I tried to make it clear that I have no plans to molest =y. Rest easy.
Henry Rich
On Wed, Dec 7, 2022, 6:37 PM <neit...@gaertner.de> wrote:
> Henry Rich wrote:
> > I abhor (= y) because it is so wasteful of space and computation.
> > '(i.~ y) gives the same information more compactly. Given the chance,
> > I would expunge monad = .
>
> Please don't. I'm a happy =Self-Classify user. There are times when
> I exactly need the bit matrix form yielded from "=". For example, just
> today for AOC:
>
> NB. dir + subdirs marker matrix:
> sdmm =. (= + x_has_subdir_y/~) {."1 local_sizes
>
> =/~ would have been an acceptable substitute in this specific case.
> "The same information more compactly" would not really have helped me.
>
> In a similar vein, I happend to use monadic e. (Raze In) just a few
> days ago for the AOC "Rucksack Reorganization", solving 3a + 3b
> with the same "finder" auxiliary. Another case of a space wasting
> but sometimes really helpful boolean matrix generator.
>
> Martin
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