Orpie 1.4.3 review

Orpie is a fullscreen RPN calculator for the console

License: GPL (GNU General Public License) File size: 348K Developer: Paul Pelzl

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Orpie is a fullscreen RPN calculator for the console. Its operation is similar to that of modern HP calculators, but data entry has been optimized for efficiency on a PC keyboard.

Features include extensive scientific calculator functionality, units support, base conversions, command completion, configurable keybindings, and a visible interactive stack.

Here are some key features of "Orpie":
real and complex numbers and matrices
extensive function library
command completion of function names
base conversions
units and conversion factor handling
exact integer arithmetic, with unlimited integer size
visible stack, with browsing/modification capability
user-defined variables
user-configurable keybindings, via a Mutt-like rcfile
context-sensitive help

Requirements:
some sort of Unix-like operating system, e.g. Linux, *BSD, Mac OS X...
OCaml v3.07 or greater
the GNU Scientific Library v1.4 or greater
the ncurses library

What's New in This Release:
This release has a bugfix for the crash caused by executing uconvert() with only one element on the stack.