grpn
GRPN is a RPN calculator for the X Window system built using the GIMP Toolkit (GTK). GRPN works with real numbers, complex numbers, matrices, and complex matrices. Numbers can be displayed in 4 different radix modes, and complex numbers can be displayed in either Cartesian or polar form, in decimal or engineering notation.
GRPN is copyrighted under the terms of the GNU General Public. License. See the file LICENSE for more details.
Author of grpn is: Paul Wilkins <paul "dot" wilkins "at" analog "dot" com> +
Changes since version 1.1.2-3: Jens Getreu <getreu "at" web "dot" de> +
Support for Pango-fonts by Jean-Pierre Demailly.
Changes since version 1.5.2: Nathaniel Clark