The Reflex/Commute Operator

The monadic operator ⍨ is defined and modeled as follows: f⍨ ⍵ ←→ ⍵ f ⍵ ⍺ f⍨ ⍵ ←→ ⍵ f ⍺ {⍺←⍵ ⋄ ⍵ ⍺⍺ ⍺} Reflex Some common well-known functions can be written as f⍨ where f is itself a well-known function:    +⍨    double    ×⍨    square    ?⍨ […]