A Tour (de Force) of APL in 16 Expressions

Exercise: Cayley’s Theorem

Cayley’s Theorem states that for r←, ⍳ ⊢ and G a group table,

   (r G) ≡ r ∘.{⍺[⍵]}⍨ ↓r G

Try Cayley’s Theorem on different groups. For example:


G←13|∘.+⍨⍳13
G←13|∘.×⍨1↓⍳13