Introduction to Differential Equations
Autumn 2013
I've posted solutions to today's worksheet and challenge question on the materials page. Quiz 2 is now open; it asks about today's material. We didn't discuss semistable equilibrium solutions in class, but you can find the definition in one of your HW problems for 2.5 (and they are exactly what they sound like).
Are you hoping to get into this class? Read the "overloads" section of the syllabus to find out what you should do. I won't be admitting more than 50 students, but you still have a couple days to try to get in. For real-time enrollment information, click on the "Enrollment Summary" link in the upper right corner of the time schedule page.
In HW 1, you are sometimes asked to draw a slope field. In my opinion, it's fine if you do this on a computer. You can use this tool if you want. Just make a sketch of the resulting picture in your homework assignment.
Section 2.3: 4, 9, 13, 16, 19
Section 2.5: 3, 5, 7, 20, 22
Section 2.6: 2, 3, 7, 15, 19
Section 2.7: 2abd (skip c)