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LCVII Publisher Description

LXVII is an HP-67 calculator simulator for the Macintosh OS X platform. It was conceived because I needed a calculator for my taxes and after downloading a bunch of RPN based calculators I found most of them wanting. Some were lacking basic features, others had so many features they were too confusing or cumbersome to use. I plugged in my HP-67, with its long-dead batteries and magnetic card reader, and copied the answers from display to tax-forms by hand.

At about the same time, I had been looking for an application to use as a springboard for diving into learning about Mac OS X application programming. It seems that an RPN calculator is a good application for learning an object-oriented application framework, (a lot of the calculators I downloaded were starter applications) so, a couple of years, and lots of reading and debugging later, LXVII is ready for beta test.
OS: PPC/Intel
Requirements: Mac OS X 10.4.6 or later.
Whats new:
Version 1.0.0:

Fixed the only problem found in Beta: Data and program "card" files are now saved with a lxvii file type, and are correctly read back in. (Thanks to Richard Hartman for finding it.)
Updated version information

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