Multiline HP15C

[burkhard]

Just tossing in that the design for the multi-line 15 is gorgeous. My 15C got me through engineering school back in the 80s and was/is a great carry-around calculator. Back in the day, I was *really* fast with it... a bit out of practice now :-)

The landscape format is quite dear to me. While it's impractical to pack a big screen on it for graphing, what Walter did here is most excellent—a few lines of stack visibility and some ability for alphanumeric are really nice.

I see other features that would make great additions to the 15C as well: support for multiple bases, a catalog of functions, an alpha register, &c. Wow.

Knowing Walter, he probably already wrote a manual or at least sketched out a detailed spec. Does such a document (publicly) exist?

If somehow / someday this is ever turned into hardware, I'd be sending my $ in for sure. So many great ideas and projects out there... just need to (rebuild) a market which I bet still exists in reduced form. I reckon there are an awful lot of geek engineers / scientists out there who would still be all over things like this or more currently, the DM-42, if they only knew about it. A short viral video is needed that can get shared/circulated through social media. I've seen Kickstarter support explode for what I would think are pretty niche items. It's all about awareness. Even getting a DM42 featured on a popular techie YouTube channel like EEVblog (he's got 500,000 subscribers, and if I recall has waxed poetically on the HP41C in the past) would be instant orders by the wheelbarrow.