Was gifted some old HP's today... questions

[johnb]

(11-22-2022 12:33 AM)tppytel Wrote:  ...
10C + User Manual
15C + User Manual + Advanced Functions Handbook
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I've been wanting a small, handy desk calculator for quick calculations that's not just a TI-30, and I think the 10C or 15C will be great there. I generally use my Prime for serious work, but sometimes that's upstairs in my briefcase and I don't feel like fetching it. Clearly the 15C is more powerful but the 10C already does everything I would need for quick calculations. Are there are any other important usability considerations between the 10C and 15C? I'm thinking of selling the 15C and getting a Swiss Micros 15 or 42 clone just to play with and to have more interesting calculators to share with kids.
...

That 10c -- while the least powerful of the Voyager series -- may be the most valuable in terms of sales price, due to how few were made. You might want to more deeply investigate those prices versus the 15c if you're thinking of selling.

Interesting you mention keeping one close at hand. Personally, I find that the 11c hits the sweet spot between functionality and ease of use. Both the 11c and 15c have a digit-at-a-time backspace key that the 10c lacks, and if you use any one of this series of calculator a lot, you'll appreciate having it. The 15c can handle complex numbers and small matrices, which the 11c and 10c cannot, but for those, you'll probably prefer using your 50g or your Prime. I find the layout is simply better on the 11c --- but if you told me I could only ever carry either a 10c or a 15c from now on instead of my 11c, I'd definitely pick the 15c, not for the additional power, but for that doggone backspace key!

(The other HP that really hits a sweet spot between functionality and accessibility is the 32sII, but I digress...)


Just my highly opinionated... er... opinion. ;-D