[plt-scheme] htdp section 17.7

Actually I do have a query on how to represent number 5 .

(define (k w) (* (h w) (i w)))

Is the correct representation of (* (h w) (i w)) derived by substituting (h 
w) with a representation of  its body (which is defined by number 3 below?

----Original Message Follows----
From: "wooks ." <wookiz at hotmail.com>
To: plt-scheme at list.cs.brown.edu
Subject: Re: [plt-scheme] htdp section 17.7
Date: Fri, 07 Jul 2006 02:24:10 +0100

I did mean 3 and 5 as below from 17.7.2 but I have belatedly realised that I 
interpreted the question wrongly so no harm done.

PS - Re the 2 hours max - I haven't started on the problem as I have been 
reading ahead on Intermezzo 3 . I will tell you how long it takes me.


Translate the following definitions into Scheme values:

   1.

      (define (f x) (+ 3 x))
   2.

      (define (g x) (* 3 x))
   3.

      (define (h u) (f (* 2 u)))
   4.

      (define (i v) (+ (* v v) (* v v)))
   5.

      (define (k w) (* (h w) (i w)))




----Original Message Follows----
From: Matthias Felleisen <matthias at ccs.neu.edu>
To: Chris Warrington on the PLT Scheme List <plt-scheme at list.cs.brown.edu>
Subject: Re: [plt-scheme] htdp section  17.7
Date: Thu, 6 Jul 2006 19:08:24 -0400

Quite possible. I'll find out. -- Matthias


On Jul 6, 2006, at 6:21 PM, Chris Warrington wrote:

>
>Matthias Felleisen @ 2006-7-06 2:12:38 PM
>"[plt-scheme] htdp section  17.7" <mid:356D9226-1E15-410D- 
>B023-47CB0DCCA9C3 at ccs.neu.edu>
>
>>>I ask with particular reference to problems 3 and 5 which seem to
>>>require a null parameter and a null expression respectively.
>
>>Huh?
>
>Does he, perhaps, mean free variables?
>
>--
>Chris Warrington <chrisw at rice.edu>
>
>"Always be wary of any helpful item that weighs less than its
>operating manual."
>-Terry Pratchett_________________________________________________
>   For list-related administrative tasks:
>   http://list.cs.brown.edu/mailman/listinfo/plt-scheme

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