[plt-scheme] Novice needs help writing function

From: Noel Welsh (noelwelsh at gmail.com)
Date: Sat Dec 29 08:42:28 EST 2007

The design recipes are a (if not the) core part of HtDP.  HtDP is the
only book I know that takes designing programs from a dark and
mysterious art to a systematic process anyone can apply.  This is a
really really powerful idea.  So, if you haven't worked through the
design recipe, do so.  If you have, then you might say what
difficulties you are having applying the recipe.


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