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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


LicenseVerified byVerified onNotes
License:GPLv2arca01 September 2004

Leaders and contributors

Paul Pelzl Maintainer

Resources and communication

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

Software prerequisites

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

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


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