24-MAR-2021 Simple Units

[spiff72]

(03-24-2021 04:04 AM)Han Wrote:  

(03-24-2021 03:48 AM)spiff72 Wrote:  I just tried this out, but I have a few questions. In order to create a unit like Newton Meters, would it require adding "N*m" in the list in the code (actually creating a new group called "Torque" and placing that under that entry)?

Also, does the conversion only work when in Textbook/Algebraic mode? There is no "Sto>" button on screen when in RPN mode (which i am using 99% of the time).

Yes, so create a new entry in the catlist variable called "Torque" and add in all your torque units in the symlist variable. (Don't forget to add a comma at the end of the previous entry!)

Unfortunately you lose a lot of the efficiency in RPN mode (which to this day seems very rudimentary in my opinion). In RPN mode the keystrokes are a little more drawn out:

5
[Shift][_]
(pick units category)
(pick unit)
[Enter]
1
[Shift][_]
(pick target unit)
[Enter]
[Shift][C]
(Tools -> Convert; if Tools was previously selected then it automatically shows this menu)
[Enter]

So basically you still benefit from the "previous" category being saved when pressing [Shift][_] and don't have to re-navigate through the menus in RPN mode but it is not as convenient as in non-RPN mode. I personally don't use this mode on the Prime (I have other HP calculators I prefer to use for RPN/RPL.)

I took a shot at adding those elements but I ran into some syntax errors when I tried to use the Sto> softkey to convert. I need to revisit this later.