1 665c255d 2023-08-04 jrmu  Exercise 1.30.  The sum procedure above generates a linear recursion. The procedure can be rewritten so that the sum is performed iteratively. Show how to do this by filling in the missing expressions in the following definition:
2 665c255d 2023-08-04 jrmu 
3 665c255d 2023-08-04 jrmu (define (sum term a next b)
4 665c255d 2023-08-04 jrmu   (define (iter a result)
5 665c255d 2023-08-04 jrmu     (if <??>
6 665c255d 2023-08-04 jrmu         <??>
7 665c255d 2023-08-04 jrmu         (iter <??> <??>)))
8 665c255d 2023-08-04 jrmu   (iter <??> <??>))