I'm using an HP42s, which is so close to the original that I've not used either of my actual physical 42s' for quite some time. It's also available for Windows and Mac, I think it's available for Mac, but I have the Windows version installed on my desktop and my laptop.

On 3/29/2021 3:46 PM, Henk Terhell wrote:
For my work I used slide rules until the period of HP calculators. Now I'm using an excellent HP41C simulator on my android phone.

Henk

Op 2021-03-28 om 20:25 schreef Larry Colen:

On Mar 28, 2021, at 11:19 AM, Alan C <[email protected]> wrote:

In my youth I was a Whizz kid with a slide rule. Took over my Dad's & later bought a better one. I taught a couple of generations of Sixth Formers how to use them and then along came the Scientific Calculator. End of story. Anyone want a Slide Rule?
I actually have a small collection, because I have a special appreciation for obsolete and imprecise equipment.

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