Homework 1

Due: 11:00am, Wed Jan 13, 2009

100 points

For this assignment, make sure that DrScheme is using the Language Level Beginning Student. Future assignments will use other levels. It is always the case that your assignment is correct only if you use the correct level. Only switch levels when we ask you to do so, and check your language level setting before you start working in DrScheme.

* Read Recipe Guidelines for "Chapter 2 onwards". Correctness of your code is assumed. Most of the grade is on following the recipe.

* Book problems: 8.3.1, 8.3.2, 9.3.3, 9.5.2, 9.5.7, 10.1.5, 10.1.7

* NB: Be sure to do all the assigned parts of each problem. In the book, each problem ends with a block icon. Online, each problem ends with a hand icon.

* Read chapter 8 very carefully before doing the problems from that chapter. This chaper is not padded with lots of wordy examples. In writing hand evaluations for problems 8.3.1 and 8.3.2, follow the same format as the examples in Section 8.3, which is shown in more detail in the hand-evaluation examples posted on the course wiki.

* In writing programs, follow the recipe carefully and in the correct order. This means, write down the purpose, contract, develop examples (hand in 5), write the actual function, and include illustrative test cases for the function (using at least the examples you developed ahead of time). The examples should illustrate the output you expect, and the test cases should produce the actual output (they should not be commented). Add notes at the end of each problem to indicate wether the examples actually helped you in catching bugs.

Submit your homework using SVN (which will be demonstrated in lab).

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