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define
sqrt
x

define
good-enough?
guess

<
abs
−
square
guess

x

0.001

define
improve
guess

average
guess
/
x
guess

define
sqrt-iter
guess

if
good-enough?
guess

guess

sqrt-iter
improve
guess

sqrt-iter
1.0

define
filter
predicate
sequence

cond
null?
sequence
nil

predicate
car
sequence

cons
car
sequence

filter
predicate
cdr
sequence

else
filter
predicate
cdr
sequence
Хостинг от uCoz