User Manual
Page 1
Windows is a registered trademark of Apple Computer, Inc. © 1995-1997, 2001 by Texas Instruments Incorporated. Macintosh is a registered trademark of 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 Microsoft Corporation.
Windows is a registered trademark of Apple Computer, Inc. © 1995-1997, 2001 by Texas Instruments Incorporated. Macintosh is a registered trademark of 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 Microsoft Corporation.
User Manual
Page 3
... 1-2 1-3 1-4 1-6 1-8 1-9 1-10 1-12 1-13 1-14 1-16 1-17 1-19 1-20 1-22 Introduction iii Table of Contents This manual describes how to use the TI.80 Graphing Calculator. First Steps 3 TI-80 Menus 4 Entering a Calculation: Compound Interest ........... 5 Continuing a Calculation 6 Defining a Function: Box with Lid 7 Defining a Table of its interactive features. The applications in Chapter 11 show how to use these features...
... 1-2 1-3 1-4 1-6 1-8 1-9 1-10 1-12 1-13 1-14 1-16 1-17 1-19 1-20 1-22 Introduction iii Table of Contents This manual describes how to use the TI.80 Graphing Calculator. First Steps 3 TI-80 Menus 4 Entering a Calculation: Compound Interest ........... 5 Continuing a Calculation 6 Defining a Function: Box with Lid 7 Defining a Table of its interactive features. The applications in Chapter 11 show how to use these features...
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
... the expression entered in the Y= editor used in expressions. An instruction does not return a value to the calculator using ¸. An instruction, which the value of the TI-80, where expressions can be entered and evaluated and instructions can be evaluated to ANS. Instructions are used in an... expression. Menu items are two types of values that can use for important terms that are not valid in graphing. An expression returns...
... the expression entered in the Y= editor used in expressions. An instruction does not return a value to the calculator using ¸. An instruction, which the value of the TI-80, where expressions can be entered and evaluated and instructions can be evaluated to ANS. Instructions are used in an... expression. Menu items are two types of values that can use for important terms that are not valid in graphing. An expression returns...
User Manual
Page 13
... use the TI.80 more quickly by completing both of the TI.80. Contents TI-80 Keyboard 2 First Steps 3 TI-80 Menus 4 Entering a Calculation: Compound Interest ........... 5 Continuing a Calculation 6 Defining a Function: Box with Lid 7 Defining a Table of Values 8 Zooming In on the Table 9 Changing the Viewing Window 11 Displaying and Tracing the Graph 12 Zooming In on the Graph 13 Other TI-80 Features 14...
... use the TI.80 more quickly by completing both of the TI.80. Contents TI-80 Keyboard 2 First Steps 3 TI-80 Menus 4 Entering a Calculation: Compound Interest ........... 5 Continuing a Calculation 6 Defining a Function: Box with Lid 7 Defining a Table of Values 8 Zooming In on the Table 9 Changing the Viewing Window 11 Displaying and Tracing the Graph 12 Zooming In on the Graph 13 Other TI-80 Features 14...
User Manual
Page 14
... keys are grouped by color and physical layout to access the capabilities of the key you need. TI-80 Keyboard The keys on the TI.80 are divided into zones: graphing keys, editing keys, advanced function keys, and scientific calculator keys. These keys are most frequently used for editing expressions and values. These keys are most...
... keys are grouped by color and physical layout to access the capabilities of the key you need. TI-80 Keyboard The keys on the TI.80 are divided into zones: graphing keys, editing keys, advanced function keys, and scientific calculator keys. These keys are most frequently used for editing expressions and values. These keys are most...
User Manual
Page 26
... features in statistical analysis. You can enter fractions directly from the keyboard and perform calculations with fractions. Other TI.80 Features Getting Started has introduced you to basic calculator operation and the table and function graphing features of the TI-80. Fractions Graphing Tables Lists Statistics Programming You can define and save programs that include extensive control and...
... features in statistical analysis. You can enter fractions directly from the keyboard and perform calculations with fractions. Other TI.80 Features Getting Started has introduced you to basic calculator operation and the table and function graphing features of the TI-80. Fractions Graphing Tables Lists Statistics Programming You can define and save programs that include extensive control and...
