[Bug-apl] stacked rank operator

[Xiao-Yong Jin]

This should work,

      (2 3 5 4⍴⍳24)(+⍤1⍤¯1)(2 4⍴⍳8)
VALUE ERROR
μ-Z__A_LO_RANK_X7_B[4]  →(μ-X7≢¯1)⍴μ-WITH_AXES
                          ^
You could use the axis operator generically

      (2 3 5 4⍴⍳24){⍺+[1,(⍴⍴⍺)⌈⍴⍴⍵]⍵}(2 4⍴⍳8)

but the rank operator seems cleaner.

Best,
Xiao-Yong