In Search of 15C+ ROM image

[John Keith]

(07-17-2022 08:46 AM)redglyph Wrote:  ... I love the HP-15C, but these days it's only interesting to people who have the nostalgia of old calculators and who like the RPN system. I have the impression that people would rather pay a little more for a graphic calculator like an HP Prime which is easier to handle and offer more functionality, even if the quality is not the same. Or, if they don't need so much complexity, a simpler one like the HP-35S. It seems there isn't enough demand to maintain a large catalogue of calculators anymore. Laptops and smartphones are probably partly to blame.

It's not just about nostalgia, but also ease of use and productivity. The Prime is fast and powerful, but IMHO not as well suited to interactive exploratory problem solving compared to RPN and RPL calculators. Ironically, if no more RPN calculators are made, the only options will be our laptops, tablets and smartphones.