Assignment 9 (Due Monday 11/07/2005 before class)

Weight: 100 points. Please hand in via online dropbox.

• IMPORTANT: Use full recipe (contract, purpose, relevant type-based template, examples) and good style where applicable.
• Remember: Save your work in DrScheme as text, and hand it in as text. This avoids possible problems with the beta versions of DrScheme that some of you have downloaded.
• Be careful to do all subparts of a problem, unless otherwise indicated. Exercises end typographically with a dark square in the printed version and with a "hand" in the online version.
• The following problem numbers refer to the online version.
• Book problems:
  • Extended Exercise in Chapter 27.5 (all parts)