User manual HP 48GII GRAPHING CALCULATOR

[. . . ] hp 48gII graphing calculator user's guide H Edition 4 HP part number F2226-90020 Notice REGISTER YOUR PRODUCT AT: www. register. hp. com THIS MANUAL AND ANY EXAMPLES CONTAINED HEREIN ARE PROVIDED "AS IS" AND ARE SUBJECT TO CHANGE WITHOUT NOTICE. HEWLETT-PACKARD COMPANY MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MANUAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE. SHALL NOT BE LIABLE FOR ANY ERRORS OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE FURNISHING, PERFORMANCE, OR USE OF THIS MANUAL OR THE EXAMPLES CONTAINED HEREIN. Copyright 2003 Hewlett-Packard Development Company, L. P. Reproduction, adaptation, or translation of this manual is prohibited without prior written permission of Hewlett-Packard Company, except as allowed under the copyright laws. Hewlett-Packard Company 4995 Murphy Canyon Rd, Suite 301 San Diego, CA 92123 Printing History Edition 4 April 2004 Preface You have in your hands a compact symbolic and numerical computer that will facilitate calculation and mathematical analysis of problems in a variety of disciplines, from elementary mathematics to advanced engineering and science subjects. [. . . ] Press LL@)PICT @CANCL to return to the PLOT WINDOW environment. Change the eye coordinate data to read : XE:3 YE:3 ZE:3 Page 12-38 Press @ERASE @DRAW to see the surface plot. This time the bulk of the plot is located towards the right hand side of the display. Press @CANCL to return to the PLOT WINDOW environment. @, to return to normal calculator display. Try also a Wireframe plot for the surface z = f(x, y) = x2+y2 Press , , , simultaneously if in RPN mode, to access the PLOT SETUP window. Press @ERASE @DRAW to draw the slope field plot. Press @EDIT L@)MENU @LABEL to see the plot unencumbered by the menu and with identifying labels. Press LL@)PICT to leave the EDIT environment. Press @CANCL to return to the PLOT WINDOW environment. @, to return to normal calculator display. Ps-Contour plots Ps-Contour plots are contour plots of three-dimensional surfaces described by z = f(x, y). The contours produced are projections of level surfaces z = constant on the x-y plane. For example, to produce a Ps-Contour plot for the surface z = x2+y2, use the following: Page 12-39 Press , , , simultaneously if in RPN mode, to access to the PLOT SETUP window. Make sure that `X' is selected as the Indep: and `Y' as the Depnd: variables. @ to return to normal calculator display. Press , , , simultaneously if in RPN mode, to access the PLOT WINDOW screen. Keep the default plot window ranges to read: X-Left:-2, X-Right:2, Y-Near:-1 Y-Far: 1, Step Indep: 10, Depnd: 8 Press @ERASE @DRAW to draw the contour plot. This operation will take some time, so, be patient. The result is a contour plot of the surface. Notice that the contour are not necessarily continuous, however, they do provide a good picture of the level surfaces of the function. Press @EDITL @LABEL @MENU to see the graph with labels and ranges. Press LL@)PICT@CANCL to return to the PLOT WINDOW environment. @, to return to normal calculator display. Try also a Ps-Contour plot for the surface z = f(x, y) = sin x cos y. Press , , , simultaneously if in RPN mode, to access the PLOT SETUP window. Press @ERASE @DRAW to draw the slope field plot. Press @EDIT L@)LABEL @MENU to see the plot unencumbered by the menu and with identifying labels. Page 12-40 Press LL@)PICT to leave the EDIT environment. [. . . ] If HP is unable, within a reasonable time, to repair or replace any product to a condition as warranted, you will be entitled to a refund of the purchase price upon prompt return of the product with proof of purchase. HP products may contain remanufactured parts equivalent to new in performance or may have been subject to incidental use. Warranty does not apply to defects resulting from (a) improper or inadequate maintenance or calibration, (b) software, interfacing, parts or supplies not supplied by HP, (c) unauthorized modification or misuse, (d) operation outside of the published environmental specifications for the product, or (e) improper site preparation or maintenance. HP MAKES NO OTHER EXPRESS WARRANTY OR CONDITION WHETHER WRITTEN OR ORAL. [. . . ]