Description: Math 228 - Differential Equations - is an introductory course in ordinary differential equations. It fulfills the same requirement as Math 224 for majors in mathematics, science, and engineering. Math 228 covers the same topics as Math 224, but in more depth.
Time and location: Math 228 is scheduled to meet MWF from 10:00 to 11:15, in Yost 102. Shortly before classes start, you should verify the class location. You can check that sort of detail in SIS or by using the Searchable Schedule of Classes at the registrar's web pages.
The first class is Tuesday January 16. The last class is Thursday April 26. The final exam is Thursday May 10 from 8 to 11.
Prerequisites: Math 227
Textbook: Differential Equations, by Blanchard, Devaney, and Hall (fourth edition). It is required. We will cover most of the first seven chapters. There will also be occasional hand-outs of class notes that you will be responsible for.
Website: The website of the course, with links to the syllabus, calendar, handouts, hw assignments, office hours, etc., is
Parts of the site are password protected. When asked to login, use your Case network id and password to access those parts. (The network id is usually initials followed by a number, like xyz999.)
Grading: There will be three tests during the term, each worth 100 points, a 40 point take-home project on numerical methods (chapter 7), and a 200 point final exam. (The final exam will be Thursday May 10 from 8 to 11.) Homework grades will have a slight impact on course grades; doing the homework will have a huge impact. The course grade is based almost entirely on the 540 points from the tests, project, and final exam. There is no provision for extra credit or other make-up work at the end of the semester.
Schedule: Here is a link to a calendar for the course.
Final exam: Thursday May 10 from 8 to 11.
Homework will be assigned and collected daily; it is important that you keep up with the work. Do the homework as it is assigned; and ask questions right away if you find there is something you do not understand. The easiest way to do poorly in this class is to get behind on the homework assignments. Solutions will be posted; as a consequence, the general rule is that homework that is turned in late will not be graded, unless there are special circumstances leading to prior approval from me. Each homework paper is graded on a 2 point scale: 2 means everything is right, 0 means everything is wrong, and any paper between these two extremes gets a grade of 1. A grade of 1 is what is normally expected, and is totally acceptable; do not interpret it as a 50%.
Here is a link to the list of homework assignments.
Midterm grades: Midterm grades will be assigned. They are not a prediction of a likely final grade. They are based solely on the work that has been completed at the time that they must be submitted; which usually includes no more than one third of the total work for the course. Their purpose is mainly to warn students who may not be doing as well in the course as they think.
The instructor is Michael Hurley.
Phone: 216-368-2885. Generally, email is a better way to reach me than phoning. A message can be left for me on voice mail at the number above, or if necessary a message can be left at the department office, 216-368-2880.
Office hours: My office is Yost 309.
My office hours for the spring 2018 semester are
Tuesdays, 1 - 2
Wednesdays, 1 - 2
Thursdays, 2 - 3 .
If you want to see me, don't feel that you have to wait for an office hour. Make an appointment, or just drop by my office, Yost 309.
Мне нужно немедленно ее увидеть. - Но, сеньор, она занята с клиентом. - Это очень важно, - извиняющимся тоном сказал Беккер. Вопрос национальной безопасности. Консьерж покачал головой: - Невозможно.