Page | HW | Class | Topic |
6 | 1.15 | 1.14 | Notations |
6 | 1.17 | Notations | |
6 | 1.18 | Notations | |
6 | 1.22 | 1.21 | Notations |
6 | 1.26 | Solution by inspection# | |
23 | 3.40 | 3.39 | Separation of variables# |
23 | 3.44 | 3.42 | Separation of variables# |
23 | 3.49 | 3.50 | Homogeneous equations |
23 | 3.52 | Homogeneous equations# | |
33 | 4.30 | 4.32 | Exact equations# |
33 | 4.34 | Exact equations# | |
41 | 5.35 | 5.34 | Linear equations# |
41 | 5.53 | 5.38 | Bernoulli equations# |
63 | 6.33 | Radioactive decay*# | |
64 | 6.59a | Air resistance*# | |
81 | 8.28 | 8.18 | Vibrational and growth type1# |
81 | 8.23 | 8.19 | Vibrational and growth type# |
81 | 8.24 | 8.21 | Vibrational and growth type# |
86 | 9.23 | Vibrational and growth type* | |
96 | 10.44 | 10.45 | Vibrational and growth, forced# |
96 | 10.46 | Vibrational and growth, forced# | |
96 | 10.52 | 10.47 | Vibrational and growth, forced# |
103 | 11.9 | 11.10 | Vibrational and growth, forced# |
103 | 11.14 | Vibrational and growth, forced# | |
103 | 11.26 | 11.25 | Vibrational and growth, forced# |
107 | 12.10 | 12.11 | Vibrational and growth, forced# |
122 | 13.40 | Spring mass system*# | |
198 | 22.22 | 22.12 | Solve as 22.12 (required)2 |
*: Recommended question. Not required if you know you can do it.
#: Make a graph. For problems with more than one unknown parameter, draw the solutions taking one parameter 1 and the rest 0.
1: Second double dot should be single dot.
2: Solution appears to be wrong.
Also solve the 4 questions below*:
y'' + 2xy' - 2y = 0.
Note that y=x is one solution. Solution:Also: Make exam 3 of 1998. Give yourself 50 minutes. Include your solutions with homework set I and grade yourself using the solutions on the web after you get it back.