[dm319]

This is a project to imagine what HP would have made today had they still been making calculators. It is unusual for a newly designed RPN calculator to be released, although there have been several re-releases of older HP models, such as the HP-15ce, HP-16c, and a series of calculators made by Swissmicros - DM-15L, DM-42, DM-32, but all based on designs dating back 30-50 years.

The R47 has been many years in the making and is a small open source project which has collaborated with the Swiss manufacturer of calculators, SwissMicros. It has a superset of functions over older HP models and many more too, including complex solve, default 34 digit decimal precision, 1000 digit integers, graphing, extensive complex support, etc and is substantially customisable.

I have no affiliation with the project, but excited that there is a new RPN machine commercially available.

[0] https://youtu.be/5A-pmjawJg8?si=11Ehf5SnzkZF79-e

[TheOtherHobbes]

I don't think HP would be making something like this.

The original calculators, from the discrete HP9100A onwards, pushed tech to its limits.

The HP65 (1975) was a jaw-dropping masterpiece. When most calculators were four function, and scientific calculators were still exotic, a pocket-sized programmable calculator with a magnetic card reader was beyond the imagination of most engineers, never mind most users.

This is more of a nostalgic tribute act. It's nice it exists. But it's looking backwards, not forwards.