User Manual
Page 30
The Display The TI.80 displays both text and graphs. Displaying Entries and Answers When text is displayed, the TI-80 screen can show a maximum of eight lines with 16 characters each. ¦ If all of the TI-80 is too long to be evaluated, and see the results on the right side of...the beginning of the next line. Entry Answer The mode settings (pages 1-9 through 1-11) control the way the calculator interprets expressions and displays answers. Home Screen The primary screen of it wraps to scroll the answer so that the list is the Home screen.
The Display The TI.80 displays both text and graphs. Displaying Entries and Answers When text is displayed, the TI-80 screen can show a maximum of eight lines with 16 characters each. ¦ If all of the TI-80 is too long to be evaluated, and see the results on the right side of...the beginning of the next line. Entry Answer The mode settings (pages 1-9 through 1-11) control the way the calculator interprets expressions and displays answers. Home Screen The primary screen of it wraps to scroll the answer so that the list is the Home screen.
User Manual
Page 31
... You have different cursors, which are described in the upper right of the display as a busy indicator. When the TI-80 is calculating or graphing, a vertical line shows in the appropriate chapters. The next keystroke is a 2nd operation. The next keystroke is entered... at the cursor. Operating the TI-80 1-5 The next keystroke is an alphabetic character. Cursor Entry INS (insert) 2nd ALPHA memory "full" Appearance ...
... You have different cursors, which are described in the upper right of the display as a busy indicator. When the TI-80 is calculating or graphing, a vertical line shows in the appropriate chapters. The next keystroke is a 2nd operation. The next keystroke is entered... at the cursor. Operating the TI-80 1-5 The next keystroke is an alphabetic character. Cursor Entry INS (insert) 2nd ALPHA memory "full" Appearance ...
User Manual
Page 33
...the answers to be one argument, which can press ´ to stop the calculation. (There may be a delay.) Operating the TI-80 1-7 While the busy indicator is displayed, indicating that a calculation or a graph is negative, press ·, and then type the exponent, which is indicated... the name. Functions Instructions Interrupting a Calculation Entering a number in this example: LINE(1,1,3,3). An instruction initiates an action. For example, CLRDRAW is determined by a ( at the end of the number that clears any drawn elements from a graph. The display format is an instruction ...
...the answers to be one argument, which can press ´ to stop the calculation. (There may be a delay.) Operating the TI-80 1-7 While the busy indicator is displayed, indicating that a calculation or a graph is negative, press ·, and then type the exponent, which is indicated... the name. Functions Instructions Interrupting a Calculation Entering a number in this example: LINE(1,1,3,3). An instruction initiates an action. For example, CLRDRAW is determined by a ( at the end of the number that clears any drawn elements from a graph. The display format is an instruction ...
User Manual
Page 35
.... Number of fraction display. Unit of graphing. The setting that you want to the cursor location. Setting a Mode from a Program You can set a mode from a program by the Constant Memory feature when the TI.80 is copied to change the mode setting...: 1. Mode settings are described on blinks. 2. Checking MODE Settings Press 3 to display a menu of the mode as an instruction; Type of angle measure. The current settings are displayed and interpreted by the calculator. Setting Modes Modes control how numbers and graphs...
.... Number of fraction display. Unit of graphing. The setting that you want to the cursor location. Setting a Mode from a Program You can set a mode from a program by the Constant Memory feature when the TI.80 is copied to change the mode setting...: 1. Mode settings are described on blinks. 2. Checking MODE Settings Press 3 to display a menu of the mode as an instruction; Type of angle measure. The current settings are displayed and interpreted by the calculator. Setting Modes Modes control how numbers and graphs...
User Manual
Page 36
... normal display format, but the answer cannot be displayed in 10 digits or the absolute value is executed. 1-10 Operating the TI-80 Modes are calculated or displayed, and how graphs appear in two parts. You can be displayed with digits to fixed decimal when the program is less than .001, the... TI-80 displays the answer in any format. The actual value is the way in which we usually express decimal numbers, with one ...
