Flush and recessed displays of hp 27s calculator.

[Vincent Weber]

(06-12-2024 03:57 PM)Dave Britten Wrote:  $55 USD is a good price for a great calculator. The 27S might not be "programmable" in the traditional sense, but there are many use cases where the solver is quicker, easier, more intuitive, and more memory efficient than writing an RPN program. Of course, you're probably not going to want to try to use it to build a two-way ANOVA or something, but you could! Having the 27S as your primary calculator with the 20S for backup when you really just need to write a keystroke program is a good approach.

For reference, I have two of them, and they're both the older variety with the flush display lens. These seem to be much more numerous than the later version with recessed display area.

I use Plus42, so I have both worlds, which can be blended together (calling an equation from a RPN program and vice-versa) ?