Timeline for Looking for ideas concerning the teaching of lower-division differential equation courses...
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 3, 2020 at 18:42 | comment | added | LSpice | How do you draw flow lines for complex $\alpha$? It seems like that'd be a 4D picture. | |
| Jul 4, 2011 at 3:14 | comment | added | Phil Isett | I agree with Mariano's comment on the question that it is strange to accept an answer so fast. I would suggest withdrawing the answer so that other people can share their ideas because I think there should be plenty more. | |
| Jul 4, 2011 at 2:38 | comment | added | Viktor Bundle | Autonomous equations seem like a good source for this type of problem. You could ask to show that a solution of $u''=|u|$ will be non-negative if the initial position and velocity are non-negative. | |
| Jul 4, 2011 at 2:06 | vote | accept | Viktor Bundle | ||
| Jul 4, 2011 at 2:02 | history | answered | Phil Isett | CC BY-SA 3.0 |