Timeline for Simple ways to evaluate a derivative at a point?
Current License: CC BY-SA 3.0
15 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 10, 2012 at 20:44 | comment | added | chris | I ve updated my answer thanks to the help of @rojo so that the output looks exactly as you had typeset. | |
| Nov 10, 2012 at 19:43 | history | tweeted | twitter.com/#!/StackMma/status/267351964059332608 | ||
| Nov 10, 2012 at 18:58 | comment | added | JohnD | @VitaliyKaurov: I do not know why they make that line under the second box of code behave the way it does. | |
| Nov 10, 2012 at 18:55 | vote | accept | JohnD | ||
| Nov 10, 2012 at 18:46 | answer | added | Rojo | timeline score: 6 | |
| Nov 10, 2012 at 18:22 | comment | added | Vitaliy Kaurov | Related: Wolfram Blog By the way, do you understand why there is contrast in behavior? | |
| Nov 10, 2012 at 17:55 | comment | added | Jens | You may find this question useful, too. | |
| Nov 10, 2012 at 17:37 | answer | added | chris | timeline score: 17 | |
| Nov 10, 2012 at 17:29 | comment | added | JohnD | @chris: Indeed I think you have. I re-edited it to show what I do, leaving you room to formally answer the question with what you had. I just did not know that Derivative[...] functioned differently than using the partial symbol in the palette (at least in the sense here). | |
| Nov 10, 2012 at 17:28 | history | edited | JohnD | CC BY-SA 3.0 | dispayed partial notation as intended |
| Nov 10, 2012 at 17:21 | comment | added | JohnD | @J. M.: I see what you mean, but unlike the first answer in the link I don't want to appeal to limits since we aren't emphasizing what a partial derivative is but rather just need to evaluate partials at values to accomplish other things. The second answer does address the issue, but I'd say the code is more complicated than a replacement rule. YMMV of course. | |
| Nov 10, 2012 at 17:20 | comment | added | chris | @texasAUtiger I have edited your question; but in the process may be answered it? In other words what's wrong with Derivative[1, 0][u][2, y]? | |
| Nov 10, 2012 at 17:18 | history | edited | chris | CC BY-SA 3.0 | deleted 66 characters in body |
| Nov 10, 2012 at 17:09 | comment | added | J. M.'s missing motivation | Seems to be a dupe of this; anyway, look up SeriesCoefficient[]. | |
| Nov 10, 2012 at 17:04 | history | asked | JohnD | CC BY-SA 3.0 |