Plus42 Equations, Preview Release

[Thomas Okken]

(04-22-2022 12:15 AM)Michael de Estrada Wrote:  

(04-21-2022 08:52 PM)tgray Wrote:  Plus42 sounds really exciting!...any chance of this ever making it to a Swiss micros hardware unit?

This would require a completely new hardware platform with an additional row of keys. Either that, or share the top row of keys with the softkeys, a la HP 42S with a TOP.FCN toggle. Anyways, this is a question you should ask of SwissMicros (Michael Steinmann), not Thomas Okken.

Plus42 can be used without the second row, or even without the top two rows. You can load the standard Free42 skin, or the DM42 skin, to see what that looks like.
Basically, UNITS and DIRS are moved to the first row of CATALOG to make them easy to access; instead of DIR.FCN, UNIT.FCN, and EQN.FCN, you can use the DIR, UNIT, and EQN sub-catalogs under CATALOG; instead of EQN, you can use the [=] menu key in the SOLVER and ∫f(x) menus; and you can reach the TVM menu using XEQ "TVM".

Only PLOT would be unreachable, since the function that enters it is called PLOT.MENU, which is too long to type with XEQ. But that could be fixed by simply shortening that name.

If someone is interested in some more serious hacking, Plus42 could possibly also be made into a firmware for HP graphing calculators, like newRPL. The Intel library would have to be replaced with something smaller, but it might fit with BCD20.