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HP Forum Archive 18

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OT: New RPN Calculator
Message #1 Posted by Xerxes on 12 Dec 2007, 7:50 p.m.

The new Elektronika MK-152

It is keystroke programmable like the MK-52/61.

      
I Want One
Message #2 Posted by db (martinez, ca.) on 12 Dec 2007, 8:45 p.m.,
in response to message #1 by Xerxes

NOW!
Any idea how to buy one from here?
BTW: do you think from the description that it's an updated one of these?

            
Re: I Want One
Message #3 Posted by Xerxes on 13 Dec 2007, 7:21 a.m.,
in response to message #2 by db (martinez, ca.)

I'm not sure about this strange calculator, but you can find some informations here.

Edit: The manufacturer

Edited: 13 Dec 2007, 7:43 a.m.

      
Re: OT: New RPN Calculator
Message #4 Posted by Raymond Del Tondo on 13 Dec 2007, 12:41 a.m.,
in response to message #1 by Xerxes

Eeeek!

This thing doesn't even have a real keyboard:-/

It looks more like one of these balance devices
the butcher uses to get the weight of the sausage disks...

Raymond

            
Re: OT: New RPN Calculator
Message #5 Posted by Xerxes on 13 Dec 2007, 7:03 p.m.,
in response to message #4 by Raymond Del Tondo

Yes, I have to agree.

            
Re: OT: New RPN Calculator
Message #6 Posted by John B. Smitherman on 13 Dec 2007, 7:40 p.m.,
in response to message #4 by Raymond Del Tondo

Looking at that beast makes one appreciate the styling of the 35s!

Regards,

John

            
Re: OT: New RPN Calculator
Message #7 Posted by Thomas Radtke on 15 Dec 2007, 8:17 a.m.,
in response to message #4 by Raymond Del Tondo

Yes. If it is as robust as it looks (and waterproof), it could be the ideal calculator in many labs.

I bet one could make some money from importing and placing it into any lab equipment catalog. Still, several repetitive calculations are done in this area by hand, both time consuming and boring. Time to change that (of course, while I was in biophysics, I had everything in my 32SII, but never saw a workmate using a programmable :-).

      
Re: OT: New RPN Calculator
Message #8 Posted by Serguei_Tarassov on 13 Dec 2007, 9:42 a.m.,
in response to message #1 by Xerxes

MK-152 is not exactly like MK-61/52 (they are pocket devices) but like MK-46/56/64.
See comparisons photos here
Originally MK-152 was designed by producer to manage its equipment/devices.

            
Re: OT: New RPN Calculator
Message #9 Posted by Xerxes on 13 Dec 2007, 7:00 p.m.,
in response to message #8 by Serguei_Tarassov

Hello Serguei,

I have found your interesting article about the comparison between the old MKs and the MK-152. Is it correct, that the old MKs are all equal in execution speed? Is it possible to send me your test program for inserting to the database?

                  
Re: OT: New RPN Calculator
Message #10 Posted by Serguei_Tarassov on 14 Dec 2007, 4:15 a.m.,
in response to message #9 by Xerxes

Hello!

Not at all, the new MK-152 is about 1300 time faster that all old models, both pocket and desktop.

You could better use the second program that take about 13 seconds at the N-Queens test. There are some cyrillics characters so I changed it to english analogs. 

00.Cx    01.1  02.2     03.MS0   04.Cx   05.KMS0  06.MR0 07.Fx=0  08.04   09.8
10.MRB   11.-  12.Fx<>0 13.56    14.MRB  15.1     16.+   17.MSB   18.8    19.KMSB
20.MR9   21.1  22.+     23.MS9   24.MRB  25.MSA   26.MRA 27.1     28.-    29.MSA
30.Fx<>0 31.09 32.KMRB  33.KMRA  34.-    35.Fx<>0 36.44  37.K|x|  38.MRB  39.MRA
40.-     41.-  42.Fx=0  43.26    44.KMRB 45.1     46.-   47.KMSB  48.Fx=0 49.20
50.MRB   51.1  52.-     53.MSB   54.Fx=0 55.44    56.MR9 57.S/P

where MS - memory store, MR - memory reclaim, S/P - Start/Stop

Feel free to email me "serge at arbinada dot com" for more information. French, English and Russian texts are welcome ;)

                  
Re: OT: New RPN Calculator
Message #11 Posted by Serguei_Tarassov on 14 Dec 2007, 4:26 a.m.,
in response to message #9 by Xerxes

P.S. Excuse me if I didn't understand your question about speed. The speed of old calculators (B3-34, MK-54/56/61/52) are nearly the same.

                        
Re: OT: New RPN Calculator
Message #12 Posted by Xerxes on 14 Dec 2007, 9:44 a.m.,
in response to message #11 by Serguei_Tarassov

Thanks for translating the test program. I have added it to the database and corrected the MK-152 to 13 seconds versus the MK-52 with 189 minutes. The automatic translation of your article is not clear at some points especially the differences of the test programs, but I hope the values are ok now.

Do you know which CPU is used in the MK-152 and it's clock speed?

                        
Re: OT: New RPN Calculator
Message #13 Posted by Serguei_Tarassov on 14 Dec 2007, 5:14 p.m.,
in response to message #11 by Serguei_Tarassov

Not at all. Thanks to inserting MK-152 in the benchmark test too :)

AFAIK, MK-152 uses W77LE516 chip on 22 MHz

I can propose you new article about MK-152 written in English especially for foreign readers that contains both technical details and cultural background.

