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RPN calculator

'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.


User manual available in PDF format from pessimization.com/software/orpie/manual.pdf



version 1.5.1 (stable)
released on 7 September 2007


Related Projects



Verified by

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1 September 2004

Leaders and contributors

Paul Pelzl Maintainer

Resources and communication

AudienceResource typeURI
Bug Tracking,Developer,SupportE-mailmailto:psquared.orpie@soodonims.com
Debian (Ref)https://tracker.debian.org/pkg/orpie

Software prerequisites

Required to buildOCaml 3.07 or later
Required to buildGNUsl 1.4 or later
Required to buildncurses

This entry (in part or in whole) was last reviewed on 22 February 2018.


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