Math 134, Linear and Nonlinear Systems of Differential Equations
This is the webpage for Math 134, Winter 2020.
Section information:
- Instructor : Matthias Wink
- Discussion sessions :
Thursday 14:00 - 14:50 Geology 6704
- Teaching Assistant : Gyu Eun Lee
- E-mail : gyueun [dot] lee [at] math [dot] ucla [dot] edu
- Office : MS 3949
- Office hours : Thursday 11:30 - 13:30 and by appointment
- Course CCLE.
Policies:
- Homework submission and grading policies will follow the guidelines set on the syllabus, which you can find on CCLE. In particular, please read the part about late homework carefully.
- Formatting: all homework submissions must include your full name. Handwritten homework must be written using a blue or black pen or a pencil. Multiple pages must be bound with a staple or paperclip. Failure to abide by these carries a penalty of 1 point.
- I will also accept email submissions (to my email address), though I prefer hard copies whenever possible. Emailed homework is subject to the same deadline as hard copies. If you are submitting an electronic version of handwritten homework, please try to use a decent scanner - photographs of homework are often poor quality and difficult to read.
- Homework should be neat and legible. Illegible or incomprehensible portions of homework will be graded as if they do not exist.
- There will be problems asking you to draw a graph or diagram in the homework. These are among the most common and important problems in this course, so please try to do them very neatly. To a degree the grading of these problems is inevitably subjective, but here are the ingredients I consider necessary to score full marks on such a problem:
- identification of the important points on the diagram, and the correct local behaviors of the graphs around those points.
- identification of the correct asymptotic behaviors of the graph as the parameters tend toward relevant limits.
- clear labeling of axes.
- I am open to requests for extra office hours. If you wish to arrange extra office hours, please contact me at least 24 hours in advance to work out a time. (I may not respond to such requests if they are on very short notice.) Any office hours arranged individually will be announced and extended to the entire class.
Important points:
- Errata: Be aware that the book (and the solutions manual, if you choose to use it) contains errors. There is an official list of errata here. If you are ever confused about something in the textbook or solutions manual, try to check here first.
- Outside sources/collaboration policy: Naturally, there are solutions to the homework exercises floating around on the internet, and there is also a widely available solutions manual. I am not opposed to your use of outside sources. Ultimately, what matters is that you learn the material, no matter the method you use to get there. However, as a matter of principle and honor, you should always cite your sources. You will never be penalized for doing so, and in fact you will earn my respect. That being said, it is strongly recommended that you avoid copying such solutions word for word, especially given that I have found in past experience teaching this course that solutions you find on the internet are not necessarily correct or complete by my standards. Since the grading policy allows for you to make mistakes without penalty, there is also very little value in copying answers from the internet or solutions manual verbatim - try to digest and rephrase the solutions in your own words whenever possible. Similarly, I encourage collaboration with your peers on your homework, and you should acknowledge your collaborators on all of your assignments.
Announcements:
- (2019.04.02) Office hours and homework policy is now up.
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Important links: