Created
August 15, 2013 20:14
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sicp 2.21
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| (define (square-list items) | |
| (if (null? items) | |
| () | |
| (cons (* (car items) (car items)) (square-list (cdr items)))) | |
| ) | |
| (define (square-list1 items) | |
| (map (lambda (x)(* x x)) items)) | |
| (square-list (list 1 2 3 4)) | |
| (square-list1 (list 1 2 3 4)) |
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