User manual HP 39GS GRAPHING CALCULATOR

[. . . ] HP 39gs graphing calculator user's guide Edition3 Part Number F2223AA-90001 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. © 1994-1995, 1999-2000, 2003, 2006 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 16399 West Bernardo Drive MS 8-600 San Diego, CA 92127-1899 USA Printing History Edition 2 Edition 3 December 2003 June 2005 Contents Preface Manual conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] For a description, see " " on page 11-7. ­1 EEX x The multiplicative inverse function finds the inverse of a square matrix, and the multiplicative inverse of a real or complex number. Also works on a list containing only these object types. Keyboard functions The most frequently used functions are available directly from the keyboard. Many of the keyboard functions also accept complex numbers as arguments. , , , Add, Subtract, Multiply, Divide. Also accepts complex numbers, lists and matrices. value1+ value2, etc. ex Natural exponential. e^value Example e^5 returns 148. 413159103 Natural logarithm. LN(value) Example LN(1) returns 0 Using mathematical functions 13-3 10x Exponential (antilogarithm). 10^value Example 10^3 returns 1000 Common logarithm. LOG(value) Example LOG(100) returns 2 , , Sine, cosine, tangent. Inputs and outputs depend on the current angle format (Degrees, Radians, or Grads). SIN(value) COS(value) TAN(value) Example TAN(45) returns 1 (Degrees mode). ASIN Arc sine: sin­1x. Output range is from ­90° to 90°, ­/2 to /2, or ­100 to 100 grads. Inputs and outputs depend on the current angle format. ASIN(value) Example ASIN(1) returns 90 (Degrees mode). ACOS Arc cosine: cos­1x. Output range is from 0° to 180°, 0 to , or 0 to 200 grads. Inputs and outputs depend on the current angle format. Output will be complex for values outside the normal COS domain of ­ 1 x 1 . ACOS(value) Example ACOS(1) returns 0 (Degrees mode). 13-4 Using mathematical functions ATAN Arc tangent: tan­1x. Output range is from ­90° to 90°, 2/2 to /2, or ­100 to 100 grads. Inputs and outputs depend on the current angle format. ATAN(value) Example ATAN(1) returns 45 (Degrees mode). value2 Example 182 returns 324 Square root. [. . . ] This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · · · · Reorient or relocate the receiving antenna. Increase the separation between the equipment and the receiver. [. . . ]