Add Fibonnacci

fibonacci-goldener-schnitt.rkt

@@ -0,0 +1,15 @@
+;; The first three lines of this file were inserted by DrRacket. They record metadata
+;; about the language level of this file in a form that our tools can easily process.
+#reader(lib "htdp-advanced-reader.ss" "lang")((modname fibonacci-goldener-schnitt) (read-case-sensitive #t) (teachpacks ()) (htdp-settings #(#t constructor repeating-decimal #t #t none #f () #f)))
+(define (fib n) (cond
+                  [(= n 0) 1]
+                  [(= n 1) 1]
+                  [else (+ (fib (- n 1)) (fib (- n 2)))]
+                  ))
+
+(define (make-numbers n) (cond
+                           [(= n 0) (list 0)]
+                           [else (append (make-numbers (- n 1)) (list n))]
+                           ))
+
+(define (x n) (map (lambda (x) (/ (fib (+ x 1)) (fib x))) (make-numbers n)))