Australian-Coins Forum

Non Numismatic Discussion => Chin Wag => Topic started by: JeffH on September 03, 2013, 09:28:46 AM

Poll
Question: Are you an Algebraic or a Reverse polish person?
Option 1:  . addslashes($options[$i]) . " votes: 5
Option 2:  . addslashes($options[$i]) . " votes: 2
Title: Algebraic or Reverse Polish?
Post by: JeffH on September 03, 2013, 09:28:46 AM
If you don't understand the question best you quietly leave this thread now!
Title: RE: Algebraic or Reverse Polish?
Post by: markn on September 03, 2013, 11:13:29 AM
I never got reverse Polish but I can remember a couple of people back in high school who were whizzes on RP calculators.
Title: RE: Algebraic or Reverse Polish?
Post by: triplewitch on September 03, 2013, 02:26:02 PM
I've used one for years.-John
Title: RE: Algebraic or Reverse Polish?
Post by: robbiegal on September 03, 2013, 04:57:02 PM
ok
i'm leaving

:sportbike:

quietly
Title: RE: Algebraic or Reverse Polish?
Post by: Robster on September 03, 2013, 05:53:52 PM
Any chance you can swing by and pick me up.!!!
Title: RE: Algebraic or Reverse Polish?
Post by: Unicorn on September 03, 2013, 06:37:11 PM
Lol Robster and RG ......

Robster, RG should be there in around 4 6 + hours
Title: RE: Algebraic or Reverse Polish?
Post by: robbiegal on September 03, 2013, 06:44:13 PM
:tease:

true
Title: RE: Algebraic or Reverse Polish?
Post by: Mister T on September 03, 2013, 07:37:51 PM
I thought algebraic was called infix.
Anyway, Reverse Polish Notation is great for first year university programming assignments.
Title: RE: Algebraic or Reverse Polish?
Post by: Fulvio on September 03, 2013, 08:30:26 PM
Quote from: 'Mister T' pid='26888' dateline='1378202871'Reverse Polish Notation is great for first year university programming assignments.

That's because RPN is the way computers work. You load your variables and only then can you perform an operation on them. Which is all fine and wonderful when dealing with a program.

But when I pick up a calculator, I don't want to think like I do when I'm programming. I just want a quick and dirty answer, and I want it now.

So I'll happily leave RPN to the engineers and wannabe-programmers I reckon. :)

Mind you, in the interests of full disclosure, I have to admit to building a spreadsheet just to add up a bunch of numbers on more than one occasion... :dodgy:
Title: RE: Algebraic or Reverse Polish?
Post by: Goldseeker on September 03, 2013, 11:06:55 PM
What in the devil's name are you lot talking about.

I'm catching the first bus outa here.   Do I have to hail the driver or what?
Title: RE: Algebraic or Reverse Polish?
Post by: triplewitch on September 03, 2013, 11:43:01 PM
Tried and true for over 30 years (and it looks it!).  I wasn't a programmer wannabe.  I did program a computer for over 40 years.-John
Title: RE: Algebraic or Reverse Polish?
Post by: Fulvio on September 04, 2013, 02:20:05 AM
Quote from: 'Goldseeker' pid='26897' dateline='1378215415'What in the devil's name are you lot talking about.

Goldy, Reverse Polish Notation is when you write notes backwards using a polish sausage. Yeah, I know its a bit high-tech, but you can learn all about it on wikipedia. :angel:

(http://upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Kielbasas.jpg/300px-Kielbasas.jpg)

Quote from: 'triplewitch' pid='26899' dateline='1378217581'Tried and true for over 30 years (and it looks it!).  I wasn't a programmer wannabe.  I did program a computer for over 40 years.-John

I had a 41C, which taught me, among other things, that its a very bad idea to leave a rechargeable device plugged in 24/7. I ended up with an UNchargeable desk calculator with a power cord embedded in the bottom. :(
Title: RE: Algebraic or Reverse Polish?
Post by: markn on September 04, 2013, 09:09:00 AM
Quote from: 'Fulvio' pid='26890' dateline='1378206026'So I'll happily leave RPN to the engineers

Perhaps I mixed in the wrong circles but when I was actually using my engineering degree (1994 through 2007) I can recall exactly no-one using an RP calculator.  Before this thread was posted I doubt I had ever thought about RP since I left high school.
Title: RE: Algebraic or Reverse Polish?
Post by: Robster on September 04, 2013, 10:49:01 AM
All I have now is a yearning for some sauerkraut to go with the wurst.!! :-/
Title: RE: Algebraic or Reverse Polish?
Post by: JeffH on September 04, 2013, 11:03:45 AM
I still have my slide rule from when I did my engineering degree!
But, boy did we latch onto HP calculators when they became affordable. Some other companies dabbled in RPN models but that didn't last long -not a big enough market.
And, HP later started making dual Algebraic and RPN units (had an "=" key)...sacrilege.