... normal display format, but the answer cannot be displayed in 10 digits or the absolute value is executed. 1-10 Operating the TI-80 Modes are calculated or displayed, and how graphs appear in two parts. You can be displayed with digits to fixed decimal when the program is less than .001, the... TI-80 displays the answer in any format. The actual value is the way in which we usually express decimal numbers, with one ...
User Manual
Page 37
... of the selected functions. CONNECTED draws line segments between the calculated points of T (Chapter 5). SEQUENTIAL graphing evaluates and plots one at a time. SIMUL (simultaneous) graphing evaluates and plots all selected functions for a single value of 1º3 + 4º3 is displayed as 5º3. Operating the TI-80 1-11 for example, the result of the selected functions. DOT...
... of the selected functions. CONNECTED draws line segments between the calculated points of T (Chapter 5). SEQUENTIAL graphing evaluates and plots one at a time. SIMUL (simultaneous) graphing evaluates and plots all selected functions for a single value of 1º3 + 4º3 is displayed as 5º3. Operating the TI-80 1-11 for example, the result of the selected functions. DOT...
User Manual
Page 48
... any errors at and before the cursor location. 3. Calculations stop and an error message with a menu is available; Correct the expression. 1-22 Operating the TI-80 Correcting an Error The top line indicates the general type of a Y= function during program execution, GOTO returns the...select QUIT, or press y . Select GOTO, if that option is displayed immediately. Diagnosing an Error If the TI-80 detects an error, it evaluates an expression, executes an instruction, plots a graph, or stores a value. Note: If a syntax error was detected. Note the type of the error. 2. ...
... any errors at and before the cursor location. 3. Calculations stop and an error message with a menu is available; Correct the expression. 1-22 Operating the TI-80 Correcting an Error The top line indicates the general type of a Y= function during program execution, GOTO returns the...select QUIT, or press y . Select GOTO, if that option is displayed immediately. Diagnosing an Error If the TI-80 detects an error, it evaluates an expression, executes an instruction, plots a graph, or stores a value. Note: If a syntax error was detected. Note the type of the error. 2. ...
User Manual
Page 64
... numbers, expressions, or lists. These functions are often used in programs to control program flow and in graphing to . Less than or equal to control the graph of a function over specific values. valueA=valueB valueAƒvalueB valueA>valueB valueA,valueB valueA Greater than ...cursor location. Relational operators are valid for lists; TEST Menu TEST 1:= 2:ƒ 3:> 4:, 5:< 6: True if: Equal. they return a list calculated on an element-by-element basis. Greater than . Less than . When you select from the menu, the name is false. TEST (Relational) Operations ...
... numbers, expressions, or lists. These functions are often used in programs to control program flow and in graphing to . Less than or equal to control the graph of a function over specific values. valueA=valueB valueAƒvalueB valueA>valueB valueA,valueB valueA Greater than ...cursor location. Relational operators are valid for lists; TEST Menu TEST 1:= 2:ƒ 3:> 4:, 5:< 6: True if: Equal. they return a list calculated on an element-by-element basis. Greater than . Less than . When you select from the menu, the name is false. TEST (Relational) Operations ...
User Manual
Page 81
Note that X may be a list. 2 . Entering the Functions in Expressions You can also evaluate functions without Parentheses You can the calculate the value of a Y= function at a specified value of X. Enter these functions for Y1, Y2, and Y3: X2, X+2, and Y1(Y2(X)). @ a ¸ @ « 2 ¸...2 c 3 d ¸ 2 G 1 c 2 G 2 c 3 d d ¸ 2 G 3 c 2 [ 1 , 2 , 3 2 \ d ¸ Evaluating Functions without using parentheses by storing a value to X. 3 § @ ¸ 2 G 1 ¸ Function Graphing 4-7 Evaluating Y= Functions in the Y= List To display the Y= list, press (.
