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Author Topic: Do you still use stand-alone ("pocket") calculators?  (Read 24954 times)

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Offline Mortymore

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #100 on: January 21, 2020, 08:51:26 pm »
Results for Integral of ln(x^2)dx, from -5 to 99

We can add:

Casio FX-991ES PLUS -------- 2m56s -------------- 717.9281095
Casio FX-991W ---------------  1m28s -------------- 718
Casio FX-991EX ---------------- 35s ----------------- 717.9281095
Casio FX-570SPX II ----------- 35s ----------------- 717.9281095
HP 48G -------------------------- 53m40s ------------ 717.928325369
HP 39GS ------------------------ 20m28s ------------ 717.928325369 (EDIT)

Notes:
My FX-991ES shows ROM 018. Given we were recording the 991ES vs 991ES PLUS, that would explain the difference. On the path of evolution we have, 991ES: 3m15 > 991ES PLUS: 2m56s > 991EX: 35s
My HP48G is currently running (39 minutes and counting), with only FLAGs 02 and 03 set
« Last Edit: January 22, 2020, 04:51:19 pm by Mortymore »
 

Offline emece67

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #101 on: January 21, 2020, 10:49:36 pm »
.
« Last Edit: August 19, 2022, 02:44:53 pm by emece67 »
 

Offline iMo

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #102 on: January 24, 2020, 01:36:42 am »
I flashed my wp-34s 5-6y back. Is there any new binary somewhere available, plz?
PS: here are the latest binaries it seems.
And the repo with the sources.
« Last Edit: January 24, 2020, 02:20:14 am by imo »
Readers discretion is advised..
 
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Offline SiliconWizardTopic starter

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #103 on: January 24, 2020, 03:14:03 pm »
Integral of ln(x^2)dx, from -5 to 99

Success with this integral and the time it takes will completely depend on the method used.

If you have an HP prime, looks like the fastest would be to do this in CAS mode (which will give you the exact result almost instantly). Then you can copy it in home mode to get the approximate value.
The Prime uses Giac for its CAS AFAIK, which you can also use on computers. https://www-fourier.ujf-grenoble.fr/~parisse/giac.html
(There is a web version if you want to quickly test it: https://www-fourier.ujf-grenoble.fr/~parisse/xcasen.html )

integrate(ln(x^2),x,-5,99)
will give you:  5ln(25)+198ln(99)-208≈717.928109451

I tried with Maxima (both symbolic with integrate() and numeric integration with romberg(), and both failed.)
Also tried with Yacas ( http://www.yacas.org/ ), that I rarely use. Contrary to xcas/giac, it fails to solve the symbolic integration (with: Integrate(x,-5,99) Ln(x^2) ), but manages the numeric integration (with: NIntegrate(x,-5,99) Ln(x^2) ), it takes several seconds though, and is not very accurate (gives 717.92810937).
 
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Offline rsjsouza

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #104 on: January 26, 2020, 01:52:14 am »
I can't resist these posts. I love "physical calculators".

I like the mechanical memory of the calculators I have, as well as the extended precision of the HP35 and HP48 for those bit and base conversions.

A bit of my history on one of the previous threads:

I also replied to Ampera's old thread as well. My heart belongs to many models, and I am faithful to all of them! :D

My favourite is the HP48 - I got a 48SX in 1991 but about 20 years later it simply died. My wife then kindly gave me her 48GX which is still alive and well. At work I have a HP35S that does an excellent job for me (too afraid to leave the 48GX there and have it "borrowed" by someone that does not intend to return it).

I started with my dad's TI-59 (first thing I ever programmed) and I currently have a TI-66 just to flex my programming muscle memory. I love both, although the 59 still holds a special place in my heart.

My first actual calculator was a Casio fx-39 given to me by my dad in 1982. I still have it, along with my brother's and another one I got a few years ago in the hopes to get it working again. Unfortunately the Casios of the time had a very bad keyboard resistive mat that becomes brittle and ceases to work after a few years...

