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The HP 48 complies with the limits for a Class В computing device as specified in Part 15 of FCC Rules, which provide reasonable protection against such interference in a residential installation. In the unlikely event that there is interference to radio or television reception (which can be determined by turning the unit off and on), try the following: ■ Reorienting or relocating the receiving antenna. ■ Relocating the HP 48 with respect to the receiver. For more information, consult your dealer, an experienced radio/television technician, or the following booklet, prepared by the Federal Communications Commission: How to Identify and Resolve Radio-TV Interference Problems. This booklet is available from the U.S. Government Printing Office, Washington, D.C. 20402, Stock Number 004-000-00345-4. At the first printing of this manual, the telephone number was (202) 783-3238. Europe Declaration of Conformity (according to ISO/IEC Guide 22 and EN 45014) Manufacturer’s Manufacturer’s name: Hewlett-Packard Co. address: Corvallis Division 1000 NE Circle Blvd. Corvallis, OR 97330 Product name: EMC: Hewlett-Packard Co. Singapore (PTE) Ltd. 72 Bendemeer Rd. 01/01-07/07 Singapore 1233 Safety: declares that the following products: HP 48G Series calculators conform, to the following product specifications: CISPR. 22:1985 / EN 55022 (1988): Class B, IEC 801-2:1991 / prEN 55024-2 (1992): 3 kV CD, 8 kV AD, IEC 801-3:1984 / prEN 55024-3 (1991): 3 V/m IEC 950 (1986)+A1,A2/EN 60950 (1988)+A1,A2 Quality Department Hewlett-Packard Company Corvallis Division т HEWLETT PACKARD HP Part No. 00048-90126 Printed in Singapore Edition 5 Notice 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 and fitness for a particular purpose. Hewlett-Packard Co. 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 herein. © Hewlett-Packard Co. 1993. All rights reserved. The programs that control your HP 48 are copyrighted and all rights are reserved. Reproduction, adaptation, or translation of those programs without prior written permission of Hewlett-Packard Co. is also prohibited. © Trustees of Columbia University in the City of New York, 1989. Permission is granted to any individual or institution to use, copy, or redistribute Kermit software so long as it is not sold for profit, provided this copyright notice is retained. Hewlett-Packard Company Corvallis Division 1000 N.E. Circle Blvd. Corvallis, OR 97330, U.S.A. Acknowledgements Hewlett-Packard gratefully acknowledges the members of the Education Advisory Committee (Dr. Thomas Dick, Dr. Lynn Gamer, Dr. John Kenelly, Dr. Don LaTorre, Dr. Jerold Mathews, and Dr. Gil Proctor) for their assistance in the development of this product. Special thanks are also due to Donald R. Asmus, Scott Burke, Blmshan Gupta and his students at the Oregon Institute of Technology, and Carla Randall and her AP Calculus students. Edition History Edition 1 Edition 2 Edition 3 Edition 4 Edition 5 October 1993 January 1994 .. April 1993 .. June 1993 August 1993 Contents 1. Start Here About the Quick Start Guide........................1-2 Lesson 1: Getting Ready............................1-3 Turning the HP 48 On and Off'....................1-3 Adjusting the Display Contrast......................1-3 Preparing the Built-In Examples..................1-3 Setting the Time and Date........................1-4 Setting the Beeper, Clock, and Fraction Mark . . . 1-4 2. Introducing the HP 48 Lesson 2: Mathematical Objects and the HP 48 ... 2-2 Editing an Object in the Command Line............2-5 Removing Objects from the Stack..................2-6 Lesson 3: Entering Characters......................2-7 The (cT) Keyboard..................................2-7 Special Characters ..............................2-8 Lesson 4: Using Menus ............................2-9 The fiMXT) Key..................................2-9 Lesson 5: A Brief Tour of the HP 48 ................2-10 Entry Environments..............................2-10 Application Environments........................2-12 Utility Environments............................2-14 3. Arithmetic Lesson 6: Doing Arithmetic ........................3-2 Stack Method ..................................3-2 Algebraic method................................3-4 Using the Equation Writer........................3-5 Lesson 7: Finding and Using More Math Functions . . 3-7 Lesson 8: Arithmetic with Fractions..................3-8 Lesson 9: Arithmetic with Symbols..................3-9 Lesson 10: Arithmetic with Complex Numbers .... 3-10 Contents-1 Lesson 11: Arithmetic including Units Converting Units 4. Understanding...