List Commands Library for 50g

[DavidM]

(07-26-2018 05:00 AM)brickviking Wrote:  I had a couple of questions vaguely related to ListExt.

• Aside from the speed of the 41C platform, what else would preclude it from some of the list-processing aspects present in ListEx?
• Has a list-processing plugin/mod/ROM been created for that platform, and if so, how useful has it been?
• If one hasn't been created yet (like, huh??), how much work would be required to include a reasonable subset of ListExt features in a new MCode project?
  

I haven't had any experience with the 41C family, so I can't comment on how fast/slow it is in comparison to other families such as the 48xX family. I like the fact that a library like this can be preloaded if you're going to use it a lot, or left out if you don't need it much.

(Post 262)

Although I once owned a 41C bundle (and used it daily), I had to sell it back in the early 90s and thus haven't kept up-to-date with that part of the calculator world. So these questions are probably best suited for others that are more current on that platform. Hopefully some of the more knowledgeable folks will see this and respond.

That said, the first thing that strikes me about "list processing" in a 41 environment is that the concept of varying object types is mostly limited to strings and numbers, and even those are fairly narrowly defined. Since a "list of numbers" isn't much different than a vector or matrix, you'd probably find the lion's share of programs being described as using arrays, matrices, or vectors instead of lists. Even dealing with those 41 data types is mostly handled through a layer of abstraction, with the actual data being stored in a series of registers with meta information (location, size, type) stored separately in some conventional way.

So the context on the 41 would probably be limited to numeric arrays, and I'm sure lots of functionality exists for that already. It's probably not described as "list processing", though.

This really isn't my area of expertise, though, so I should probably just stop typing now and leave it to those more familiar with the 41 than me.