Favorite calculator

HP-28

C with

it

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=A0 =A0 ...Jim Thompson

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I don't know if it's age, or what, but I couldn't pass up the 'tongue in cheek" name calling. Must be taking lessons from Phil.Albeit, a MUCH milder form. I mean, come on. Who can take offense at that name?! I just kept envisioning the scene between Leslie Nielson and Robert Goulet. "...we're all adults here..."

Regarding RPN, I did some side by side comparisons with a highly skilled analog engineer who absolutely swore that the RPN was the best way to go. We did a somewhat simple, parallel impedance calculation. I was done first, with the 'right' answer. I attribute being faster AND getting the right answer to not having to worry about all that entry stuff. Plus, he USED his calculator everyday, I had been away from mine for a long time. You should have seen the flurry of activity when he tried to do complex impedance calculations, while muttering, "No, that doesn't look right, wait, I'll do it again, etc etc." And you could see his eyes glaze over as he started concentrating on the 'tool' rather than the 'problem'. Yep! regular entry calculators, the only way to go.

Reply to
Robert Macy
Loading thread data ...

me

That bug's description was from memory. I tried numbers c'lsoe' to the bug value, like 1.99999999 and 2.0000001 both worked to get the 'correct' answers. the 'buggy' answer was off like 1-2% !!! Major bummer.

Reply to
Robert Macy

Thanks for the URL.

Was it just me, or are these values a bit off?

"...the price was around $5,000 ($33,000 in today dollars"

That should have been more like $100,000 in today's dollars based on the rent and annual salaries floating around then!

Reply to
Robert Macy

Isn't it odd that it has a-f keys at a time when octal was common and hex was not.

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Reply to
Tom Del Rosso

HP-28

with

[snip]

Incwww.highlandtechnology.com jlarkin at highlandtechnology dot com

[snip]

I was also 'tongue in cheek'... sort of... we've lost this group to a prima donna. Maybe we should start a moderated group?

I really rarely use a calculator... who needs them for anything complex? I can solve a transcendental equation in PSpice about as fast as I can type it in.

Though, on occasion, I end up with an Algebraic expression with parentheses that I just slap into the old TI to numerically evaluate... mostly for a sanity check of my Algebra. ...Jim Thompson

--
| James E.Thompson, CTO                            |    mens     |
| Analog Innovations, Inc.                         |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| Phoenix, Arizona  85048    Skype: Contacts Only  |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |
             
I love to cook with wine.     Sometimes I even put it in the food.
Reply to
Jim Thompson

I've done miles of fortran years ago in a video acquisition system for measuring items down to a 1/10 " up to 100 Feet away.

It was a Hybrid version of the language running on a Z80 box using a very expensive camera.

So I have some experience in doing polish reverse notation.

I don't think I would suggest it as a first language though with today's standards.

Jamie

Reply to
Jamie

I will be getting a new phone possibly tomorrow so I most likely will end up with an Android OS. I wasn't really thinking of using my phone as a calculator though.

I do like the ability to turning on a device that is and does exactly what it was designed to do, not shuffle through a mile of menus and icons to get what I want.

Jamie

Reply to
Jamie

The keyboard sucks. I use the 11C emulator in meetings, or whatnot but the

35S works better at my desk. At home I either use Excalibur or XCalc. I'd like one with a better binary mode than any of the above, though.

Put the icon on the "desk top" (or whatever Android calls it). Mine is one page left but it's there.

Reply to
krw

Do you remember the 9100A ad campaign touting the reliability of it? Seems a real 9100 unit was out in the ocean, or at least under water, for a year, or at least lonag enough to have a small crab start living in its innards. The before photo shows the small resident crab and the after photo shows a cleaned up unit being used by its happy owner - now that is reliability. That owner is still working today!

Reply to
Robert Macy

I have two calculators on my droid:

RealCalc: nice, emulates HP (can switch between RPN and traditional)

UNITS: bees knees, knows and converts between all the units, so you can do (1 kg + 1 lb ) 55 mph and ask for the result in g m/s. The interface is less polished, but I use it all the time.

Reply to
Przemek Klosowski

Incwww.highlandtechnology.com jlarkin at highlandtechnology dot com

I've always been a big RPN fan, but since my last HP41CX died a couple of years back, I just wrote a three line script to use the front end program to my EM simulator.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510
845-480-2058

hobbs at electrooptical dot net
http://electrooptical.net
Reply to
Phil Hobbs

Which one? Three are three models. The weak spot of the Razr (I have the

16G+16G model) is the battery. It's small and non-replaceable. The new Razr has a bigger battery, which I would prefer but wasn't out when I got mine. I jumped in January when they had the double GB sale.

Like I said, I use the HP11C emulator. No learning needed. ;-)

Reply to
krw

The Razr Droid Maxx is the highly rated one, hope Jamie got that one.

Cheers

Reply to
Martin Riddle

That's it. I got mine before the Maxx came out (and paid the same for it). Since the latest update (and I think Easy Battery Saver helped) it's been much better on the battery.

Reply to
krw

I just got back from the phone store and got a Droid Razor. The wife wanted to change the cell plan so I took the opportunity to update my phone so that I can have a internet hot spot option when needed and lately, I've needed for a short times to get some files.

I will first need to get used to this thing as it is a little different from my LG, then I'll play around with some programmable calculator apps.

Jamie

Reply to
Jamie

I think that's the low-end model. The midrange has 16G+16G card. The difference is just the external SD card. It was thrown in when I bought mine, then the three models (16G+0G, 16G+16G, and Maxx) were separated, with a $50 difference between each one.

The extra is the external SD card. I think.

Reply to
krw

Not sure about this one, it has the 16G storage and 1G or ram with a

1700 maH battery.. I was going to get the 3400 maH unit but no stock.

I am not a heavy user of a phone so it's no big deal but I did get the double GB offer though.

Jamie

Reply to
Jamie

Nope, didn't sorry! :) no stock.

Jamie

Reply to
Jamie

To their credit they allowed copying of manuals for all their obselete test equipment, AIUI. Different department perhaps.

[...]
--

John Devereux
Reply to
John Devereux

DYM Forth?

I think fortran is algebraic.

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Reply to
Jasen Betts

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