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Differences between the DM-42 and upcoming DM-41x?
07-31-2020, 07:05 AM
Post: #1
Differences between the DM-42 and upcoming DM-41x?
What are the major differences between these two calculators? Does it basically boil down to being able to load modules?
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07-31-2020, 07:20 AM
Post: #2
RE: Differences between the DM-42 and upcoming DM-41x?
The DM-42 is based on Free42 which is a re-implementation of the HP 42S. Complex numbers, matricies, solver, integration, binary arithmetic and many more additional functions. It also has more memory available.

Pauli
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07-31-2020, 02:17 PM
Post: #3
RE: Differences between the DM-42 and upcoming DM-41x?
Generally, the DM 42 is based on Free42 which is based on the HP42S. The DM 41x is based on the HP 41C. I think the DM 41x will have some of the modules preinstalled (?).
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07-31-2020, 02:57 PM
Post: #4
RE: Differences between the DM-42 and upcoming DM-41x?
(07-31-2020 02:17 PM)Eddie W. Shore Wrote:  The DM 41x is based on the HP 41C. I think the DM 41x will have some of the modules preinstalled (?).

Make that the HP-41CX rather than the 41C. You get the full complement of RAM and Extended Memory right from the get go as well as the Time Module and its functions, plus a few extras that are specific to the DM41X.

I believe some modules will indeed be preinstalled on the flash disk drive but it will still be up to the end user to "plug" them in à la 41CL.

There are only 10 types of people in this world. Those who understand binary and those who don't.
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08-06-2020, 03:00 PM
Post: #5
RE: Differences between the DM-42 and upcoming DM-41x?
I find it amazing that after 40 years, a new version of HP41C (the 41CX to be more exact) is appearing and is being well received. While it is easier to program in high level languages (and even in HP-71B BASIC to some extent) like Python, Matlab, Excel VBA, and so on, whose codes are all easier to read, I still find the clever tricks of keystroke programming interesting. I was using a few such tricks in programming the Bessel function for the HP41CX, HP-29C and HP25.

Of course, documenting the RPN programs is paramount to make them readable later.

Cheers,

Namir
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