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HP Forum Archive 19

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HP-21 simulator for iPhone/iPod
Message #1 Posted by Steve Simpkin on 16 Sept 2009, 2:19 a.m.

I just noticed there is a HP-21 simulation available On the App store for the iPhone/iPod Touch. It is called GO-21 SciRPN ($.99). I wonder if a HP-25 is in the works? (I hope, I hope!)

      
Re: HP-21 simulator for iPhone/iPod
Message #2 Posted by Howard Owen on 16 Sept 2009, 3:52 p.m.,
in response to message #1 by Steve Simpkin

Yippee! Another calculator simulator. My iPod math/calculator page is getting crowded. :)

Regards,
Howard

      
Re: HP-21 simulator for iPhone/iPod
Message #3 Posted by Egan Ford on 16 Sept 2009, 4:24 p.m.,
in response to message #1 by Steve Simpkin

The ratio of different RPN options on the iPhone to non-RPN options vs. the same ratio in the real world is disproportionate.

Clearly the public wants their RPN. Unfortunately, there is no public data on RPN usage on the iPhone or RPN vs. non-RPN sales. It may just be that the type of people that like RPN are just more capable of creating iPhone apps. I.e. RPN people are smarter, more creative, and more motivated. Just my biased opinion. But, years of RPN use has got to affect the layout of the brain.

BTW, why GO-21? I know that on the keyboard GO is parallel to HP and alphabetically G before H and O before P, but I after H and Q after P for IQ21 would have been better.

Edited: 16 Sept 2009, 4:30 p.m.

            
Re: HP-21 simulator for iPhone/iPod
Message #4 Posted by Marnus Malan (RSA) on 16 Sept 2009, 4:54 p.m.,
in response to message #3 by Egan Ford

...maybe it is too close to IQ=21, which is not very inspiring for clever people who know what intelligence coefficient means (pardon the english spelling, i'm only IQ=22 :)

            
Re: HP-21 simulator for iPhone/iPod
Message #5 Posted by Pal G. on 16 Sept 2009, 5:23 p.m.,
in response to message #3 by Egan Ford

Quote:
RPN people are smarter, more creative, and more motivated.

Quote:
I after H and Q after P for IQ21 would have been better.

Egan, you proved your own point in the same post.

            
Re: HP-21 simulator for iPhone/iPod
Message #6 Posted by Byron Foster on 16 Sept 2009, 5:28 p.m.,
in response to message #3 by Egan Ford

Quote:
The ratio of different RPN options on the iPhone to non-RPN options vs. the same ratio in the real world is disproportionate.

The numbers are biased though because anyone who is satisfied with algebraic functionality has a good basic scientific calculator by default. Seems like all the calculators that started as algebraic in the app store have added RPN functionality to attract the RPNers that have to go to the app store to get their RPN fix.

Also, most of the RPN calcs are emulations (HP specifically). I'm speculating, but of the natively running calculators I bet more offer algebraic functionality rather then RPN.

Long live RPN!

            
Re: HP-21 simulator for iPhone/iPod
Message #7 Posted by Walter B on 16 Sept 2009, 6:24 p.m.,
in response to message #3 by Egan Ford

Quote:
I know that on the keyboard GO is parallel to HP and alphabetically G before H and O before P, but I after H and Q after P for IQ21 would have been better.
This story goes back to 2004 at least, with a stopover in 2006 (message #20).
            
Re: HP-21 simulator for iPhone/iPod
Message #8 Posted by Steve Lidie on 26 Sept 2009, 2:08 p.m.,
in response to message #3 by Egan Ford

Quote:
BTW, why GO-21? I know that on the keyboard GO is parallel to HP and alphabetically G before H and O before P, but I after H and Q after P for IQ21 would have been better.

IQ-21 was indeed on the list but as another noted it was to reminiscent of intelligence quotient, and 21 wasn't such a hot IQ. So, in memory of 2001: A Space Odyssey and the HAL 9000, whose initials preceded IBM, GO was chosen because it precedes HP.


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