps for Creating a List ..............................................78

The List Editor 3....................................................79

Naming a List ...............................................................79

Entering List Elements .................................................81

Editing Lists in the List Editor...................................... 87

The -vLs Menu .................................................91

The -vOPS Menu ..............................................92

List Commands from the Home Screen ....................102

iv TIN73 Table of Contents

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Chapter 6: Statistical Plots 107

Steps for Defining a Stat Plot ................................... 108

Defining Statistical Data in Lists ............................... 109

Deselecting YnFunctions .......................................... 109

Defining a Stat Plot ................................................... 109

Selecting Stat Plot Types ........................................... 111

Defining Stat Plot Options........................................ 112

Adjusting Window Values and Format .................... 114

Displaying the Stat Plot............................................. 114

Stat Plot Examples ..................................................... 114

Chapter 7: Statistical Analyses 127

The -vMATH Menu........................................ 128

The -vCALC Menu.......................................... 133

Chapter 8: Tables 149

What Is a Table? ........................................................ 150

Steps for Creating a Table ........................................ 151

Defining and Selecting Functions in the

Y= Editor &........................................................ 152

Setting Up the Table -f............................ 153

Displaying the Table -i............................... 154

Table Setup from the Home Screen ......................... 161

Chapter 9: Function Graphing 163

Steps for Graphing a Function.................................. 164

Example of Function Graphing................................. 165

Defining Functions in the Y= Editor &................. 167

Selecting a Graph Style ............................................. 169

Setting the Window Format -g................ 171

Defining Window Values .......................................... 173

Displaying a Graph *....................................... 177

Adjusting Window Values with

the (ZOOM Menu ........................................ 181

The (MEMORY Menu........................................ 185

Chapter 10: Drawing 187

The 2DRAW Menu ............................................. 188

The 2POINTS Menu............................................ 201

The 2STO Menu ................................................. 206

TIN73 Table of Contents v

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Chapter 11: Trigonometry 209

The -uTRIG Menu ........................................... 210

Graphing Trig Functions............................................214

The -uANGLE Menu .......................................215

Chapter 12: Programming 221

What Is a Program? ...................................................223

Steps for Creating a Program.................................... 223

Creating and Naming a New Program ..................... 224

Entering Program Commands...................................226

The 8CTL Menu .................................................. 227

The 8I/O Menu....................................................241

Editing Program Commands ..................................... 248

Executing a Program .................................................251

Debugging a Program...............................................252

Chapter 13: Communication Link and the

CBLàCBR Application 253

TIN73 Link Capabilities...............................................254

The Link SEND Menu 91 ...................................255

The Link RECEIVE Menu 91 "..........................257

Transmitting Data Items............................................258

Backing Up Memory .................................................. 261

Upgrading your TIN73 Graph Explorer Software.....262

The APPLICATIONS Menu 9...............................263

Steps for Running the CBLàCBR Application ..........264

Selecting the CBL/CBR Application ...........................265

Specifying the Data Collection Method ................... 265

Specifiying Data Collection Options......................... 266

Collecting the Data....................................................273

Stopping Data Collection ..........................................274

Chapter 14: Memory Management 275

The -ŸMEMORY Menu...................................276

Appendix A: Function and Instruction Reference 283

vi TI-73 Table of Contents

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Appendix B: Reference Information 319

The TIN73 Menu Map ................................................ 320

The VARS Menu -}....................................... 329

Equation Operating System (EOS é)........................ 330

In Case of Difficulty ................................................... 330

Correcting an Error.................................................... 331

Error Messages........................................................... 332

Appendix C: BatteryàService and

Warranty Information 339

Battery Information .................................................. 340

Texas Instruments (TI) Support and Service ............. 342

Warranty Information............................................... 343

Index 345

7301ENG.DOC CH1 Operating the TI-73, English Julie Hewlett Revised: 07/29/98 11:55 AM Printed: 05/19/99

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Operating theOperating the

TITIN

7373

Preparing to Use Your TIN73................................................. 3

Installing the AAA Batteries...........................................3

Turning the TIN73 On and Off ....................................... 3

Adjusting the Display Contrast ......................................4

Resetting Memory and All Defaults...............................4

The Home Screen................................................................... 5

Entering Numbers and Other Characters.............................6

Entering a Negative Number a...................................6

Entering a Number in Scientific Notation -{.......7

Entering Secondary Functions -...............................7

Entering Text -t.................................................7

Common Display Cursors ..............................................10

Editing Numbers and Characters .................................11

Functions and Instructions .................................................. 12

Accessing Functions and Instructions from Menus .....12

Accessing FunctionsàInstructions from the CATALOG... 14

Entering Expressions............................................................15

Grouping Parts of Expressions with Parentheses ........16

Using Implied Multiplication in Expressions................16

Entering Multiple Expressions on One Line ................16

Retrieving Previous Entries -£..............................17

Recalling and Storing the Last Answer -¢..............18

Continuing a Calculation with Ans ..............................18

Using Ans as a Variable in an Expression ....................19

Storing Values to a Variable X.............................20

Recalling Variable Values -P.............................21

2Chapter 1: Operating the TIN73

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Mode Settings ..................................................................... 22

Numeric Notation Mode .............................................. 23

Decimal Notation Mode ............................................... 24

Angle Mode .................................................................. 24

Display Format Mode ................................................... 24

Simplification Mode ..................................................... 24

Chapter 1: Operating the TIN73 3

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Preparing to Use Your

TIN

Before using your TIN73, you must install the batteries, turn on

the calculator, and adjust the contrast. You may reset (clear)

the calculator memory and defaults, if desired.

Installing the AAA BatteriesInstalling the AAA Batteries

Install four AAA batteries in the battery compartment on the

back of the calculator. Arrange the batteries according to the

polarity (+ and -) diagram in the battery compartment. For

more information about installing batteries, see Appendix C:

BatteryàService and Warranty Information.

Turning theTurning the

TITIN

7373

On and OffOn and Off

To turn on the TIN73, press ^.

To turn off the TIN73 manually,

press the yellow -key and

then press ^(indicated in this

book as -).

When you press -, all settings and memory contents are

retained by Constant Memoryè. Any error condition is

cleared. To prolong battery life, the APDè(Automatic Power

Down) feature turns the TIN73 off automatically after a few

minutes without any activity.

When you turn on the calculator:

• The Home screen is displayed if you previously turned off

the calculator by pressing -. It appears as it did

when you last used it; all errors are cleared.

 or 

• The calculator displays the last screen (including the

display, cursor, and any errors) that was displayed before

Automatic Power Down turned off the calculator.

4Chapter 1: Operating the TIN73

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Adjusting the Display ContrastAdjusting the Display Contrast

The brightness and contrast of the display can depend on

room lighting, battery freshness, and viewing angle.

To adjust the contrast:

1. Press and release the yellow -key.

2. Press and hold $(to darken the screen) or #(to lighten

the screen).

As you change the contrast setting, a number from 0 (lightest)

to 9 (darkest) in the top-right corner indicates the current

setting. You may not be able to see the number if the contrast

is too light or too dark.

Resetting Memory and All DefaultsResetting Memory and All Defaults

Follow these steps to reset the TIN73 to its factory settings

and clear all memory:

1. Turn on the calculator.

2. Display the MEMORY menu.

-Ÿ (above _)

3. Display the RESET menu.

4. Display the RESET RAM

menu.

The ^key

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