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A comment on Structure and Interpretation of Computer Programs (SICP) Book. Parent comment
Part d of the question is:
" d. Suppose we change the representation of mobiles so that the constructors are
(define (make-mobile left right) (cons left right)) (define (make-branch length structure) (cons length structure))
How much do you need to change your programs to convert to the new representation? "
It may not be discussed in depth - I suspect they decided it was out of scope for the book, but they were definitely thinking about it...
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Part d of the question is:
" d. Suppose we change the representation of mobiles so that the constructors are
(define (make-mobile left right) (cons left right)) (define (make-branch length structure) (cons length structure))
How much do you need to change your programs to convert to the new representation? "
It may not be discussed in depth - I suspect they decided it was out of scope for the book, but they were definitely thinking about it...