Index << >>
Application: Outer Product
10 20 30 +R 0 16 +1 2 3 4 11 12 13 14 21 22 23 24 31 32 33 34 10 20 30 ∘.+ 1 2 3 4 11 12 13 14 21 22 23 24 31 32 33 34