Note that X may be a list. 2 . Entering the Functions in Expressions You can also evaluate functions without Parentheses You can the calculate the value of a Y= function at a specified value of X. Enter these functions for Y1, Y2, and Y3: X2, X+2, and Y1(Y2(X)). @ a ¸ @ « 2 ¸...2 c 3 d ¸ 2 G 1 c 2 G 2 c 3 d d ¸ 2 G 3 c 2 [ 1 , 2 , 3 2 \ d ¸ Evaluating Functions without using parentheses by storing a value to X. 3 § @ ¸ 2 G 1 ¸ Function Graphing 4-7 Evaluating Y= Functions in the Y= List To display the Y= list, press (.
User Manual
Page 84
... Screen To leave the Window screen: ¦ Select another screen by performing steps 3, 4, and 5. YMIN) 46 @X and @Y are immediately calculated from the Home Screen or a Program To store to @X and @Y (7 and 8 on a graph (graphing accuracy). @X = (XMAX - menu), in which can use a Window variable in an expression by pressing the appropriate key, such as...
... Screen To leave the Window screen: ¦ Select another screen by performing steps 3, 4, and 5. YMIN) 46 @X and @Y are immediately calculated from the Home Screen or a Program To store to @X and @Y (7 and 8 on a graph (graphing accuracy). @X = (XMAX - menu), in which can use a Window variable in an expression by pressing the appropriate key, such as...
User Manual
Page 87
... above or below the viewing window, the cursor disappears as you move the cursor along a Function Press + to the right or left. Function Graphing 4-13 If the graph is , Y=Yn(X). The number of the function appears at the bottom of the display. Press 2 9 and 2 6 to that the cursor.... Press 9 and 6 to move it . Note: The screen does not pan if a STAT PLOT is calculated from the X value; The cursor coordinates are displayed at the middle X value on , the TI-80 attempts to the next. This allows "panning" up and down. After QuickZoom, TRACE is on the first selected...
... above or below the viewing window, the cursor disappears as you move the cursor along a Function Press + to the right or left. Function Graphing 4-13 If the graph is , Y=Yn(X). The number of the function appears at the bottom of the display. Press 2 9 and 2 6 to that the cursor.... Press 9 and 6 to move it . Note: The screen does not pan if a STAT PLOT is calculated from the X value; The cursor coordinates are displayed at the middle X value on , the TI-80 attempts to the next. This allows "panning" up and down. After QuickZoom, TRACE is on the first selected...
User Manual
Page 98
... not affected by zooming unless you leave TRACE and return, unless Smart Graph replots the graph. Exploring a Parametric Graph As in function graphing, three tools are updated as you move the Trace cursor. Parametric graphing uses the additional Window variables TMIN, TMAX, and TSTEP. You can then...same in parametric graphing as in the upper right of the screen, the coordinate values continue to the previous or next equation. Pressing + puts the Trace cursor on a Parametric Graph For each value of T, the calculator displays values for exploring a graph: the freemoving cursor...
... not affected by zooming unless you leave TRACE and return, unless Smart Graph replots the graph. Exploring a Parametric Graph As in function graphing, three tools are updated as you move the Trace cursor. Parametric graphing uses the additional Window variables TMIN, TMAX, and TSTEP. You can then...same in parametric graphing as in the upper right of the screen, the coordinate values continue to the previous or next equation. Pressing + puts the Trace cursor on a Parametric Graph For each value of T, the calculator displays values for exploring a graph: the freemoving cursor...
User Manual
Page 131
Store the regression equation into the Y= list and graph it. 15. Press 5 to select REGEQ, which copies the linear regression to display the VARS menu. 17. Statistics 9-5 Turn off all other functions, if necessary. ... mode, press ( to trace the points in PLOT1, as indicated by P1 in the upper right corner of the display. Press ,. Note: Each time you calculate a regression, the regression equation (REGEQ) is drawn. 20. Press M to clear Y1, if necessary.
Store the regression equation into the Y= list and graph it. 15. Press 5 to select REGEQ, which copies the linear regression to display the VARS menu. 17. Statistics 9-5 Turn off all other functions, if necessary. ... mode, press ( to trace the points in PLOT1, as indicated by P1 in the upper right corner of the display. Press ,. Note: Each time you calculate a regression, the regression equation (REGEQ) is drawn. 20. Press M to clear Y1, if necessary.