[plt-scheme] htdp section 17.7

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
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 185 bytes
Desc: not available
URL: <http://lists.racket-lang.org/users/archive/attachments/20060706/98a8fae5/attachment.sig>