- [Fri Apr 29 10:15 2016]

Sample Quiz 4 posted. - [Fri Apr 29 10:15 2016]

Homework 12 posted. - [Fri Apr 22 10:24 2016]

Homework 11 posted. - [Thu Apr 21 12:46 2016]

Quiz 4 is postponed by one week. It will be held on Tuesday, May 3 instead of Tuesday, April 26. This is so we can have the quiz on counting. - [Thu Apr 14 12:24 2016]

Homework 10 posted. - [Thu Apr 07 12:24 2016]

Homework 9 posted. - [Tue Mar 29 15:20 2016]

Prof. Chang will not hold office hours on Wednesday March 30. - [Tue Mar 29 12:50 2016]

Homework 8 posted. This is due**next Thursday**(April 7). Homework 7 is due this week. - [Fri Mar 25 15:34 2016]

Homework 7 posted. - [Tue Mar 22 15:11 2016]

Sample midterm exam posted. - [Thu Mar 03 21:20 2016]

Sample Quiz 2 posted. - [Thu Mar 03 21:10 2016]

Homework 6 posted. - [Tue Mar 01 15:11 2016]

Slides from today posted. - [Mon Feb 29 15:00 2016]

For Homework 5, Question #1, we need to make the additional assumption that the graph*G*has at least two vertices. Otherwise a graph with a single vertex and zero edges is technically connected and has no cycles but does not have any vertices with degree 1. - [Thu Feb 25 22:15 2016]

Homework 5 posted. - [Thu Feb 18 08:50 2016]

Homework 4 posted. - [Thu Feb 18 12:40 2016]

Proof Methods writeup posted. - [Thu Feb 18 12:40 2016]

Sample Quiz 1 posted. - [Sun Feb 14 13:10 2016]

Prof. Chang's**office hours**on Monday, February 15 has been moved to 2:30pm - 4:00pm (instead of 1:30pm - 3:00pm). This is a one-time change. - [Thu Feb 11 08:50 2016]

Homework 3 posted. - [Tue Feb 09 12:45 2016]

The syllabus after Spring Break has been revised. The midterm exam is a week earlier. Homework assignments will be due on Thursdays and Quizzes on Tuesdays (same as before break). Please update your calendars. The revised course description and syllabus are available in PDF. - [Thu Feb 04 15:50 2016]

A Case Study of Toyota Unintended Acceleration and Software Safety by Philip Koopman, Associate Professor of Electrical and Computer Engineering at Carnegie Mellon University. A key point in these slides is that the Electronic Throttle Control System in Toyota cars (circa 2008) uses a main CPU and a monitor chip, both of which contain software. For our class, the point is that "it is impracticable to test everything".Compare this with the prior episode of unintended accelaration of Audi 5000 cars in 1982-83. This report from the Center for Auto Safety indicates that the suspicion was that the problem was mechanical.

- [Thu Feb 04 15:20 2016]

Here are articles on the**Ham Sandwich Theorem**on Wikipedia and Wolfram MathWorld. The Wikipedia article has a version in discrete math and computational geometry. - [Thu Feb 04 12:25 2016]

Homework 2 posted. - [Wed Feb 03 08:45 2016]

Question #5 on Homework 1 should look like this:The bars over the sets in parts c, d and e mean complement. The complement of a set is everything that is not in the set. So, for example, the complement of A is all the real numbers that are less than -3 or greater than 0.

- [Tue Feb 02 15:00 2016]

Fixed symbolic link for`http://umbc.edu/~chang/cs203/`. That short cut should take you to the right place now. - [Tue Feb 02 08:45 2016]

Course description and syllabus are available in PDF, if you lost your copy or didn't get one. - [Tue Feb 02 08:45 2016]

Please find your "homework hash" number in the Grade Center on Blackboard. Leave the back of the last page of your homework assignment blank. Write this "homework hash" number on the back of your homework assginment in gigantic numbers (> 2 inches). Homework will be returned to you in class, face down. You can find your homework using this number. - [Tue Feb 02 08:45 2016]

Blackboard for our class is now available. We will only use Blackboard for grades. All announcements and assignments will be posted to this website. - [Thu Jan 28 08:25 2016]

Homework 1 posted. - [Tue Jan 26 09:00 2016]

The**first quiz**is on Tuesday, February 23.

Mark your calendars with the dates of the in-class quizzes and exams from the syllabus! - [Tue Jan 26 09:00 2016]

Web page up.

Last Modified: 24 Jan 2016 20:45:06 EST by Richard Chang to Spring 2016 CMSC 203-06 Homepage