;; 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-intermediate-lambda-reader.ss" "lang")((modname demo) (read-case-sensitive #t) (teachpacks ((lib "docs.rkt" "teachpack" "htdp"))) (htdp-settings #(#t write repeating-decimal #f #t none #f ((lib "docs.rkt" "teachpack" "htdp")) #f)))
(define (f s)(+ 2 s))
(f 5)
(f 3)
(f -1)


(define (fact n) (if (zero? n) 1 (* n (fact (+ n -1)))))

(fact 0)
(fact 3)

(define (const x) 5 )
(const 6)
; (define (newconst )5) - this doesn't work due to syntax error; fcn has to have
;at least one argument;