a Financial, Scientific, Statistical & Programming calculator for GTK+ (since 1999!)
gdcalc is a financial, statistics, scientific and programmers calculator for Unix and Linux. The GUI was written with glade(1) and uses the Gtk-2 toolkit - so it may well be compatible with themes and other whiz-bang features of those systems. gdcalc provides both Algebraic notation (ie. conventional, TI or Casio style) and Reverse Polish Notation (RPN or Hewlett-Packard style). If you've not heard of RPN before, you are probably familiar with algebraic calculators. Very briefly, while simpler and more natural to use, RPN calculators may need some study eg. they have an Enter key instead of the equals key and are based on the use of a stack.
gdcalc is based on my venerable dcalc RPN calculator which I wrote about a million years ago to learn C and curses - about 1983, I suppose.
The original dcalc for curses (Unix console) is at dcalcCurses
If you want to know more about RPN calculators (and why they are more intuitive than algebraic calculators) take a look at http://www.hpcalc.org
Note: if you are using a locale other than English, please make sure you run gdcalc with the following command (thanks to Gösta):
LC_NUMERIC=en_US gdcalc &
All functions are available in both algebraic and RPN modes:
There is a full set of unit conversions including:
Metric, US and British units are supported - e.g. a US gallon is a measly 3.78 litres as opposed to the much more generous British gallon at 4.54 litres.
gdcalc is fully programmable (you've got the source, ninny) and I've left loads of blank keys on the GUI for you to add in your favourites. If you add functions that you think would be interesting for the world at large, please let me have the diffs and I'll put them in. Fixes also welcome … upgrade ideas tolerated.
Source code downloads and svn(1) repository is at Sourceforge
These were compiled on Fedora-22 but may well work on any recent linux.
Unless you want to pick apart the tarball and install files manually, you can use stow(1) to install these.
Install using stow(1) with:
mkdir -p /usr/local/stow cd /usr/local/stow download_dir= # path to the tarball arch=x86_64 # or i386 tar xzf $download_dir/gdcalc-$arch.tgz stow gdcalc
Copyright (C) 1997-2012 Bob Hepple 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.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
For corrections/additions/suggestions for this page, please send email to: bob dot hepple at gmail dot com
Copyright © 1997-2015 Bob Hepple. All rights reserved.