(edit) oh, and I forgot a HP11C that I got a few years back on the local market with the intention to turn a profit. Something about the Voyager calculators (TI66 as well) made me fall in love with it. Never sold it and currently don't plan to do it.
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Oh, the "whys" of the datasheets... The information is there not to be an axiomatic truth, but instead each speck of data must be slowly inhaled while carefully performing a deep search inside oneself to find the true metaphysical sense...
 

Offline aqarwaen

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #105 on: January 26, 2020, 05:55:54 pm »
got mine calculator from used electronic shop for 1$ only.only issue it had was old philips batteries had leaked and adter cleaning it work prefectly with new batties
 

Offline David Hess

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #106 on: January 27, 2020, 11:06:07 am »
Results for Integral of ln(x^2)dx, from -5 to 99

...

HP 48G -------------------------- 53m40s ------------ 717.928325369
HP 39GS ------------------------ 20m28s ------------ 717.928325369 (EDIT)

...

My HP48G is currently running (39 minutes and counting), with only FLAGs 02 and 03 set

The HP 50G produces the same result, as it should, and takes about as long, 10s of minutes anyway, despite having a 50MHz ARM processor because it runs an emulator.  I am not up to timing it accurately.

It is kind of sad actually considering that a processor designed and built 20+ years later draws more power to do less.
 

Offline Martin.M

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #107 on: January 27, 2020, 11:46:18 am »
stand allone, yes, pocket, no.
.. and full of Nixies  :)
 

Offline Mortymore

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #108 on: January 27, 2020, 11:58:02 am »
stand allone, yes, pocket, no.
.. and full of Nixies  :)

We shouldn't have to beg...

Photos please!  :D

Offline SiliconWizardTopic starter

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #109 on: January 27, 2020, 04:45:16 pm »
The HP 50G produces the same result, as it should, and takes about as long, 10s of minutes anyway, despite having a 50MHz ARM processor because it runs an emulator.  I am not up to timing it accurately.

It is kind of sad actually considering that a processor designed and built 20+ years later draws more power to do less.

The 50G was just emulating a Saturn processor to be able to leverage everything that had been written for the 48 series, so yeah it was not that much faster than the 48 in the end. It was faster for some tasks, and a bit slower for others. It was just a transition product IMO.

The later 39gII and Prime were using 100% rewritten and native code. Eons faster. The nostalgic wish HP had ported more of what was available in the 48/50 to the Prime. But those address the student market rather than professionals. I guess this is related to the point raised in this thread, that professionals increasingly use computer tools rather than true calculators, so the market has shrunk and doesn't interest the major players that much anymore. It's not just with HP; all other major manufacturers (TI, Casio, ...) mainly release calculators for students (not to say they are not usable for professionals, but they are clearly not tailored for them as the old HP ones were.)
 

Offline iMo

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #110 on: January 27, 2020, 04:56:54 pm »
There are also some limits on the calculator's functionality set by schools in most countries. So the vendors rather follow that rules.
Readers discretion is advised..
 

Offline rsjsouza

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #111 on: January 29, 2020, 12:49:47 am »
stand allone, yes, pocket, no.
.. and full of Nixies  :)
I love those as well, although I have only one: Casio AS-A.

https://sites.google.com/view/vbeletronico/casio-as-a-vbe-014
« Last Edit: May 21, 2023, 11:26:42 am by rsjsouza »
Vbe - vídeo blog eletrônico http://videos.vbeletronico.com

Oh, the "whys" of the datasheets... The information is there not to be an axiomatic truth, but instead each speck of data must be slowly inhaled while carefully performing a deep search inside oneself to find the true metaphysical sense...
 
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Offline worsthorse

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #112 on: January 29, 2020, 04:59:56 am »
My daily calculator is one of two HP45s. The keypad is so solid and the display is easy to see (one is at my testbench, the other on my desk). My HP15C is always handy, too, and gets thrown into the bag if I am going to a coffeeshop to work. I also have an HP48 that I like but don't use much.  I am pretty sure that my 11C and 12C are around here somewhere, too.  Banging out numbers on a calculator is way faster than using a keyboard-based tool, for me, anyway.

