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HP-21 simulator for iPhone/iPod - Printable Version

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HP-21 simulator for iPhone/iPod - Steve Simpkin - 09-16-2009

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 - Howard Owen - 09-16-2009

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

Regards,
Howard


Re: HP-21 simulator for iPhone/iPod - Egan Ford - 09-16-2009

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 - Marnus Malan (RSA) - 09-16-2009

...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 - Pal G. - 09-16-2009

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 - Byron Foster - 09-16-2009

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 - Walter B - 09-16-2009

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 - Steve Lidie - 09-26-2009

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.