Comment by rfw

Tangentially, the Löb function over (Haskell) functors implements spreadsheet-like computations in an unexpected way: https://github.com/quchen/articles/blob/master/loeb-moeb.md

ex.

    loeb [const 1,
          const 2,
          \xs -> x !! 0 + x !! 1]

gives you [1, 2, 3].

Naturally, it doesn't allow for mutations or anything fancy, but it is an interesting curiosity.