2000 Gregory Leblanc Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. You may obtain a copy of the GNU Free Documentation License from the Free Software Foundation by visiting their Web site or by writing to: Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Many of the names used by companies to distinguish their products and services are claimed as trademarks. Where those names appear in any GNOME documentation, and those trademarks are made aware to the members of the GNOME Documentation Project, the names have been printed in caps or initial caps. This is version .1 of the gcalc manual. gcalc is a double precision calculator application. It provides advanced scientific and mathematical features such as trigonometric functions (sine, cosine, tangent) and logarithms (log, ln). To run gcalc, select gcalc from the SUBMENU submenu of the Main Menu, or type gcalc on the command line. gcalc is included in the gnome-utils package, which is part of the GNOME desktop environment. This document describes version &version; of gcalc. gcalc can be used to perform any of the calculations that you would normally use a scientific caculator or slide-rule for, or to replace the trignometric and logarithmetic tables generally found in the appendix of science textbooks. Starting gcalc opens the Main window, shown in .

gcalc Main Window

To perform calculations, type in the numbers using the number keys on your keyboard, or use the 0 through 9 buttons on the main window, and the operator buttons surrounding them. The menu bar, located at the top of the Main Window, contains the following menus: File This menu contains: Ctl-Q Quit which is self-explanatory. Edit This menu contains: Ctl-C Edit which copies the current display. Help About — shows basic information about gcalc, such as the author's name and the application version number. The buttons, located on the Main Window, are as follows: 1/x Inverts the current display. When 10 is displayed, pressing 1/x will cause gcalc to display 0.1. x^2 Raises the current display to the second power. When 5 is displayed, pressing x^2 will cause gcalc to display 25. SQRT Calculates the square root. When 81 is displayed, pressing SQRT will cause gcalc to display 9. CE/C This button clears the display. AC This button clears the display and all queued commands. INV This button crashes gcalc. Currently, I'm not sure what it should do. sin Computes the trigonometric sine. The units used are displayed on the second button down on the right column of buttons. When the display shows 90 and the units display shows DEG pressing sin will cause gcalc to display 1. cos Computes the trigonometric cosine, or compliments sine. The units used are displayed on the second button down on the right column of buttons. When the display shows 60 and the units display shows DEG, pressing the cos will cause gcalc to display .5. This application has no known bugs. MY-GNOME-APP was written by GNOME-HACKER (hacker@gnome.org). To find more information about MY-GNOME-APP, please visit the MY-GNOME-APP Web page. Please send all comments, suggestions, and bug reports to the GNOME bug tracking database. (Instructions for submitting bug reports can be found on-line.) If you are using GNOME 1.1 or later, you can also use Bug Report Tool (bug-buddy), available in the Utilities submenu of Main Menu, for submitting bug reports. This manual was written by ME (MYNAME@MYADDRESS). Please send all comments and suggestions regarding this manual to the GNOME Documentation Project by sending an email to docs@gnome.org. You can also add your comments online by using the GNOME Documentation Status Table. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. A copy of the GNU General Public License is included as an appendix to the GNOME Users Guide. You may also obtain a copy of the GNU General Public License from the Free Software Foundation by visiting their Web site or by writing to

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