I currently own (and regularly use) a 48G+ and a 33S. Now why did HP change key layouts between models? Have to look to find the right key sometimes because locations vary relative to the number pad.
And, these later models have too many features that I never use. I would happily return to an 11C if I could find one that the keyswitches haven't given up the ghost.
Title: RE: Algebraic or Reverse Polish?
Post by: triplewitch on September 04, 2013, 11:57:24 AM
The 12C still comes out every couple of years.  Every one has been lower in price than the previous one so far.  The outward appearance is the same, so the internals must have been updated somehow. -John
Title: RE: Algebraic or Reverse Polish?
Post by: duggee27 on September 04, 2013, 11:59:32 AM
ah the old slide rule trick ...

what about using chambers 7 figure log tables !!! to do survey calcs
Title: RE: Algebraic or Reverse Polish?
Post by: Fulvio on September 04, 2013, 04:55:58 PM
Quote from: 'JeffH' pid='26920' dateline='1378258425'I still have my slide rule from when I did my engineering degree!

Ah, memories.. I still have mine around someplace, probably next to my dial caliper. Which is likely in a sub-basement in the bottom of a locked filing cabinet stuck in a disused lavatory with a sign on the door saying 'Beware of the Leopard' :dodgy:

Quote from: 'JeffH' pid='26920' dateline='1378258425'Now why did HP change key layouts between models?

Probably had something to do with being taken over, and somewhat losing the plot. HP used to be a truly awesome outfit back in the day... I remember needing a pair of sunnies when poking around inside their minis, because the entire boards were gold plated (not just the edge connectors). Ah, memories.... :angel:

Oh, and log tables.. *SHUDDER* .. brings back lots of bad memories of certain teachers. :(
Title: RE: Algebraic or Reverse Polish?
Post by: Mister T on September 04, 2013, 07:44:45 PM
Quote from: 'Fulvio' pid='26904' dateline='1378227005'Goldy, Reverse Polish Notation is when you write notes backwards using a polish sausage. Yeah, I know its a bit high-tech, but you can learn all about it on wikipedia.

(http://imgs.xkcd.com/comics/rps.png)
Title: RE: Algebraic or Reverse Polish?
Post by: r9453 on September 04, 2013, 09:01:03 PM
A lot of civil engineers I worked with (from 1983 to 2010) used HP calculators. I always used machines like the Sharp PC1300 and later on the HP 200LX. After I retired I bought a HP 48GLX graphing calculator which I was able to drive.
Title: RE: Algebraic or Reverse Polish?
Post by: purplepennyhunter on September 04, 2013, 09:01:35 PM
Quote from: 'Robster' pid='26918' dateline='1378257541'All I have now is a yearning for some sauerkraut to go with the wurst.!! :-/

You need to find that Weinerbago that's in town Robster.
Title: RE: Algebraic or Reverse Polish?
Post by: Goldseeker on September 04, 2013, 09:16:36 PM
? ? ? ? ?
Title: RE: Algebraic or Reverse Polish?
Post by: Fulvio on September 05, 2013, 03:58:44 AM
Quote from: 'Goldseeker' pid='26951' dateline='1378295196'? ? ? ? ?

Poor Goldy... don't worry mate, we'll train ya... we'll have ya up to speed on an abacus in no time flat. :)
Title: RE: Algebraic or Reverse Polish?
Post by: Robster on September 05, 2013, 07:53:57 AM
Nice to have a post where everyone can be involved regardless of the subject.!!:blink:
Title: RE: Algebraic or Reverse Polish?
Post by: Goldseeker on September 05, 2013, 03:10:07 PM
UH?   Me no understandie...........
Title: RE: Algebraic or Reverse Polish?
Post by: trout on September 05, 2013, 03:11:17 PM
Quote from: 'Goldseeker' pid='26994' dateline='1378359607'UH?   Me no understandie...........

