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Small RPN and HP article from the Babbage blog on the Economist.com website

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

For Polish sausages, I prefer infix

xkcd

(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...

So…which HP is the man in the picture using?

(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.

That's obviously an HP-35.

(04-04-2014 07:58 AM)Thomas Klemm Wrote: [ -> ]
xkcd

No sauerkraut? That's just wrong!

"In RPN, the expression is read unambiguously as 234*+123*+/."

This doesn't make any sense to me... Are blank spaces any expensive?

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

(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

(04-04-2014 07:58 AM)Thomas Klemm Wrote: [ -> ]
xkcd

LOL

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/

Methinks the picture is an HP 35

(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

http://h20331.www2.hp.com/Hpsub/images/35_eng_gray.jpg

Thanks; I did think it looked a lot like an HP publicity photo.

(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 :-)

How many days of live has that RPN left?

(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/