So yeah, I still use calculators. But then, I still use a slide rule once in a while just to stay in practice for the post-zompocalypse career.
specialization is for insects.
 

Offline blacksheeplogic

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #113 on: January 29, 2020, 05:58:07 am »
The 50G was just emulating a Saturn processor to be able to leverage everything that had been written for the 48 series, so yeah it was not that much faster than the 48 in the end. It was faster for some tasks, and a bit slower for others. It was just a transition product IMO.

The later 39gII and Prime were using 100% rewritten and native code. Eons faster.

The 50G was slow and I never really got comfortable with it. I liked the 35S but after the Prime came out I switched over to it. For a basic calculator especially when working in assembler the Sharp EL-501X is my go to. I've tried a few others like the Casio's but find I always go back to either a Sharp or HP. When traveling it's the Sharp EL-515 / El-506 / El-512, they small  and I've had these Sharps for several decades.



* A few more of mine * My wife puts my calculators away if she finds them out of the office, I know I have others but where....
« Last Edit: January 29, 2020, 06:01:32 am by blacksheeplogic »
 
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Offline Mortymore

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #114 on: January 29, 2020, 11:51:01 am »
* A few more of mine * My wife puts my calculators away if she finds them out of the office, I know I have others but where....

That's why you have so many calculators. Your wife hides them and you're always in need for another one.  ;D

Offline KL27x

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #115 on: January 29, 2020, 07:14:40 pm »
With so many different kinds of calculators, surely you end up preferring just one? I can't learn/rememberr how to use half the functions of one calculator. Then there's the adjusting to the various layouts/fonts/color schemes of the buttons.

If I collected calculators, I'd have 6 of the same one. :)

And for me, it'd be the one on the second column, second row. That fx-115MS. That's my workhorse. I still see it for sale, but the price is going up. Maybe I should buy a few.
« Last Edit: January 29, 2020, 07:27:49 pm by KL27x »
 

Offline Specmaster

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #116 on: January 30, 2020, 09:48:30 pm »
With so many different kinds of calculators, surely you end up preferring just one? I can't learn/rememberr how to use half the functions of one calculator. Then there's the adjusting to the various layouts/fonts/color schemes of the buttons.

If I collected calculators, I'd have 6 of the same one. :)

And for me, it'd be the one on the second column, second row. That fx-115MS. That's my workhorse. I still see it for sale, but the price is going up. Maybe I should buy a few.
You are so correct, I have many calculators that I have gained over the years, because it seemed that each one had a unique function / feature that I thought would be handy to have, and when the time comes to use it, I can't remember how to do it.
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Offline blacksheeplogic

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #117 on: January 31, 2020, 05:44:42 am »
With so many different kinds of calculators, surely you end up preferring just one? I can't learn/rememberr how to use half the functions of one calculator. Then there's the adjusting to the various layouts/fonts/color schemes of the buttons.

The HP prime is my primary calculator.
 

Offline george.b

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #118 on: January 31, 2020, 02:37:22 pm »
It is kind of sad actually considering that a processor designed and built 20+ years later draws more power to do less.

And this is why I dropped my 50g in favor of a 48G+. I couldn't keep up with battery usage. On the other hand, my 48G+ has been on the same set of non-alkaline batteries for almost a year now.
 

