User Manual
Page 1
Windows is a registered trademark of Microsoft Corporation. Macintosh is a registered trademark of Apple Computer, Inc. © 1995-1997, 2001 by Texas Instruments Incorporated. TI-80 GRAPHING CALCULATOR GUIDEBOOK TI-GRAPH LINK, Calculator-Based Laboratory, CBL, CBL 2, Calculator-Based Ranger, CBR, Constant Memory, Automatic Power Down, APD, and EOS are trademarks of Texas Instruments Incorporated.
Windows is a registered trademark of Microsoft Corporation. Macintosh is a registered trademark of Apple Computer, Inc. © 1995-1997, 2001 by Texas Instruments Incorporated. TI-80 GRAPHING CALCULATOR GUIDEBOOK TI-GRAPH LINK, Calculator-Based Laboratory, CBL, CBL 2, Calculator-Based Ranger, CBR, Constant Memory, Automatic Power Down, APD, and EOS are trademarks of Texas Instruments Incorporated.
User Manual
Page 3
... features together. Other chapters describe its features. Getting Started gives a quick overview of its interactive features. Using this Guidebook Effectively viii Glossary xii Getting Started: TI-80 Keyboard 2 Do This First! Table of Contents This manual describes how to use the TI.80 Graphing Calculator.
... features together. Other chapters describe its features. Getting Started gives a quick overview of its interactive features. Using this Guidebook Effectively viii Glossary xii Getting Started: TI-80 Keyboard 2 Do This First! Table of Contents This manual describes how to use the TI.80 Graphing Calculator.
User Manual
Page 4
... TI-80 Functions Keyboard Math Operations MATH MATH Operations MATH NUM (Number) Operations MATH PRB (Probability) Operations ANGLE Operations TEST (Relational) Operations 2-2 2-3 2-4 2-7 2-10 2-12 2-14 2-16 Chapter 3: Fractions Getting Started: Working with Fractions 3-2 Setting Modes for Fraction Results 3-4 Entering and Using Fractions in Calculations ......... 3-6 The FRACTION Menu 3-8 Chapter 4: Function Graphing Chapter 5: Parametric Graphing Getting Started: Graphing...
... TI-80 Functions Keyboard Math Operations MATH MATH Operations MATH NUM (Number) Operations MATH PRB (Probability) Operations ANGLE Operations TEST (Relational) Operations 2-2 2-3 2-4 2-7 2-10 2-12 2-14 2-16 Chapter 3: Fractions Getting Started: Working with Fractions 3-2 Setting Modes for Fraction Results 3-4 Entering and Using Fractions in Calculations ......... 3-6 The FRACTION Menu 3-8 Chapter 4: Function Graphing Chapter 5: Parametric Graphing Getting Started: Graphing...
User Manual
Page 11
...used throughout this guidebook. An expression is an input upon which may have arguments, returns a value and can be evaluated to the calculator using ¸. Menu items are not valid in expressions. There are two types of a function depends. Glossary This glossary provides ... List Menu Items An argument is a complete sequence of values that can use for important terms that are used in graphing. A function, which the value of TI-80 commands: instructions and expressions. An instruction does not return a value to ANS. A list is any entry submitted to...
...used throughout this guidebook. An expression is an input upon which may have arguments, returns a value and can be evaluated to the calculator using ¸. Menu items are not valid in expressions. There are two types of a function depends. Glossary This glossary provides ... List Menu Items An argument is a complete sequence of values that can use for important terms that are used in graphing. A function, which the value of TI-80 commands: instructions and expressions. An instruction does not return a value to ANS. A list is any entry submitted to...
User Manual
Page 13
... a Calculation 6 Defining a Function: Box with Lid 7 Defining a Table of the TI.80. Getting Started contains two keystroke-by completing both of these examples first. You will learn to use the TI.80 more quickly by -keystroke examplesan interest rate problem and a volume problemwhich introduce you to some principal operating and graphing features...
... a Calculation 6 Defining a Function: Box with Lid 7 Defining a Table of the TI.80. Getting Started contains two keystroke-by completing both of these examples first. You will learn to use the TI.80 more quickly by -keystroke examplesan interest rate problem and a volume problemwhich introduce you to some principal operating and graphing features...
