Timeline for Applying rules with functions to expressions with derivatives
Current License: CC BY-SA 3.0
14 events
| when toggle format | what | by | license | comment | |
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| Sep 20, 2013 at 17:58 | vote | accept | jlperla | ||
| Sep 19, 2013 at 21:08 | answer | added | Jens | timeline score: 2 | |
| Sep 19, 2013 at 20:47 | comment | added | jlperla | I checked the other links. They look related, but I can't figure out how to apply them to my problem. | |
| Sep 19, 2013 at 19:43 | history | edited | jlperla | CC BY-SA 3.0 |
Added a few reasons why I want to use rules.
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| Sep 19, 2013 at 19:31 | comment | added | jlperla | See my edits to the question. It definitely solves the exact problem, but I left off part of the motivation for using rules. | |
| Sep 19, 2013 at 19:19 | comment | added | Mr.Wizard | @Blackbird Alright then. | |
| Sep 19, 2013 at 19:17 | comment | added | Pankaj Sejwal | @Mr.Wizard : You have a permanent go ahead from my side always :) | |
| Sep 19, 2013 at 19:09 | comment | added | Mr.Wizard | @Blackbird I went ahead and posted it. If you choose to post I will delete mine. | |
| Sep 19, 2013 at 19:09 | answer | added | Mr.Wizard | timeline score: 3 | |
| Sep 19, 2013 at 19:03 | comment | added | Mr.Wizard | Related, possible duplicates: (7876), (6089), (27230) -- have you looked at these? | |
| Sep 19, 2013 at 18:57 | comment | added | Pankaj Sejwal |
Instead of using Replace simply use function f[c_] := a c, you will get same result.
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| Sep 19, 2013 at 18:50 | comment | added | jlperla |
That does it for this example. The problem is that in reality I am applying this substitution to pretty complicated expressions where I want to write out the expression properly and then do the substitution. (e.g. something like exp = D[f[c],c] + a c / (D[f[c],c,c]^2); exp //. fsub; That approach would force me to re-write the entire expression with the substitutions embedded throughout.
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| Sep 19, 2013 at 18:47 | comment | added | Pankaj Sejwal |
May be this D[f[c] //. fsub, c] //. fsub.Raise it to power or anything else to see if its done or not.
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| Sep 19, 2013 at 18:28 | history | asked | jlperla | CC BY-SA 3.0 |