Assuming Jamel does a self study. I think Jamel ment (/ (+ (* n n) 300) (* 13 n)). Grant, with your definition: (define (f n) ( + ( * n 2 ) 300)) (f 5) -> 310 As Jamel is expecting 325, I assume n*2 is ment as an exponentiation. There are many ways to write this down, for example: (define (f n) (/ (+ (expt n 2) 300) (* 13 n))) (define (f n) (/ (+ (* n n) 300) 13 n)) (define (f n) (/ (+ (expt n 2) 300) 13 n)) Jos
_____ From: users-boun...@racket-lang.org [mailto:users-boun...@racket-lang.org] On Behalf Of Grant Rettke Sent: sábado, 12 de enero de 2013 20:38 To: Jamel Hamani Cc: users@racket-lang.org Subject: Re: [racket] novice question about expressions (/ (+ (* n 2) 300) (* 13 n)) On Fri, Jan 11, 2013 at 8:08 PM, Jamel Hamani <jamelham...@gmail.com> wrote: (n*2+ 300) / (13n) -- Grant Rettke | ACM, AMA, COG, IEEE gret...@acm.org | http://www.wisdomandwonder.com/ Wisdom begins in wonder. ((λ (x) (x x)) (λ (x) (x x)))
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