I'm in love

[bxparks]

(01-28-2024 07:03 PM)richmit Wrote:  Mostly it was the hyperbolics, angle conversions, rectangular/polar, and stats.

Definitely agree that HYP functions are hard to reach on the 42S. Did you try assigning them to the CUSTOM menus? That's only 3 keystrokes.

With regards to angle and polar conversions, I personally think the CONVERT menu on the 42S is easy enough to use. The 15C wins for having direct buttons for those.

As for stats, I think the 42S wins over the 15C here. I couldn't remember if the 15C even did curve fitting (consults manual: only does linear regression), and I couldn't remember how to use the various keys ([y,r], [L.R.]) without consulting the manual. The menu system on the 42S is easier to remember for me.

(01-28-2024 07:03 PM)richmit Wrote:  The efficiency for complex numbers is close with the 42S, but I really like the dual stack approach on the 15C. Part of it is the simplicity -- no need for functions like Re, Im, Conj, Abs, or Arg. Or the way you enter pure imaginary numbers (on the 15C "123.4 [shift] [IM<>RE]" vs "0 [enter] 123.4 [shift] [complex]" on the 42S).

Agree that entering complex numbers on the 42S was cumbersome. I like the 35s method, with a dedicated Complex-i button which makes your example just "[i] 123.4". I liked it so much that added that to my RPN83P calculator app, so your example becomes just "[2ND] [i] 123.4".

(01-28-2024 07:03 PM)richmit Wrote:  I use the 16C for that stuff. It pretty much lives on my electronics work bench right beside the logic analyzer display.

Heh. I don't have a 16C. I used to pull out my phone for JRPN 16C. But now I use RPN83P because I added all the 16C functions that I need.

(01-28-2024 07:03 PM)richmit Wrote:  I wrote a several programs for the 42 to do base-n stuff. I have them all on github with several other programs. You might find them useful when you are away from your 16C.
https://richmit.github.io/hp42/base.html

Cool, thanks for the link. You got some interesting stuff in your repo.