Top three calculators ?

[StephenG1CMZ]

(11-19-2018 07:03 AM)Massimo Gnerucci Wrote:  

(11-19-2018 03:21 AM)Valentin Albillo Wrote:  Most unfortunately because, while "Rendezvous with Rama" is truly excellent, the two subsequent sequels are just textbook examples of blatant money milking. IMHO.

Quite true.
And it all began with an asteroid crash on northern Italy!

If you are interested in asteroid crashes AND Italy (NB not asteroid IN Italy) you might be interested in the Planetary Defence Conference 2015
Planetary Defense Conference 2015
The 2015 Conference was held in Italy. I Just watched the VIDEOS (downloadable). Very interesting.
Some simulations need a week on a supercomputer, but some simpler formulae could probably be tackled on a calculator - though I'd need more introductory explanations first.

[Massimo Gnerucci]

(03-03-2019 07:31 PM)StephenG1CMZ Wrote:  If you are interested in asteroid crashes AND Italy (NB not asteroid IN Italy) you might be interested in the Planetary Defence Conference 2015
Planetary Defense Conference 2015
The 2015 Conference was held in Italy. I Just watched the VIDEOS (downloadable). Very interesting.

Thank you Stephen. Do you have any link to it?

[StephenG1CMZ]

The planetary defence conferences are at http://pdc.iaaweb.org
Select "Past Conferences" for 2015.
Video is hosted at esa - the 2015 videos are downloadable*, the 2017 are watchable on YouTube.
http://www.esa.int/spaceinvideos/Sets/PDC2015

*If using a mobile browser, the download option is not shown. Simply change your browser setting to Desktop if necessary.

[Massimo Gnerucci]

Thank you!

[GVHOVE]

(03-03-2019 02:17 PM)Thomas Okken Wrote:  Could you share that program? With the necessary modifications, that could make a cool Free42 demo as well.

Thomas,

Will send you via PM as soon as I have time to find a working version (have several laying around, and want to test before I send it over)

Regards,

GVHOVE

[Bill Duncan]

My 3 fav for very different reasons and use cases..

1. HP-41CX (familiarity, as I had one of the first hp-41c's..)
2. HP-15C (portability, I love the form factor)
3. HP-48GX (programming, I love RPL..)

Still one of my favourites is my HP-29C, just because.. It was such a neat machine in it's day.

[Craig Bladow]

(03-04-2019 11:02 PM)Bill Duncan Wrote:  My 3 fav for very different reasons and use cases..

1. HP-41CX (familiarity, as I had one of the first hp-41c's..)
2. HP-15C (portability, I love the form factor)
3. HP-48GX (programming, I love RPL..)

Still one of my favourites is my HP-29C, just because.. It was such a neat machine in it's day.

Bill, I really like this list!

[freelanzr]

Edited to reflect current use:

1) wp34s
most often used for basic/sci calc needs

2) DM42
favorite for adv/eng calc needs - cmplx, mtrx, prgm

3) HP-16C
best special purpose calc for CompSci needs

[freelanzr]

The top calculators I actually use most often:

Edited, to reflect current use:
At work, office:
wp34s, desktop for general use.
HP-48SX, desktop, for working with units and eqns

At work, lab:
HP-32SII left on benchtop, normal use

Work Laptop travel bag:
DM42

At home:
HP-16C and HP Prime, programming use

[Marco Polo]

1) HP50g at work (UOM conversion, solving complex equations/systems, programming)
2) HP35s at work (daily number crunching, some very small programs; lacks of connectivity)
3) HP50g at work (physical + Emu48+ on PC + Go49Gp on phone)

I am attracted by DM42, but still cannot be used to HP42/Free42 paradigma :-(

[Domino]

Bonjour,

1) HP48GX + HP82240B (User & sys RPL + Saturn ML with Jazz)
2) HP200LX at work (123 & Calc & appointement book)
3) HP49G (idem 48 with emacs/ASM)

Dominique

[BartDB]

1) HP-50g (physical: 1 each at work and at home, EMU48 on most of my PCs and now also on my Android phone)
2) DM15-CC the truly pocket sized advanced scientific programmable calculator
3) Sharp EL-W506 (especially my recently acquired EL-W506T)

   

(06-19-2019 12:21 PM)Marco Polo Wrote:  I am attracted by DM42, but still cannot be used to HP42/Free42 paradigma :-(

Same for me. I think because my first HP calculator was the HP-28C, I am too set in my ways with RPL to learn the HP-42.