Me neiver Mate ?????
Title: RE: Algebraic or Reverse Polish?
Post by: Nevol on September 05, 2013, 09:37:52 PM
It's all totally underconstumbable if you ask me, but please don't ask me. :whistle2:
Title: RE: Algebraic or Reverse Polish?
Post by: triplewitch on September 05, 2013, 09:46:37 PM
It's one of those things that you either 'get' or you don't.-John
Title: RE: Algebraic or Reverse Polish?
Post by: Goldseeker on September 05, 2013, 10:00:47 PM
Me no get full stop.
Title: RE: Algebraic or Reverse Polish?
Post by: r9453 on September 05, 2013, 10:14:27 PM
Quote from: 'Nevol' pid='27024' dateline='1378382872'It's all totally underconstumbable if you ask me, but please don't ask me. :whistle2:

Nevol, are you claiming 'plausible deniability'?
Title: RE: Algebraic or Reverse Polish?
Post by: Fulvio on September 06, 2013, 12:51:52 AM
Quote from: 'Goldseeker' pid='27034' dateline='1378384247'Me no get full stop.

A full stop is that thing you put after the word stop.

. <-- This thing, see?

Now you get full stop? :)
Title: RE: Algebraic or Reverse Polish?
Post by: JeffH on September 06, 2013, 04:01:14 AM
If you don't get it then don't view the following link. It will just confuse you.
If you get it then you won't need to check the link.
Reverse Polish notation (http://en.wikipedia.org/wiki/Reverse_Polish_notation)

And not a sausage in sight.

Today's fact. If your calculator has an "=" key it is algebraic. If it has an "ENTER" key then it is Reverse polish Notation. If it has both -they do exist- and you know how to use it then you need help; you almost certainly are suffering from a multiple personality syndrome.
Title: RE: Algebraic or Reverse Polish?
Post by: Nevol on September 06, 2013, 06:07:51 AM
Quote from: 'r9453' pid='27037' dateline='1378385067'
Quote from: 'Nevol' pid='27024' dateline='1378382872'It's all totally underconstumbable if you ask me, but please don't ask me. :whistle2:
Nevol, are you claiming 'plausible deniability'?
Yeah, something like that.
QuoteIf your calculator has an "=" key it is algebraic. If it has an "ENTER" key then it is Reverse polish Notation.
My default  calculator is Excel, so I can see all the entries I make if the answer is not what I expect it to be. :blum3:
Title: RE: Algebraic or Reverse Polish?
Post by: JeffH on September 06, 2013, 07:09:41 AM
QuoteMy default calculator is Excel, so I can see all the entries I make if the answer is not what I expect it to be.
Ah! You can come out of the closet now Nancy -that is effectively Reverse Polish. :taunt:
Title: RE: Algebraic or Reverse Polish?
Post by: purplepennyhunter on September 06, 2013, 08:09:01 AM
Quote from: 'JeffH' pid='27056' dateline='1378405874'And not a sausage in sight.

(https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-prn2/1208550_593410864050831_1505153125_n.jpg)
Title: RE: Algebraic or Reverse Polish?
Post by: Robster on September 06, 2013, 08:16:08 AM
It all adds up to "Yummy". :angel:
Title: RE: Algebraic or Reverse Polish?
Post by: Fulvio on September 06, 2013, 08:29:17 AM
Quote from: 'JeffH' pid='27056' dateline='1378405874'If you get it then you won't need to check the link.

Yeah you do, if only for the awesome hat. *WANT*!
Title: RE: Algebraic or Reverse Polish?
Post by: JeffH on September 06, 2013, 08:33:33 AM
Yes,
I thought that hat was fantastic; a real collectors' item. Might have to keep an eye out on eBay for one.
Title: RE: Algebraic or Reverse Polish?
Post by: Fulvio on September 06, 2013, 08:34:45 AM
Quote from: 'JeffH' pid='27073' dateline='1378422213'Might have to keep an eye out on eBay for one.

Or two. :angel:
Title: RE: Algebraic or Reverse Polish?
Post by: JeffH on September 06, 2013, 08:40:41 AM
If I find a suitable candidate hat I might dig out my old screen print outfit and recreate it.
Title: RE: Algebraic or Reverse Polish?
Post by: Unicorn on September 06, 2013, 09:02:48 AM
QuoteYeah you do, if only for the awesome hat

Is that a coin carefully sewn into the rim of that cap?
(Looks like it's been cleaned, you can see the reverse polished).