Offline rsjsouza

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #119 on: January 31, 2020, 05:14:21 pm »
Integral of ln(x^2)dx, from -5 to 99 (EDIT: as can be seen in the photo, on Casio FX-991ES display)

Casio FX-991ES -------- 3m15s -------------- 717.9281095
HP 39G II ---------------- 7s ------------------- 717.928109451
HP 49G+ ----------------- 25m 38s ----------- 717.928325369
HP 40GS ----------------- 20m48s ------------ 717.928325369
HP 49G ------------------ 54m54s ------------- 717.928325369
HP 48G -------------- was not able to solve
Microsoft Mathematics on a i5 ---- 0s ------ 717.9281094509898

My HP 48G+ finished it, took a long time (sorry, didn't measure it), but it arrived to a result of 717.928325369.
My HP35S failed to compute due to the discontinuity, but the 48G emulated on my Galaxy S8 (Droid48) finished in about 45s with the same result of 717.928325369.  :-+
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Oh, the "whys" of the datasheets... The information is there not to be an axiomatic truth, but instead each speck of data must be slowly inhaled while carefully performing a deep search inside oneself to find the true metaphysical sense...
 
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Offline iMo

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #120 on: January 31, 2020, 05:21:54 pm »
Wolfram Alpha returns pretty fast too :)
Code: [Select]
integral_(-5)^99 log(x x) dx = -208 + 5 log(25) + 99 log(9801)≈717.9281094509898092627895355906776568003602315201025607993418414430431075264665977171140098716913919681495082661877941703815724191636985154135955803770983087545993504943645229842801255561021282129275828309
Readers discretion is advised..
 

Offline DrG

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #121 on: January 31, 2020, 05:54:42 pm »
Been using this one for many years. Quite handy, no battery issues and has helped me avoid a few facepalm moments.



- Invest in science - it pays big dividends. -
 
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Offline Shock

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #122 on: January 31, 2020, 06:51:05 pm »
These are mine, not a collection more a functional representation of calculators I like to use. Two RPN calculators, two for their EE functionality and one for VPAM. The rest are just models I own or used in the past, most of these were cheap.

HP12C - RPN programmable finance
HP12C - Spare donor for the HP15C
HP15C - RPN programmable scientific
TI 89 Titanium - Graphing and has EE software and an emulator app
TI 84 Plus - Came free with the Titanium
Casio FX-100AU PLUS - Modern scientific with VPAM
Casio FX-61F - EE functions built in scientific
Casio FX-82 - Buried in a box somewhere
Casio FX-100 - Might be in a box not see it for a while
Casio desk calculator - Work acquired non scientific
Soldering/Rework: Pace ADS200, Pace MBT350
Multimeters: Fluke 189, 87V, 117, 112   >>> WANTED STUFF <<<
Oszilloskopen: Lecroy 9314, Phillips PM3065, Tektronix 2215a, 314
 

Offline Zero999

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #123 on: January 31, 2020, 09:11:25 pm »
Lots of hate for the Windows calculator here. I use it very regularly.
It's important to note that I'm on about the Windows 10 calculator. I think Windows 7 and earlier had a very basic calc.
I have a keyboard shortcut to bring up the calculator that I use a lot. With a numpad, using the calculator for basic operations is just like a physical one. There are lots of shortcuts that are unfortunately hidden from the user, but you can find ones online. I most often use alt+2 and alt+3 to switch between programmer and scientific modes. Copy and paste is immensely useful. Built-in unit conversions are a nice touch.
I prefer the Windows 7 calculator to the Windows 10 one, because it's possible to go back and edit long expressions, which they decided to remove from the Windows 10 version and is a deal breaker for me. When I'm using Windows 10, I install the old Windows 7 calculator patched, to run on Windows 10.

My favourite calculator program is MATE Calculator, but I think it has a Windows version.
 

Offline David Hess

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Re: Do you still use stand-alone ("pocket") calculators?
« Reply #124 on: February 01, 2020, 03:27:00 am »
It is kind of sad actually considering that a processor designed and built 20+ years later draws more power to do less.

And this is why I dropped my 50g in favor of a 48G+. I couldn't keep up with battery usage. On the other hand, my 48G+ has been on the same set of non-alkaline batteries for almost a year now.

I have two sets of AAA Enloops for my 50g and have not had a problem but I do not use it as much as I did my 48g.  The original case wore out so now I have a hard case for it.  My only complaint is the massively higher latency compared to the 48g.
 


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