[Hans Brueggemann]

1) HP-71B / FRAM71B-1024, often w/ HP82164A, HP82169A for playing with precision test gear.
2) HP-41CX since '83, nowadays mostly used as 4-banger.
3) HP-97, b/c of comfortable display and "paper memory". when desk space allows for it, otherwise 2)

[John Keith]

(07-04-2019 12:43 PM)BartDB Wrote:  Same for me. I think because my first HP calculator was the HP-28C, I am too set in my ways with RPL to learn the HP-42.

Me as well, I'm afraid. I still use the older calculators regularly but for real programming it's the 50g or EMU48.

[Gerson W. Barbosa]

[Archilog]

(07-04-2019 07:49 PM)John Keith Wrote:  

(07-04-2019 12:43 PM)BartDB Wrote:  Same for me. I think because my first HP calculator was the HP-28C, I am too set in my ways with RPL to learn the HP-42.

Me as well, I'm afraid. I still use the older calculators regularly but for real programming it's the 50g or EMU48.

Interesting: I was born with RPN (to say the least) and despite my efforts, never succeeded in understanding RPL... or even play with it or... simply needed it, perhaps.
Now you both say it is impossible to learn RPN since you were born with RPL...

I'm wondering why, but no need to answer, it should come alone.

[jlind]

The current usage . . . subject to change without notice:

• DM42: the goto for straightforward number crunching involving anything transcendental for which the analyses have already been accomplished. It has displaced the TI-58 in this role.
• TI Voyage 200: very convenient CAS with larger screen than the "portrait" oriented LCD and QWERTY keyboard. A bit slower than the TI-89 Titanium with the same underlying architecture, but its screen size and keyboard more than compensate for it.
• HP Prime G2: rapidly taking over from the 50g for its sheer speed as I ramp up its learning curve. It's quite powerful, but definitely a different direction in practical use compared to the 48 and 50g that preceded it. Alternative to the TI Voyage 200 and preferred over the Nspire CX II CAS.
  

I still use others for quick four-banger number crunches and have a number of them laying about in various places to keep on in convenient reach. Using an HP Prime to add two numbers together to calculate price with S&H and sales tax, or divide them to compare price per unit volume or mass of different sizes of grocery packaging is overkill.

John

[edryer]

OK four...

HP-50G
Much maligned but great build in my opinion and as a platform for College Maths it is unparalleled. Every single function I need is available and many I haven't even heard of that I expect have extremely limited use but are still are there. It is an absolute powerhouse.

HP-28S
Best Keyboard ever. Absolutely beautiful machine. Pity about the weak battery door, but there seem many still available with good doors (expect they have been especially well treated ones though where the owner was well aware of the issue and did everything to be super delicate).

HP-48SX
Most beautiful design, layout and colours. Physical logo (unlike other 48's) - BUT... that screen... one day I will work on a transplant from a Black screen model and have the perfect machine.

Voyagers
Surely in everyone's top four.

I would like to say HP-42S but never owned one!

[HP67]

HP-12C (gotta pay bills)
HP-48G/GX (favorite model of all time in terms of usability, but I said in another thread and I agree with @edryer that the S/SX is the most beautiful of 'em all but has the worst screen)
DM-16L (I write assembler for a living. And I'm kicking myself for decades now for not buying a 16C when they were still in production. I bought a TI-Programmer back then instead that self-destructed after a few years like all the TIs I have owned)
1st runner up- My HP-67 is in storage. It's a brick, it's wonderful, it's the pinnacle of calculator art. But RPL is so much better for writing programs than keystroke programmables.

[BusyCalc]

My personal list of the top three calculators is

1) HP45 at work. (Bought an used one, not very convinced, but now I love it very much and I use it almost everyday at work.)

2) HP65 at home. (Inherited from my father, who used it at work in the 70s/80s. Its condition was pretty good, except the famous gummy wheel. I restored it and since then it started my addiction to the classic HPs. I introduce a card once a month, only to hear that amazing sound and see the numbers dazzle. It's like having a Rolls Royce and going for a spin just for fun.)

3) HP80 at home. (Similar to the HP45, but I like to use it at home for the household matters.)