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RPN article on Economist web site
04-04-2014, 07:18 AM
Post: #1
RPN article on Economist web site
Small RPN and HP article from the Babbage blog on the Economist.com website

http://www.economist.com/blogs/babbage/2...e-engine-1
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04-04-2014, 07:32 AM
Post: #2
RE: RPN article on Economist web site
For Polish sausages, I prefer infix Wink
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04-04-2014, 07:58 AM
Post: #3
RE: RPN article on Economist web site
[Image: rps.png]
xkcd
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04-04-2014, 08:08 AM
Post: #4
RE: RPN article on Economist web site
(04-04-2014 07:18 AM)Roger Ward Wrote:  Small RPN and HP article from the Babbage blog on the Economist.com website

http://www.economist.com/blogs/babbage/2...e-engine-1

Thank you.

Quote:The sausage conundrum is something only mathematicians, programmers, engineers and financial planners of a certain age could love
[emphasis added]

Alas...

Greetings,
    Massimo

-+×÷ ↔ left is right and right is wrong
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04-04-2014, 08:10 AM
Post: #5
RE: RPN article on Economist web site
So…which HP is the man in the picture using?
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04-04-2014, 08:32 AM
Post: #6
RE: RPN article on Economist web site
(04-04-2014 08:10 AM)[kby] Wrote:  So…which HP is the man in the picture using?

The picture is pretty low res but I think it may be a HP-65.
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04-04-2014, 08:50 AM
Post: #7
RE: RPN article on Economist web site
That's obviously an HP-35. Smile
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04-04-2014, 01:12 PM
Post: #8
RE: RPN article on Economist web site
(04-04-2014 07:58 AM)Thomas Klemm Wrote:  [Image: rps.png]
xkcd

No sauerkraut? That's just wrong!

It ain't OVER 'till it's 2 PICK
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04-04-2014, 03:30 PM
Post: #9
RE: RPN article on Economist web site
"In RPN, the expression is read unambiguously as 234*+123*+/."

This doesn't make any sense to me... Are blank spaces any expensive?
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04-04-2014, 05:07 PM
Post: #10
RE: RPN article on Economist web site
It's not a -65…lower right key on a -65 is R/S and it's black. I thought maybe a -67 (of course the guy's thumb covers where the card slot would be) but it doesn't have a light colored upper right corner key (neither does the -65). The only ones that have a light colored upper right corner key are a -35 and a -45, as far as I can tell. I would not have guessed them initially since I'd expect the case to look darker (they are both black), but I'm having to lean toward the -35, as it also looks like there are key legends above he function keys.-kby
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04-04-2014, 07:09 PM
Post: #11
RE: RPN article on Economist web site
(04-04-2014 07:18 AM)Roger Ward Wrote:  Small RPN and HP article from the Babbage blog on the Economist.com website

http://www.economist.com/blogs/babbage/2...e-engine-1

Smile

(04-04-2014 07:58 AM)Thomas Klemm Wrote:  [Image: rps.png]
xkcd

LOL
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04-04-2014, 07:34 PM
Post: #12
RE: RPN article on Economist web site
Thanx for the story. Great read. Perhaps some of you remember this one:

Dented and duct-taped, old HP calculators still beloved by planners

http://touch.latimes.com/#section/-1/art...-77137179/
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04-04-2014, 09:18 PM
Post: #13
RE: RPN article on Economist web site
Methinks the picture is an HP 35
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04-04-2014, 10:02 PM (This post was last modified: 04-04-2014 10:04 PM by Gerson W. Barbosa.)
Post: #14
RE: RPN article on Economist web site
(04-04-2014 09:18 PM)Gene Wrote:  Methinks the picture is an HP 35
HP-35 Version B, and the display shows 11.9547 -99 Smile

http://h20331.www2.hp.com/Hpsub/images/35_eng_gray.jpg
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04-04-2014, 10:11 PM
Post: #15
RE: RPN article on Economist web site
Thanks; I did think it looked a lot like an HP publicity photo.
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04-04-2014, 10:21 PM (This post was last modified: 04-04-2014 10:21 PM by Gerson W. Barbosa.)
Post: #16
RE: RPN article on Economist web site
(04-04-2014 10:11 PM)[kby] Wrote:  Thanks; I did think it looked a lot like an HP publicity photo.
You're welcome!

https://www.google.com/search?q=HP-35&es...l&imgdii=_

Scroll down to the next row then click on the blond lady holding a 35 :-)
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04-10-2014, 06:39 PM
Post: #17
RE: RPN article on Economist web site
How many days of live has that RPN left?
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04-10-2014, 06:48 PM (This post was last modified: 04-10-2014 06:48 PM by Matt Agajanian.)
Post: #18
RE: RPN article on Economist web site
(04-04-2014 10:21 PM)Gerson W. Barbosa Wrote:  
(04-04-2014 10:11 PM)[kby] Wrote:  Thanks; I did think it looked a lot like an HP publicity photo.
You're welcome!

https://www.google.com/search?q=HP-35&es...l&imgdii=_

Scroll down to the next row then click on the blond lady holding a 35 :-)


If, after you click on that pic, you scroll through the other pics, you'll come across this:

How the HP35 Calculator Killed the Slide Rule and Made an IT Giant

http://mobile.eweek.com/c/a/Desktops-and...nt-773270/
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