Summary: While your work on lab writeup 1 was generally acceptable, I think you may benefit from some general discussion of my expectations on that writeup and some key problems.
Most of you got most of the problems correct. As I warned you at the start of the semester, such work probably earned you a B (or lower, if you made some mistakes). Experience shows that people do better on exams than on homework assignments in my class.
We'll talk more about preconditions and postconditions next week. For now, note that your postcondition should say something fairly formal about the result. For example, a postcondition for
quadratic-root should say what it means to be a root (result is a number such that a*result*result + b*result + c = 0).
Please name your procedures what I tell you to name them. At times, I may write automated testing programs that will only work if you follow the designated naming conventions.
You will also find it helpful to name numeric constants, such as
pi, so that your reader doesn't suddenly wonder why you're dividing 22 by 7 or using 6.28.
If you don't follow these guidelines, DrScheme is likely to complain when I try to execute your program. Your email program is also likely to wrap the content, which screws everything up.
Monday, 22 September 2003 [Samuel A. Rebelsky]
I usually create these pages
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