Who uses the 43S simulator under Windows, Linux, or on a Mac?

General discussion about calculators, Swiss Micros or otherwise
User avatar
Walter
Posts: 1571
Joined: Tue May 02, 2017 11:13 am
Location: Close to FRA, Germany

Re: Who uses the 43S simulator under Windows, Linux, or on a Mac?

Post by Walter » Fri Jun 12, 2020 3:59 pm

EM41 wrote:
Fri Jun 12, 2020 3:13 pm
Programming is not working, I assume this is a work in progress.
Looking into the ReM is highly recommended: whatever is marked green should work - everything else doesn't yet. 8-)
DM42 SN: 00041 Beta
WP 43S running on this device

HP-35, HP-45, ..., HP-50, WP 34S, WP 31S, DM16L

EM41
Posts: 118
Joined: Mon Mar 30, 2020 12:10 am
Location: Overijssel Netherlands

Re: Who uses the 43S simulator under Windows, Linux, or on a Mac?

Post by EM41 » Fri Jun 12, 2020 9:04 pm

Walter wrote:
Fri Jun 12, 2020 3:59 pm
EM41 wrote:
Fri Jun 12, 2020 3:13 pm
Programming is not working, I assume this is a work in progress.
Looking into the ReM is highly recommended: whatever is marked green should work - everything else doesn't yet. 8-)
Ah manuals, yes they always limit the possibilities of equipment and software :D
HP41C (2x), HP41CV, HP41CX, DM41X β, DM42, HP11C, HP48G, HP97

User avatar
Walter
Posts: 1571
Joined: Tue May 02, 2017 11:13 am
Location: Close to FRA, Germany

Re: Who uses the 43S simulator under Windows, Linux, or on a Mac?

Post by Walter » Fri Jun 12, 2020 10:50 pm

EM41 wrote:
Fri Jun 12, 2020 9:04 pm
Walter wrote:
Fri Jun 12, 2020 3:59 pm
EM41 wrote:
Fri Jun 12, 2020 3:13 pm
Programming is not working, I assume this is a work in progress.
Looking into the ReM is highly recommended: whatever is marked green should work - everything else doesn't yet. 8-)
Ah manuals, yes they always limit the possibilities of equipment and software :D
... and reduce the number of assumptions a user must make. Less freedom. Bad, bad, I admit ... !
DM42 SN: 00041 Beta
WP 43S running on this device

HP-35, HP-45, ..., HP-50, WP 34S, WP 31S, DM16L

User avatar
chr yoko
Posts: 22
Joined: Tue May 05, 2020 11:23 pm
Location: France

Re: Who uses the 43S simulator under Windows, Linux, or on a Mac?

Post by chr yoko » Mon Jun 15, 2020 10:01 pm

Hi,
I have been playing a bit with the WP43S PC emulator that works great , thanks ! 8-)

First thing as my usual calculator bench, I tried unit conversions menu under the "f6" "U->" key.

And i did not found some quite usefull conversions for mechanical guys :

psi <=>bar (needs to convert first to atm or Pa) ;
lbf⋅ft <=> N.m ;

Of course , i invested long ago into a digital Torque wrench and some air pumps with digital gages (low and high pressure).
Tools that can be switched between Imperial and IS units on the push of a button...

But wouldn't it be a nice feature to get those conversions right into the ultimate RPN calculator ?
DM41L SN01063 - DM42 SN05658

User avatar
Walter
Posts: 1571
Joined: Tue May 02, 2017 11:13 am
Location: Close to FRA, Germany

Re: Who uses the 43S simulator under Windows, Linux, or on a Mac?

Post by Walter » Mon Jun 15, 2020 10:40 pm

Thanks for your thoughts. Fundamental rule in our menu of unit conversions is that each conversion begins or ends in an SI unit.

Thus the conversion psi->Pa. And almost every mechanical guy knows by heart that 1 hectopascal equals 1 millibar, but if in doubt you can call (after psi->Pa) Pa->bar and you're done. Two simple keystrokes after calling the F&p submenu. Hard to imagine anything shorter.

About torque conversions: Press N->lbf EXIT [x:] [f] m->ft. and you're done. Five keystrokes after calling the F&p submenu. Hmmh. Could be done quicker with 'Nm<->lbf ft' located in the second view of U-> between the two dB conversions. Will think about it.
(Edit: Consider 'Nm<->lbf ft' being implemented.)
DM42 SN: 00041 Beta
WP 43S running on this device

HP-35, HP-45, ..., HP-50, WP 34S, WP 31S, DM16L

User avatar
Over_score
Posts: 98
Joined: Fri May 05, 2017 9:37 pm
Location: France

Re: Who uses the 43S simulator under Windows, Linux, or on a Mac?

Post by Over_score » Tue Jun 16, 2020 2:43 pm

(Edit: Consider 'Nm<->lbf ft' being implemented.)
Is implemented :D
DM42 (SN 00284 & 03835), DM15L, HP41CV, HP42S, HP35s, WP34S, HP Prime

User avatar
chr yoko
Posts: 22
Joined: Tue May 05, 2020 11:23 pm
Location: France

Re: Who uses the 43S simulator under Windows, Linux, or on a Mac?

Post by chr yoko » Wed Jun 17, 2020 2:27 pm

:o
Great !
Merci ; Danke !
DM41L SN01063 - DM42 SN05658

User avatar
Jaymos
Posts: 614
Joined: Sun Nov 04, 2018 7:03 pm
Location: Cape Town

Re: Who uses the 43S simulator under Windows, Linux, or on a Mac?

