COS250 SPRING 2004 HW #1 Due Thursday 1/22/04
p.26 Problem 31,        20 points
p.47 Problem 10,        15 points
p.48 Problem 13,        15 points
p.48 Problem 17,        20 points
p.48 Problem 19,        20 points
Calculator Problem (see below), 10 points
********** Notes *********,
1.   For ALL programs be sure to include comments and an English
     explanation of how the program works. Be sure to CLEARLY explain
     the key ideas.

2.   For Problem 31 on p.26, be sure to use a property list instead of
     global variables to store any properties of the calculator that
     you need to use on a regular basis.

3.   CALCULATOR PROBLEM. This means writing a program that accepts an
     arbitrary line of input and which returns the correct
     arithmetical result. As mentioned in class, use the READLIST and
     RUN commands. There are several easy ways to do this, so if you
     are spending a lot of time on this problem you need to focus on
     the fact that this is Logo and NOT C++.

     NOTE -- THIS IS NOT PROBLEM 31 IN CHAPTER 0! You are doing that
     program also for this assignment -- you are being asked to solve
     the problem of creating a text-based calculator using the full
     power of Logo.

4.   For all programs, you should supply a printed listing of any
     code, a printout showing the results, and anything else that is
     requested of you. Be sure to read the questions and problems
     carefully. HANDWRITTEN CODE OR OUTPUT WILL NOT BE ACCEPTED.

5.   You can use a DRIBBLE file to showing your function/procedure
     definitions and sample runs. You can probably keep all of this in
     one workspace. Add comments to your files as needed and be sure
     to include some sample runs for EACH problem. You use DRIBBLE in
     the form

                             DRIBBLE "FileSpec


6.   When running WinLogo on the network, make sure you instruct it to
     write on your own disk. You cannot write on the network system
     disks.

7.   If you need help, send me e-mail at markov@maine.edu, or contact
     the grader for the course.