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How about a pocket / hand held RPL calc?
Message #1 Posted by Michael de Estrada on 27 Jan 2011, 1:28 p.m.

Lately we've been lamenting the lack of innovation at HP and the demise of some great calcs like the HP-42s. I've been mulling this over and thought that the one thing that would would really get my interest would be an RPL programmable calculator like my HP-48SX and HP-50g with its full alpha variables and unlimited stack, but with the hand held / pocketeable size and convenience of an HP-42s. It would have an SD card slot to provide portability as well as added memory, but could dispense with the IRD and USB ports. It would have a color dot matrix 4 line display and customizable hot keys / menu line. Oh, and it would be strictly RPN to simplify key assignments and menus. It would spare no expense to provide the best possible key button action, which is one of the traditional hallmarks of this brand. Finally, it would provide comprehensive documentation in spiral bound printed manuals, written by literate technical writers.

Yes, I know, I shouldn't drink so much.

Michael

      
Re: How about a pocket / hand held RPL calc?
Message #2 Posted by Walter B on 27 Jan 2011, 2:31 p.m.,
in response to message #1 by Michael de Estrada

You confuse me a bit. Do you want it featuring RPL or RPN? I.e. repelling or convenient? Reading your text, I can't decide. But now you're sober - so please clarify d;-)

Edited: 27 Jan 2011, 2:33 p.m.

            
Re: How about a pocket / hand held RPL calc?
Message #3 Posted by Michael de Estrada on 27 Jan 2011, 3:54 p.m.,
in response to message #2 by Walter B

I want my cake and eat it too, which is easy because one can have both RPN and RPL, such as in the case of the HP 48SX. RPL just extends the capabilities of RPN.

RPL

RPN

                  
Re: How about a pocket / hand held RPL calc?
Message #4 Posted by Geir Isene on 27 Jan 2011, 5:19 p.m.,
in response to message #3 by Michael de Estrada

I did an honest, real attempt at RPL for more than 6 month flat out. Eagerly programming lots in RPL. I found it RePuLsive. It's clunky, cumbersome and counter-intuitive - whereas RPN is simple, elegant and nice. Me awaits the 41CL.

            
Re: How about a pocket / hand held RPL calc?
Message #5 Posted by Reth on 31 Jan 2011, 10:52 p.m.,
in response to message #2 by Walter B

RPL is not that hard to learn at all. Many years ago I lost my beloved HP41CV and had to replace it with the then available HP-28S with manuals in German language of which I have no clue whatsoever. Only by reading the examples in the book in less than a week time I rewrote all my surveying programs in RPL. I find programing in RPL is heaps a lot easier and quicker than in RPN. I still do RPN for fun (I got a few HP-41's latter), but it's not for more serious tasks. BTW the brilliant 42S emulator on iPhone gives me more pleasure to do RPN programming. Cheers

      
Re: How about a pocket / hand held RPL calc?
Message #6 Posted by Raymund Heuvel on 27 Jan 2011, 3:11 p.m.,
in response to message #1 by Michael de Estrada

I would consider as minimum a BlueTooth interface for voice commands and result output.
Would be nice having a chat with a RPN calculator.
As a collateral feature, amongst others, files can be exchanged also with it.
A mesh network of RPL/RPN calculators is also on my wish list.

:) Raymund

            
Re: How about a pocket / hand held RPL calc?
Message #7 Posted by Ren on 27 Jan 2011, 9:05 p.m.,
in response to message #6 by Raymund Heuvel

Quote:
I would consider as minimum a BlueTooth interface for voice commands and result output.
Would be nice having a chat with a RPN calculator.

:) Raymund


Talking to an RPN calculator (I suspect) would be a bit like talking to Yoda.

"Want you, I do, number ENTER into stack, number another likewise you must, number first, number second, divide by, wence thou knowest quotient, displayeth said quotient to thine eyes."

B^)

Ren

dona nobis pacem

                  
LOL!!
Message #8 Posted by Martin Pinckney on 27 Jan 2011, 11:16 p.m.,
in response to message #7 by Ren

~

                  
Re: How about a pocket / hand held RPL calc?
Message #9 Posted by Norman Dziedzic on 28 Jan 2011, 7:26 a.m.,
in response to message #7 by Ren

ENTER or not ENTER, there is no =

                        
Re: How about a pocket / hand held RPL calc?
Message #10 Posted by Mark Harman on 28 Jan 2011, 1:17 p.m.,
in response to message #9 by Norman Dziedzic

LOL!!!

      
Re: How about a pocket / hand held RPL calc?
Message #11 Posted by David Hayden on 27 Jan 2011, 4:09 p.m.,
in response to message #1 by Michael de Estrada

I think it would be fun to do an RPL calculator on the 30b hardware. This would be a 32-bit native ARM RPL interpretter.

            
Re: How about a pocket / hand held RPL calc?
Message #12 Posted by Katie Wasserman on 27 Jan 2011, 4:16 p.m.,
in response to message #11 by David Hayden

It's straightforward to re-purpose a 30b, you just need the special cable and the free IAR software. The problem is that it will end up like a fast 28C because there's only 2K on non-volatile RAM to use. The 28C was such a huge disappointment becasue the tiny amount of memory made it almost useless for anything but simple calculations and a few programs.

                  
Re: How about a pocket / hand held RPL calc?
Message #13 Posted by Raymond Del Tondo on 27 Jan 2011, 5:20 p.m.,
in response to message #12 by Katie Wasserman

It would be nicer if someone would find a way to reprogram the silver 17bII+ on the firmware side,
as this machine has a much better hardware than the 30b in nearly every respect.

However, for my daily tasks, even the 17bII+ is overfeatured.
I have no need for Sine or Cosine since more than eight years,
and the logs, inverses and PI are there.

Ray

                        
Re: How about a pocket / hand held RPL calc?
Message #14 Poste