I tried the same examples in APL/X and Dyalog APL. APL/X seems to give the same results as GNU APL: but both enclose are indented right by one column
But Dyalog APL has quite a different result: no blank lines between rows. > On Aug 26, 2021, at 12:44, Dr. Jürgen Sauermann > <m...@xn--jrgen-sauermann-zvb.de> wrote: > > Hi again, > > checking the same in IBM APL2, the behaviour of GNU APL seems correct. > (see attached Screenshot). > > Best Regards, > Jürgen > > > > > On 8/26/21 5:58 PM, Dr. Jürgen Sauermann wrote: >> Hi Hans-Peter, >> >> thanks, I will look into this. >> >> The general problem is that the rules how nested values with rank ≥ 2 should >> be displayed are, at least as far as I know, nowhere specified in a formal >> fashion. >> From old APL 1 we know that the higher dimensions (> 2) of a not-nested value >> shall be separated by a number of empty lines, but we don't really know, for >> example, >> how these separator lines should be handled when the value is being >> enclosed. >> >> To me it is not clear if there is a line missing in ⊂¨2 2 ⍴ e or if there >> maybe is a line >> too much in ⊂2 2 ⍴ e (even though that way it looks a little nicer). >> >> Best Regards, >> Jürgen >> >> >> >> On 8/26/21 11:29 AM, Hans-Peter Sorge wrote: >>> Hi, >>> >>> >>> ⍝ just a simple matrix >>> >>> i∘.+i←¯1+⍳2 >>> 0 1 >>> 1 2 >>> >>> ⍝ make it an element >>> ⎕ ← e ← ⊂i∘.+i←¯1+⍳2 >>> 0 1 >>> 1 2 >>> >>> >>> ⍝ matrix of matrixes.... >>> 2 2 ⍴ e >>> 0 1 0 1 >>> 1 2 1 2 >>> >>> 0 1 0 1 >>> 1 2 1 2 >>> >>> >>> ⍝ enclose the matrix of matrixes indents nicely ... >>> ⊂ 2 2 ⍴ e >>> 0 1 0 1 >>> 1 2 1 2 >>> >>> 0 1 0 1 >>> 1 2 1 2 >>> >>> >>> ⍝ display of enclose each 'sub'-matrix misses space line >>> ⊂¨2 2 ⍴ e >>> 0 1 0 1 >>> 1 2 1 2 >>> 0 1 0 1 >>> 1 2 1 2 >>> >>> Best Regards >>> Hans-Peter >> > > <APL2.png> --- Louis Chrétien lchret...@mac.com
