#| BEGIN (Введите свое решение) |#
(define (average a b) (/ (+ a b) 2))

(define tolerance 0.00001)

(define (fixed-point f first-guess)
    (define (close-enough? v1 v2)
        (< (abs (- v1 v2)) tolerance))
    (define (try guess)
        (let ((next (f guess)))
            (display next)
            (newline)
            (if (close-enough? guess next)
                next
                (try next))))
    (try first-guess))

; (define (solution x) (+ 1 (/ 1 x)))
; (fixed-point solution 1.0)

; (fixed-point (lambda (x) (/ (log 1000) (log x))) 2)
#| END |#