4 hours ago

my attempt to do the exercises in sicp.

## Saturday, July 5, 2008

### sicp exercise 1.20

; Exercise 1.20. The process that a procedure generates is of course dependent on the rules used by the

; interpreter. As an example, consider the iterative gcd procedure given above. Suppose we were to interpret ; this procedure using normal-order evaluation, as discussed in section 1.1.5. (The normal-order-evaluation

; rule for if is described in exercise 1.5.) Using the substitution method (for normal order), illustrate

; the process generated in evaluating (gcd 206 40) and indicate the remainder operations that are actually

; performed. How many remainder operations are actually performed in the normal-order evaluation of

; (gcd 206 40)? In the applicative-order evaluation?

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