Index << >>
Models Row by Column
dotc ← {↑ (↓⍺) ∘.(⍺⍺{⍺⍺/⍺ ⍵⍵ ⍵}⍵⍵) ↓(¯1⌽⍳⍴⍴⍵)⍉⍵} dotc1 ← {↑ (↓⍺) ∘.(⍺⍺{⍺⍺/⍺ ⍵⍵ ⍵}⍵⍵) ↓flip ⍵} dotc2 ← {↑ (↓⍺) ∘.(⍺⍺/at ⍵⍵) ↓flip ⍵} flip ← {(¯1⌽⍳⍴⍴⍵)⍉⍵} at ← {⍺⍺(⍺ ⍵⍵ ⍵)}