⊖
First-axis forms of ⌽. [K] overrides the axis.
⌽
[K]
⊖2 3⍴⍳6 ⍝ 2 3⍴4 5 6 1 2 3 1⊖3 2⍴⍳6 ⍝ 3 2⍴3 4 5 6 1 2