[plt-scheme] Re: Question

While we all welcome homework questions here, it would help if you could
mention where you got stuck, so that we can better assist you.  If we
just give you the answer, you will not learn nearly so much as if you
let us give you hints so that you can try to figure the solution out
yourself.

Where did you get stuck?

Benjamin L. Russell

陈于康 wrote:
> hello !
> 
> Can anyone can tell me the answer to Exercise 21.1.3
> in HTDP.. I can't figure it out.
> 
> THANKS.....
> 
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