User manual TEXAS INSTRUMENTS TI-80

[. . . ] 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. © 1995­1997, 2001 by Texas Instruments Incorporated. Important Texas Instruments makes no warranty, either expressed 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 the example below, TBLMIN=0, @TBL=1, Y1=X 2+2 and Y2=X 3­2. You can press 9 9 to see the values for Y2. 6-6 Tables Chapter 7: Draw Operations This chapter describes how to use the DRAW operations of the TI. 80. Before using the DRAW operations, you should be familiar with Chapter 4, Function Graphing. Chapter Contents Getting Started: Shading a Graph. . . . . . . . . . . . . . . . . . . . DRAW DRAW Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drawing Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drawing Horizontal and Vertical Lines . . . . . . . . . . . . . . . Drawing a Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Shading Areas on a Graph . . . . . . . . . . . . . . . . . . . . . . . . . . Drawing Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clearing a Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 7-3 7-4 7-5 7-6 7-7 7-10 7-12 Draw Operations 7-1 Getting Started: Shading a Graph Getting Started is a fast-paced introduction. Shade the area below the function Y=XäN2 and above the functions Y=X+1 and Y=-X. 1. Press ( and enter the functions: Y1= @ a | 2 ¸ Y2= @ « 1 ¸ Y3= · @ ¸ (Be sure that Y4 is cleared or turned off. ) 2. Press * 4 to select the ZDECIMAL viewing window, clear any existing drawings, and display the viewing window and graph. 3. Press 2 F 7 to select SHADE_Y<, which is copied to the Home screen. Press 2 ° to add another instruction to this line. Press 2 F 6 to select SHADE_Y>, which is copied to the Home screen. Press 2 G 2 (to select Y2) b 2 G 3 (to select Y3). Press ¸ to see the functions and shading on the graph. 7-2 Draw Operations DRAW DRAW Menu To display the DRAW DRAW menu, press 2 F. What happens when you select an item from this menu depends on whether or not a graph is displayed when you access the menu, as described under each operation. DRAW DRAW Menu DRAW POINTS 1: CLRDRAW 2: LINE( 3: HORIZONTAL 4: VERTICAL 5: DRAWF 6: SHADE_Y> 7: SHADE_Y< 8: SHADE( 9: GRIDON 0: GRIDOFF Clears all drawn elements. Turns the graph grid off. (See page 7-12 for an explanation of CLRDRAW. ) Before Drawing on a Graph Because Draw operations draw on top of the graph of currently selected functions, you may want to do one or more of the following before drawing on a graph: ¦ ¦ ¦ ¦ ¦ ¦ Change the mode settings. [. . . ] TI strongly recommends that you insure the product for value prior to mailing. TI and its licensors do not warrant that the software will be free from errors or meet your specific requirements. All software is provided "AS IS. " Copyright. The software and any documentation supplied with this product are protected by copyright. Service and Warranty Information B-15 Australia & New Zealand Customers only One-Year Limited Warranty for Commercial Electronic Product This Texas Instruments electronic product warranty extends only to the original purchaser and user of the product. [. . . ]