ENG key simulation

[salvomic]

hi,
I would like to thank the user cclinus for the original post, and now I'm posted in this thread a new version of the program to simulate the key ENG (←ENG and ENG→) that's on some calculator (also old HP, like HP 35 if I well remember).
The Prime should have such a key or at least simulate it. Our proposal (mine and cclinus') is to use key definition (User -> Shift-Help) of the keys ÷ X - + to get ENGB() and ENGA() (forward and afterward), prefix() (prefixes like m, µ, n, p, k, M, G...) and reeng() to restore the original float number.
Sometimes an user would like to momentarily switch in ENG mode and this "ENG simulator" could help.

Salvo

[salvomic]

I thank you Tyann for his interesting proposal: to use this naming of the functions:
ENG→, ENG←, →PREFX and →ENG

(01-07-2018 12:35 PM)Tyann Wrote:  Bonjour
Ce programme est vraiment très bien félicitations aux auteurs.
...
using the 8592 and 8594 code characters
The functions become:
ENG→, ENG←, →PREFX and →ENG
What do you think ?
Suggestion if you allow:
to have the functions: 1: PREFX→ and 2: PREFX←: just call
1: →ENG, ENG→ and →PREFX
2: →ENG, ENG← and →PREFX.

(see this post in the MoHPC Prime Library).

As Tim said in another post (about →QPI and the change of its name), maybe this could have some issues with Catalog, but it would be an interesting naming, IMHO.
Any help and suggestion appreciated.

Salvo

[Dieter]

(12-12-2017 06:38 PM)salvomic Wrote:  I would like to thank the user cclinus for the original post, and now I'm posted in this thread a new version of the program to simulate the key ENG (←ENG and ENG→) that's on some calculator (also old HP, like HP 35 if I well remember).

No, the HP35 had no display mode setting at all, it always used a kind of STD or ALL mode. But 30 years later the HP35s featured two keys ←ENG and ENG→ for temporarily switching to ENG display and changing the exponent by ±3.

Edit: sorry, of course the 35s came 35 years after the original 35.

Dieter

[salvomic]

(01-07-2018 06:13 PM)Dieter Wrote:  ... But 30 years later the HP35s featured two keys ←ENG and ENG→ for temporarily switching to ENG display and changing the exponent by ±3.

And that is the goal to have in the Prime a "simulation" of a missing ENG key. The Prime should have something (a soft key?) to switch back and forth ±3 exponent (←ENG and ENG→ ). This program for now is only a way to simulate that missing key...

I added at the cclinus' program a routine to get also a switching among prefixes (m, µ, n, p..., M, G, T...), another requested and useful functionality.

Salvo