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tetsu-miyagawa/SICP Section 1.1.8.scm

Created July 2, 2015 20:44
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SICP Section 1.1.8
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SICP Section 1.1.8.scm
(define (square-root x)
(define (good-enough? guess x)
(< (abs (- (square guess) x)) 0.001))
(define (improve guess x)
(average guess (/ x guess)))
(define (sqrt-iter guess x)
(if (good-enough? guess x)
guess
(sqrt-iter (improve guess x) x)))
(sqrt-iter 1.0 x))
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