'Define make queue nil' presentation slideshows

Lecture 15: More about assignment and the Environment Model (EM)

Lecture 15: More about assignment and the Environment Model (EM). Another thing the substitution model did not explain well:. Nested definitions : block structure ( define (sqrt x) (define (good-enough? guess) (< (abs (- (square guess) x)) 0.001)) (define (improve guess)

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