'Apply env' diaporamas de présentation

Implementing Recursion

Implementing Recursion. let insufficient for recursion. (let ( ( fact ( lambda (n) (if (zero? n) 1 ( * n ( fact (- n 1)) ) ) ) ) ) (fact 6) )

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Implementing Recursion

Implementing Recursion. let insufficient for recursion. (let ( ( fact ( lambda (n) (if (zero? n) 1 ( * n ( fact (- n 1)) ) ) ) ) ) (fact 6) )

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2.3 Representation Strategies for Data Types

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3.6 Interpreter: Recursion

3.6 Interpreter: Recursion. Recall Scheme's letrec (recursive let ): > (letrec ((fact (lambda (x) (if (zero? x) 1 (* x (fact (- x 1))))) (fact 6)) 720. Question: Why letrec and not let ?. 3.6 Recursion.

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