Circle Star (⍟)

𝔽⍟𝔾 𝕩, 𝕨 𝔽⍟𝔾 𝕩: Repeat

Apply 𝔾 to 𝕨 and 𝕩 and apply 𝔽 to 𝕩 that may times. If 𝕨 is given, keep it as a constant left argument.

If 𝔾 returns an array, give 𝔽⍟𝕩 for each element.

       1 +⍟⊢ 4
8

       1 +⍟1‿2‿3 4
⟨ 5 6 7 ⟩

       3 ∾⍟{≠𝕩} ⟨4,5,6⟩
⟨ 3 3 3 4 5 6 ⟩