Sorry ....... it's Friday.

PPH: Love the Wienerbago stall ...... and next weeks special!!!!
Title: RE: Algebraic or Reverse Polish?
Post by: Fulvio on September 06, 2013, 09:31:06 AM
Quote from: 'JeffH' pid='27077' dateline='1378422641'If I find a suitable candidate hat I might dig out my old screen print outfit and recreate it.

Its a railroad engineer's (US train driver) hat. They usually come in blue and white stripes or grey checks.
Title: RE: Algebraic or Reverse Polish?
Post by: markn on September 06, 2013, 09:39:40 AM
http://www.zazzle.com.au/reverse_polish_notation_red_heart_hat-148483904667201608

http://www.cafepress.co.uk/mf/78558805/i-love-reverse-polish-notation_tshirt

:)
Title: RE: Algebraic or Reverse Polish?
Post by: Fulvio on September 06, 2013, 09:52:26 AM
Baseball caps. Quite different.

(http://ecx.images-amazon.com/images/I/A1XFZh%2BoTpL._SX522_.jpg)
Title: RE: Algebraic or Reverse Polish?
Post by: Robster on September 06, 2013, 10:13:28 AM
Quote from: 'Unicorn' pid='27080' dateline='1378423968'
QuoteYeah you do, if only for the awesome hat

Is that a coin carefully sewn into the rim of that cap?
(Looks like it's been cleaned, you can see the reverse polished).

Sorry ....... it's Friday.


PPH: Love the Wienerbago stall ...... and next weeks special!!!!

Probably give you "Gas'. :angel:
Title: RE: Algebraic or Reverse Polish?
Post by: Unicorn on September 06, 2013, 10:15:04 AM
Touche Robster!!!!
Title: RE: Algebraic or Reverse Polish?
Post by: Fulvio on September 06, 2013, 10:23:18 AM
Quote from: 'Robster' pid='27088' dateline='1378428208'Probably give you "Gas'. :angel:

NO SMOKING
CAUTION:
Do not consume near naked flame.

Best not to burp or pass wind either. :angel:
Title: RE: Algebraic or Reverse Polish?
Post by: Unicorn on September 06, 2013, 10:28:16 AM
Two Hindenburg-class airships, special forces, lettuce, cheese, static, hydrogen – on a sulphur fused bomb.
Title: RE: Algebraic or Reverse Polish?
Post by: Robster on September 06, 2013, 10:47:57 AM
Quote from: 'Unicorn' pid='27095' dateline='1378429096'Two Hindenburg-class airships, special forces, lettuce, cheese, static, hydrogen – on a sulphur fused bomb.

Memorable moments in "Hot Dog History". :shok:
Title: RE: Algebraic or Reverse Polish?
Post by: Unicorn on September 13, 2013, 05:50:46 PM
Quote from: 'purplepennyhunter' pid='27066' dateline='1378420741'
Quote from: 'JeffH' pid='27056' dateline='1378405874'And not a sausage in sight.

(https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-prn2/1208550_593410864050831_1505153125_n.jpg)

News just to hand .........

(http://www.australian-coins.net/gallery/albums/userpics/11067/wurst.jpg)
Title: RE: Algebraic or Reverse Polish?
Post by: Robster on September 13, 2013, 06:30:28 PM
A clear case of a Sour Kraut.!! :dance2:
Title: RE: Algebraic or Reverse Polish?
Post by: trout on September 13, 2013, 07:59:55 PM
Quote from: 'Robster' pid='28084' dateline='1379062828'A clear case of a Sour Kraut.!! :dance2:

Call me a dumb bunny or whatever , I still have absolutely NO idea of what you blokes are talking about :angel:
Title: RE: Algebraic or Reverse Polish?
Post by: r9453 on September 13, 2013, 08:36:26 PM
Quote from: 'trout' pid='28090' dateline='1379068195'Call me a dumb bunny or whatever , I still have absolutely NO idea of what you blokes are talking about :angel:
You're no :angel: trouble - I went to type troutski but the ipad suggested trouble so why argue?
It's a bit like the difference between beta & VHS only it's more serious than that.
Title: RE: Algebraic or Reverse Polish?
Post by: runway on September 13, 2013, 10:12:57 PM
No idea actually I could google it but keep it going