Circle Backslash (⍉)

⍉ 𝕩: Transpose

Move the first axis of 𝕩 to the end.

       a ← 3‿3 ⥊ ↕9

       ⍉ a
┌─       
╵ 0 3 6  
  1 4 7  
  2 5 8  
        ┘

       b ← 1‿2‿3 ⥊ ↕6

       ≢⍉ b
⟨ 2 3 1 ⟩

𝕨 ⍉ 𝕩: Dyad

Rearrange the axes of 𝕩 as per the axis indices in 𝕨.

       ≢ a ← 2‿3‿4‿5‿6 ⥊1
Error: Redefinition

       ≢ 1‿3‿2‿0‿4 ⍉ a
Error: 𝕨⍉𝕩: Length of 𝕨 must not exceed rank of 𝕩