apl

The array-language landscape, while fascinating, is confusing to no end. Is there a reason to pick one of J or K or APL or A? None of these options seem to be open-sourced -- are there open sourced versions? I would love the expand my mind, but I remain befuddled. kaleidic The differences among these languages are relatively subtle. APL "proper" has the advantages, and disadvantages, of the original symbolic notation. (There are minor changes that have been made to the symbol set over the years, but they're all true enough to the original vision.) The A+ language is available open source. It

In the FinnAPL Idiom Library, the 19th item is described as “Ascending cardinal numbers (ranking, all different) ,” and the code is as follows: ⍋⍋X I also found a book review of the same library by R. Peschi, in which he said, “'Ascending cardinal numbers (ranking, all different)' How many of us understand why grading the result of Grade Up has that effect?” That's my question too. I searched extensively on the internet and came up with zilch. Ascending Cardinal Numbers For the sake of shorthand, I'll call that little code snippet “rank.” It becomes evident what is happening with rank when you