User Manual
Page 14
... and physical layout to allow easy location of the TI-80. The keys are most frequently used to access the interactive graphing features of the key you need. The Zones of the Keyboard Graphing & Editing & Advanced Functions & Scientific & Calculator Graphing Keys Editing Keys Advanced Function Keys Scientific Calculator Keys These keys are most frequently used to access...
... and physical layout to allow easy location of the TI-80. The keys are most frequently used to access the interactive graphing features of the key you need. The Zones of the Keyboard Graphing & Editing & Advanced Functions & Scientific & Calculator Graphing Keys Editing Keys Advanced Function Keys Scientific Calculator Keys These keys are most frequently used to access...
User Manual
Page 26
...to analyze multiple functions simultaneously (Chapter 6). You also can enter and save up to basic calculator operation and the table and function graphing features of the TI-80. You can simplify fractions step-by-step. You can enter fractions directly from the keyboard ...and perform calculations with fractions. Other TI.80 Features Getting Started has introduced you to three parametric functions (Chapter 5). Fractions Graphing Tables Lists Statistics Programming You can store, graph, and analyze up to four functions (Chapter 4) ...
...to analyze multiple functions simultaneously (Chapter 6). You also can enter and save up to basic calculator operation and the table and function graphing features of the TI-80. You can simplify fractions step-by-step. You can enter fractions directly from the keyboard ...and perform calculations with fractions. Other TI.80 Features Getting Started has introduced you to three parametric functions (Chapter 5). Fractions Graphing Tables Lists Statistics Programming You can store, graph, and analyze up to four functions (Chapter 4) ...
User Manual
Page 30
...; Entry Answer The mode settings (pages 1-9 through 1-11) control the way the calculator interprets expressions and displays answers. Displaying Entries and Answers When text is too long to be evaluated, ...You enter instructions to be executed, expressions to scroll the answer so that the list is displayed, the TI-80 screen can press 9 and 6 to be displayed in its entirety, you can view all lines of... or the program editor (Chapter 10) is the Home screen. Graphs are filled, text "scrolls" off the top of the TI-80 is longer than one line, it . The Display The...
...; Entry Answer The mode settings (pages 1-9 through 1-11) control the way the calculator interprets expressions and displays answers. Displaying Entries and Answers When text is too long to be evaluated, ...You enter instructions to be executed, expressions to scroll the answer so that the list is displayed, the TI-80 screen can press 9 and 6 to be displayed in its entirety, you can view all lines of... or the program editor (Chapter 10) is the Home screen. Graphs are filled, text "scrolls" off the top of the TI-80 is longer than one line, it . The Display The...
User Manual
Page 31
... have different cursors, which are described in the upper right of the display as a busy indicator. Busy Indicator Graphs and the screens for viewing and editing tables and lists have entered the maximum number of the cursor indicates what ...the next key. During a pause in a name, or memory is a dotted line. The next keystroke is calculating or graphing, a vertical line shows in the appropriate chapters. When the TI-80 is a 2nd operation. Operating the TI-80 1-5 Cursor Entry INS (insert) 2nd ALPHA memory "full" Appearance Blinking 0 Blinking _ Blinking Blinking ...
... have different cursors, which are described in the upper right of the display as a busy indicator. Busy Indicator Graphs and the screens for viewing and editing tables and lists have entered the maximum number of the cursor indicates what ...the next key. During a pause in a name, or memory is a dotted line. The next keystroke is calculating or graphing, a vertical line shows in the appropriate chapters. When the TI-80 is a 2nd operation. Operating the TI-80 1-5 Cursor Entry INS (insert) 2nd ALPHA memory "full" Appearance Blinking 0 Blinking _ Blinking Blinking ...
User Manual
Page 33
... that precedes the exponent. For example, CLRDRAW is displayed. 3. A function returns a value. Instructions cannot be a delay.) Operating the TI-80 1-7 Type the part of the name. Press 2 ^. í is an instruction that a calculation or a graph is indicated by the mode settings (pages 1-9 through 1-11) and the size of the name. While the busy indicator...
... that precedes the exponent. For example, CLRDRAW is displayed. 3. A function returns a value. Instructions cannot be a delay.) Operating the TI-80 1-7 Type the part of the name. Press 2 ^. í is an instruction that a calculation or a graph is indicated by the mode settings (pages 1-9 through 1-11) and the size of the name. While the busy indicator...
