grpn: grpn (graphical reverse polish notation (RPN)
grpn:
grpn: GRPN is written in C and uses the GIMP Toolkit (GTK) on top of X11.
grpn: GRPN was developed under Linux but has also been tested under SunOS
grpn: and Solaris. It should work with almost any UNIX, though.
grpn: GRPN works with real numbers and complex numbers. Numbers can be
grpn: displayed in 4 different radix modes, and complex numbers can be
grpn: displayed in either Cartesian or polar form. GRPN uses a stack and
grpn: reverse polish notation to evaluate expressions. The stack in GRPN is
grpn: infinite and limited only by available memory.
grpn: Homepage: http://lashwhip.com/grpn.html