MK-152: Old Russian Motive in a New Space Age

                              
Re: OT: New RPN Calculator
Message #14 Posted by Eric Smith on 14 Dec 2007, 5:17 p.m.,
in response to message #13 by Serguei_Tarassov

Thanks for posting the English article.

Edited: 15 Dec 2007, 12:45 a.m.

                                    
Re: OT: New RPN Calculator
Message #15 Posted by Serguei_Tarassov on 15 Dec 2007, 6:19 a.m.,
in response to message #14 by Eric Smith

You are welcome, but I'm not the author ;)

                              
Re: OT: New RPN Calculator
Message #16 Posted by Xerxes on 14 Dec 2007, 9:04 p.m.,
in response to message #13 by Serguei_Tarassov

The core of the W77LE512 seems to be an Intel 8051 8-bit µC.

Interesting to read the article.

                                    
Re: OT: New RPN Calculator
Message #17 Posted by Serguei_Tarassov on 15 Dec 2007, 6:17 a.m.,
in response to message #16 by Xerxes

Yes, probably you are right 8051. AFAIK, there is a Russian similar chip MK51 (not a Soviet calculator MK-51 ;) ) and using W77LE512 (Chinese) instead of MK-51 is only by price reason but no other problem to use only domestically produced chips if need.

                  
Re: OT: New RPN Calculator
Message #18 Posted by Serguei_Tarassov on 15 Dec 2007, 4:44 p.m.,
in response to message #9 by Xerxes

Xerxes,

As I said, current variant was a Citizen FX-4500PA manual recoding. I check again my first variant of N-Queen test originally written using pascal-coded algorithm and it gives queen's positions correctly (Qa8, Qb4, Qc1, Qd3, Qe6, Qf2, Qg7, Qh5).

So following code is more faster: 8 seconds. Could you please modify MK-152 data in the list? Here is a program to reproduce.

Thanks in advance.

00.Cx    01.1   02. 2    03.MS0   04.Cx    05.KMS0  06.MR0  07.Fx=0  08.04    09.8
10.MRB   11.-   12.Fx<>0 13.56    14.MRB   15.1     16.+    17.MSB   18.8     19.KMSB
20.MR9   21.1   22.+     23.MS9   24.MRB   25.MSA   26.MRA  27.1     28.-     29.MSA
30.Fx<>0 31.09  32.KMRB  33.KMRA  34.-     35.Fx<>0 36.44   37.K|x|  38.MRB   39.MRA
40.-     41.-   42.Fx=0  43.26    44.KMRB  45.1     46.-    47.KMSB  48.Fx=0  49.20
50.MRB   51.1   52.-     53.MSB   54.Fx=0  55.44    56.MR9  57.S/P
                        
Re: OT: New RPN Calculator
Message #19 Posted by Xerxes on 15 Dec 2007, 7:50 p.m.,
in response to message #18 by Serguei_Tarassov

I guess you mean Casio FX-4500PA? ;-)

I have updated the MK-152 result, but are you sure with the program? It's the same as above, if I'm right.

Usually the unstructured code, e.g. the FX-4500PA version, is the faster one. Have a look at the comment below the PASCAL code.

                              
Re: OT: New RPN Calculator
Message #20 Posted by Serguei_Tarassov on 16 Dec 2007, 5:30 a.m.,
in response to message #19 by Xerxes

Yes, you're right about Cassio ;)

Sorry for mistakes... Indeed, I posted the same programs... So the first one was not corresponding to result.

Now all is OK: code and result.

Thank you for help.

            
Re: OT: New RPN Calculator
Message #21 Posted by db (martinez, ca.) on 13 Dec 2007, 8:50 p.m.,
in response to message #8 by Serguei_Tarassov

I wish i could understand what the links say. All i know is, well nothing; but i believe that it is an RPN programmable (i see the russian symbol for "enter"), with connections to the outside world. Cool. Where do i sign?

                  
Re: OT: New RPN Calculator
Message #22 Posted by Eric Smith on 13 Dec 2007, 10:47 p.m.,
in response to message #21 by db (martinez, ca.)

Google Translate is your friend.

      
Re: OT: New RPN Calculator
Message #23 Posted by Frank Rottgardt on 13 Dec 2007, 4:23 p.m.,
in response to message #1 by Xerxes

Here is the link to a Emulator MK-61/52 with enhanced input language page. (the actual link to the zip-file is on the botton of the page).

Do not know if it works.

            
Re: OT: New RPN Calculator
Message #24 Posted by Xerxes on 13 Dec 2007, 7:10 p.m.,
in response to message #23 by Frank Rottgardt

It works, but it's not easy to use it. ;-)

            
Re: OT: New RPN Calculator
Message #25 Posted by Serguei_Tarassov on 14 Dec 2007, 4:20 a.m.,
in response to message #23 by Frank Rottgardt

Frank,

here is a link to simulator that is easy to use and show true foreground view of calculators. So you can even press buttons on image ;)

      
Re: OT: New RPN Calculator
Message #26 Posted by Karl Schneider on 14 Dec 2007, 2:14 a.m.,
in response to message #1 by Xerxes

Some of the comments about the calc at the website, in only-slightly-fractured English and presumably from Russians, are entertaining to read. For example:

"It is a shame to me with my country
pfff"

-- KS

            
Re: OT: New RPN Calculator
Message #27 Posted by Xerxes on 14 Dec 2007, 8:42 p.m.,
in response to message #26 by Karl Schneider

Yes, I found this comment conspicuous too.

            
Re: OT: New RPN Calculator
Message #28 Posted by Serguei_Tarassov on 15 Dec 2007, 6:22 a.m.,
in response to message #26 by Karl Schneider

It's a shame to me with such "compatriot" :((

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