User Manual
Page 35
...setting that you want . 3. Press 9 or 6 to move the cursor to change the mode setting: 1. Operating the TI-80 1-9 Checking MODE Settings Press 3 to connect graph points. Press ¸. The name is copied to plot simultaneously. for example, FUNC or FLOAT. Whether to the cursor...line of the mode as an instruction; Mode settings are displayed and interpreted by the calculator. Setting Modes Modes control how numbers and graphs are retained by the Constant Memory feature when the TI.80 is turned off. Setting a Mode from a Program You can set a mode ...
...setting that you want . 3. Press 9 or 6 to move the cursor to change the mode setting: 1. Operating the TI-80 1-9 Checking MODE Settings Press 3 to connect graph points. Press ¸. The name is copied to plot simultaneously. for example, FUNC or FLOAT. Whether to the cursor...line of the mode as an instruction; Mode settings are displayed and interpreted by the calculator. Setting Modes Modes control how numbers and graphs are retained by the Constant Memory feature when the TI.80 is turned off. Setting a Mode from a Program You can set a mode ...
User Manual
Page 36
They control how numeric entries are interpreted, how answers are set on the Home screen. Modes are calculated or displayed, and how graphs appear in scientific notation. NORMAL SCI FLOAT Fixed Decimal Notation formats affect only how an answer is displayed on the MODE screen (page ...format. The fixed decimal setting lets you selected. The decimal settings apply to fixed decimal when the program is less than .001, the TI-80 displays the answer in the display. Enter n as in calculations. You can enter a number in 12345.67. TI-80 Modes The TI.80 has eight mode settings.
They control how numeric entries are interpreted, how answers are set on the Home screen. Modes are calculated or displayed, and how graphs appear in scientific notation. NORMAL SCI FLOAT Fixed Decimal Notation formats affect only how an answer is displayed on the MODE screen (page ...format. The fixed decimal setting lets you selected. The decimal settings apply to fixed decimal when the program is less than .001, the TI-80 displays the answer in the display. Enter n as in calculations. You can enter a number in 12345.67. TI-80 Modes The TI.80 has eight mode settings.
User Manual
Page 37
... before displaying them; MANSIMP displays fraction results without automatic simplification; SEQUENTIAL graphing evaluates and plots one at a time. Operating the TI-80 1-11 RADIAN DEGREE aÀbºc bºc AUTOSIMP MANSIMP FUNC PARAM CONNECTED DOT SEQUENTIAL SIMUL The angle mode controls: ¦ How the calculator interprets angle arguments in terms of the selected functions. aÀ...
... before displaying them; MANSIMP displays fraction results without automatic simplification; SEQUENTIAL graphing evaluates and plots one at a time. Operating the TI-80 1-11 RADIAN DEGREE aÀbºc bºc AUTOSIMP MANSIMP FUNC PARAM CONNECTED DOT SEQUENTIAL SIMUL The angle mode controls: ¦ How the calculator interprets angle arguments in terms of the selected functions. aÀ...
User Manual
Page 48
...displayed at and before the cursor location. 3. Diagnosing an Error If the TI-80 detects an error, it evaluates an expression, executes an instruction, plots a graph, or stores a value. Correct the expression. 1-22 Operating the TI-80 Note: If a syntax error was detected. Select GOTO, if that option...Appendix B. ¦ If you return to the program. ¦ If you select QUIT, or press y . To correct an error: 1. Calculations stop and an error message with a menu is available; If the error in Appendix B. For additional information about the error message. 4. Error Conditions...
...displayed at and before the cursor location. 3. Diagnosing an Error If the TI-80 detects an error, it evaluates an expression, executes an instruction, plots a graph, or stores a value. Correct the expression. 1-22 Operating the TI-80 Note: If a syntax error was detected. Select GOTO, if that option...Appendix B. ¦ If you return to the program. ¦ If you select QUIT, or press y . To correct an error: 1. Calculations stop and an error message with a menu is available; If the error in Appendix B. For additional information about the error message. 4. Error Conditions...
User Manual
Page 64
...129; True if: Equal. Greater than . When you select from the menu, the name is false. Less than or equal to control the graph of a function over specific values. Relational operators are valid for lists; valueA=valueB valueAƒvalueB valueA>valueB valueA,valueB valueA These functions are ...often used in programs to control program flow and in graphing to . Greater than or equal to the cursor location. they return a list calculated on an element-by-element basis. valueA and valueB can be numbers, expressions, or lists...
