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# NPI - Calculatrice en Notation Polonaise Inverse. # Author: Mikael 'MicKey' NAVARRO <klnavarro@gmail.com> #

NPI

NPI is an unpretentious calculator in RPN mode.

In the Twenties, Jan Lukasiewicz developed a system of formal logic making it possible the mathematical expressions to be indicated without brackets while placing the operators avant (notation of prefix) or after (notation of suffix) the operands.
The notation of suffix is named Polish notation reversed (RPN = Reverse Polish Notation) in the honor of Lukasiewicz.

With this program you will be able to calculate maths expression in the Unix shell using the RPN notation and with historic and completion support.

Licence

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NPI is a free software available under the terms of the GNU General Public License. Refer to the file COPYING (which should be included in this distribution) for the specific terms of this licence.

Requirements

Python 2.3 or later.

Theorically must works on all platforms.

Usage

Simply run::

$ python -O npi.py

See INSTALL file for more details ...

Tools

A primitive IRC bot is also available, see documentation for more details.

--
MiKael NAVARRO