[racket] cool things in Whalesong, part 2

From: Danny Yoo (dyoo at cs.wpi.edu)
Date: Tue Mar 20 19:05:13 EDT 2012

On Tue, Mar 20, 2012 at 6:40 PM, Matthias Felleisen
<matthias at ccs.neu.edu> wrote:
> You know this is an exercise in '2e' :-)

Oh, I didn't know that!  HTDP 2e is getting large, and I scanned for
it but couldn't find what you're referring to.  Can you give a URL to
the exercise?

Posted on the users mailing list.