...129; True if: Equal. Greater than . When you select from the menu, the name is false. Less than or equal to control the graph of a function over specific values. Relational operators are valid for lists; valueA=valueB valueAƒvalueB valueA>valueB valueA,valueB valueA These functions are ...often used in programs to control program flow and in graphing to . Greater than or equal to the cursor location. they return a list calculated on an element-by-element basis. valueA and valueB can be numbers, expressions, or lists...
User Manual
Page 87
... function is undefined at the bottom of the variables X and Y. However, the coordinate values at an X value, the Y value is , Y=Yn(X). Function Graphing 4-13 The cursor is still active. Tracing updates and displays the values of the screen indicate the cursor coordinates. Panning to the right or left... plotted points at the upper right of the screen. Note: If any STAT PLOTS are displayed at the middle X value on , the TI-80 attempts to the next. Note: The screen does not pan if a STAT PLOT is calculated from one plotted point to trace the first stat plot.
... function is undefined at the bottom of the variables X and Y. However, the coordinate values at an X value, the Y value is , Y=Yn(X). Function Graphing 4-13 The cursor is still active. Tracing updates and displays the values of the screen indicate the cursor coordinates. Panning to the right or left... plotted points at the upper right of the screen. Note: If any STAT PLOTS are displayed at the middle X value on , the TI-80 attempts to the next. Note: The screen does not pan if a STAT PLOT is calculated from one plotted point to trace the first stat plot.
User Manual
Page 218
...Graphing Accuracy Values in the Window variables using up to 13 digits. Ymin is the center of the next to the bottom pixel, YMAX is the center of the top pixel. @Y is the distance between the centers of two adjacent pixels. ¦ @Y is calculated... as (YMAX.YMIN)à46. ¦ If @Y is entered from the Home screen or a program, then XMAX is calculated as XMIN...the center of two adjacent pixels. ¦ @X is calculated as (XMAX-XMIN)à62. ¦ If @X is... the displayed value is calculated as six characters, which may include a negative sign, decimal point, ...
...Graphing Accuracy Values in the Window variables using up to 13 digits. Ymin is the center of the next to the bottom pixel, YMAX is the center of the top pixel. @Y is the distance between the centers of two adjacent pixels. ¦ @Y is calculated... as (YMAX.YMIN)à46. ¦ If @Y is entered from the Home screen or a program, then XMAX is calculated as XMIN...the center of two adjacent pixels. ¦ @X is calculated as (XMAX-XMIN)à62. ¦ If @X is... the displayed value is calculated as six characters, which may include a negative sign, decimal point, ...
User Manual
Page 220
...-board pattern, memory is in the battery compartment is full. If the dotted-line busy indicator is displayed, a graph or program is paused, and the TI-80 is waiting for additional information about specific errors beginning on the display, perhaps the display contrast needs adjusting. Handling a...page B-11, if necessary. 4. Refer to correct the problem. B-10 Service and Warranty Information If after adjusting the display contrast, the calculator does not appear to break. and delete some items from memory. Press and release the 2 key. In Case of Difficulty If you have...
...-board pattern, memory is in the battery compartment is full. If the dotted-line busy indicator is displayed, a graph or program is paused, and the TI-80 is waiting for additional information about specific errors beginning on the display, perhaps the display contrast needs adjusting. Handling a...page B-11, if necessary. 4. Refer to correct the problem. B-10 Service and Warranty Information If after adjusting the display contrast, the calculator does not appear to break. and delete some items from memory. Press and release the 2 key. In Case of Difficulty If you have...
User Manual
Page 222
... 5 levels. You must be integers between 1 and 99; This error occurs when any nested combination of the calculator. The TI-80 allows for example, L1(100) will cause an error. This error does not occur during graphing. The TI-80 allows for the operation. ¦ List element dimensions must delete item(s) from memory (Chapter 12) before...
... 5 levels. You must be integers between 1 and 99; This error occurs when any nested combination of the calculator. The TI-80 allows for example, L1(100) will cause an error. This error does not occur during graphing. The TI-80 allows for the operation. ¦ List element dimensions must delete item(s) from memory (Chapter 12) before...