Benny is right. This problem is *much* easier if you break it up and
do it in baby steps. You can start very simply, get it working, and
then factor as you like. For example, in Scheme notation (I'm not a
clojure guy yet):
(map * '(1 2 3) '(1 2 3))
-> (1 4 9)
(map (lambda (x) (map * '(1 2 3) x)) '((1 2 3) (1 2 3)))
-> ((1 4 9) (1 4 9))
(define (distribute-target-over-signal t s)
(map (lambda (tmp) (map * t tmp)) s))
-> ok
(distribute-target-over-signal '(1 2 3) '((1 2 3) (1 2 3)))
-> ((1 4 9) (1 4 9))
(define (the-whole-ball-of-wax t s)
(map distribute-target-over-signal t s))
-> ok
(the-whole-ball-of-wax '((1 2 3) (1 2 3)) '(((1 2 3) (1 2 3)) ((1 2 3)
(1 2 3))))
-> (((1 4 9) (1 4 9)) ((1 4 9) (1 4 9)))
Then you can refactor until you're happy.
Adam
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