Post by Jaymos » Wed Jun 17, 2020 9:26 pm

Walter wrote:
Mon Jun 15, 2020 10:40 pm
Thanks for your thoughts. Fundamental rule in our menu of unit conversions is that each conversion begins or ends in an SI unit.
I think part of the calc usability would be that a unit on the gauge in front of you would be available for conversion, whether it starts and/or ends in SI units or not, and that would include commonly used SI multiplied units, such as km and g. (I mean, some know there are 5280 ft to the mile, and you don't expect the those folks to multiple or divide by 5280, but we must multiply or divide continuously with 1000 or 100 ;-) )

Also, I think that the unit conversions may form an excellent use case for your catalog browser, in addition to the shortcuts menus. (But programming that is beyond my capabilities!)

Thus the conversion psi->Pa. And almost every mechanical guy knows by heart that 1 hectopascal equals 1 millibar, but if in doubt you can call (after psi->Pa) Pa->bar and you're done. Two simple keystrokes after calling the F&p submenu. Hard to imagine anything shorter.
I once (2020-01-03) asked (elsewhere) for mm.Hg <> Pa and Walter, you said "...we have mm.Hg in our portfolio already! 1 mm.Hg = 1 torr !".

However, this is not true. It is true that it is in the portfolio, but the equality is not:

The torr is defined as 1/760 of one standard atmosphere, while the atmosphere is defined as 101325 Pa. Thus, 101325/760 = 133.3223684210526315789473684210526315789473684210526315789... Pa.
The 43S gives 1 Torr to be 133.3223684210526315789473684210526 Pa. This is correct.

The millimeter of mercury by definition is 133.322387415 Pa (13.5951 g/cm3 × 9.80665 m/s2 × 1 mm).
The 43S gives 0.001 [m > in.] [in.Hg > Pa] > 133.3223684210526315789473684210526 Pa
This factor is incorrect because you assume 1 mm.Hg = 1 Torr, which it is not (any more).
Source

So, I am glad to say that due to the unique conversion factor [mm.Hg <> Pa] does deserve a place in the 43S. That is, despite my opinion that even if it had been the same, that it still would deserve place due to some people and/or equipment using it.

So this is my plea to request mm.Hg <> Pa again!

Edited for a 1000 factor being incorrect :mrgreen:
Jaco Mostert
Elec Eng, South Africa
WP34C, HP42S, DM42 for complex math; 35S, 28C, 32Sii, WP34S, EL-506P, EL-W506, PB700; owned FX702P & 11C; used 67 & 85. iOS: 42s (Byron), Free42, WP31S/34S, HCalc.
WP43C running on DM42 sn. 03818 .

User avatar
Walter
Posts: 1571
Joined: Tue May 02, 2017 11:13 am
Location: Close to FRA, Germany

Re: Who uses the 43S simulator under Windows, Linux, or on a Mac?

Post by Walter » Wed Jun 17, 2020 10:58 pm

About two outdated pressure units, please allow me quoting the English Wikipedia where you can expect some understanding for such units:
One millimetre of mercury is approximately 1 Torr, which is 1/760 of standard atmospheric pressure (101325/760 ≈ 133.322368421053 pascals). Although the two units are not equal, the relative difference (less than 0.000015%) is negligible for most practical uses. ... The precision of modern transducers is often insufficient to show the difference between the torr and the millimetre of mercury.
The key field of application of mm.Hg is medicine. I'm sure no physician or physiologist will ever object if I declare 1 mm.Hg equals 1 torr for them (these people are very content with % accuracy generally - they have other problems to solve).

Anybody who does precision pressure measurements (meaning 3-digits precision and more) will use pascals or millibars directly - and owns the respective gauges, properly calibrated of course.
DM42 SN: 00041 Beta
WP 43S running on this device

HP-35, HP-45, ..., HP-50, WP 34S, WP 31S, DM16L

User avatar
Jaymos
Posts: 614
Joined: Sun Nov 04, 2018 7:03 pm
Location: Cape Town

Re: Who uses the 43S simulator under Windows, Linux, or on a Mac?

Post by Jaymos » Thu Jun 18, 2020 12:23 am

Walter wrote:
Wed Jun 17, 2020 10:58 pm
About two outdated pressure units, please allow me quoting the English Wikipedia where you can expect some understanding for such units:
One millimetre of mercury is approximately 1 Torr, which is 1/760 of standard atmospheric pressure (101325/760 ≈ 133.322368421053 pascals). Although the two units are not equal, the relative difference (less than 0.000015%) is negligible for most practical uses. ... The precision of modern transducers is often insufficient to show the difference between the torr and the millimetre of mercury.
The key field of application of mm.Hg is medicine. I'm sure no physician or physiologist will ever object if I declare 1 mm.Hg equals 1 torr for them (these people are very content with % accuracy generally - they have other problems to solve).

Anybody who does precision pressure measurements (meaning 3-digits precision and more) will use pascals or millibars directly - and owns the respective gauges, properly calibrated of course.
Engineers (like me), not unlike the physicians you claim, should need no more than 2 digits in our 43 devices, but I like the calculator's accuracy regardless. Even though I also have other problems to solve, just last week, I had to increase the internal digits to 75 digits to get a reasonable 30+ digit accuracy on your new 43S function ln(1+x). So accuracy is important to me at least. I will fix my own [mm.Hg>Pa] inaccuracy because I want it right, not because I need to use all the digits for my gauges and charts. You do with yours what you like ;-)
Jaco Mostert
Elec Eng, South Africa
WP34C, HP42S, DM42 for complex math; 35S, 28C, 32Sii, WP34S, EL-506P, EL-W506, PB700; owned FX702P & 11C; used 67 & 85. iOS: 42s (Byron), Free42, WP31S/34S, HCalc.
WP43C running on DM42 sn. 03818 .

Post Reply