path: root / Year 2 / Functional Programming / 01-Practice-03.10.2022.rkt


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(define (avgsqr a b)
  (define (sqr x)
    (* x x))
  (/ (+ (sqr a) (sqr b)) 2))

(define (fac x)
  (if (<= x 1)
    1
    (* x (fac (- x 1)))))

(define (minfib maxval)
  (define (minfib maxval [a 1] [b 1])
    (if (> b maxval)
      a
      (minfib maxval b (+ a b))))
  (minfib maxval))

(define (fib x)
  (if (<= x 1)
    1
    (+ (fib (- x 2)) (fib (- x 1)))))