;; 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-beginner-reader.ss" "lang")((modname 8.2.1) (read-case-sensitive #t) (teachpacks ()) (htdp-settings #(#t constructor repeating-decimal #f #t none #f ()))) (require installed-teachpacks/picturing-programs) ; Worked exercise 8.2.1 ; blue-circle-of-size : number -> image ;(check-expect (blue-circle-of-size 2) ; (circle 2 "solid" "blue")) ;(check-expect (blue-circle-of-size 37) ; (circle 37 "solid" "blue")) (define (blue-circle-of-size radius) ; radius number ; "blue" a fixed string I'll need (circle radius "solid" "blue")) (big-bang 7 (on-draw blue-circle-of-size 100 50))