gdcalc has 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 need some study eg. they have an Enter key instead of the equals key.
See the new web site at My Wiki
Note: if you are using a locale other than English, please make sure you run gdcalc with the command
bash$ LC_NUMERIC=en_US gdcalc &
(thanks to Gösta)
... and anything else that units(1) can cope with. 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.
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.html
There is another version of this for the Psion (RPN only) at: ../psion and it has a manual which is pretty much applicable to the Unix version (the main exception being the lack of OPL on Unix - hence programmable keys and graphics).
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
Have fun with it! Bob Hepple: mailto:email@example.com
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.
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