Timeline for Taking matrix derivative with MATLAB or Wolfram Alpha [closed]
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 1, 2014 at 17:40 | history | closed |
abx José Figueroa-O'Farrill Will Jagy Chris Godsil Suvrit |
Not suitable for this site | |
| Sep 1, 2014 at 11:24 | answer | added | Peter Michor | timeline score: 5 | |
| Sep 1, 2014 at 11:24 | answer | added | Carlo Beenakker | timeline score: 5 | |
| Sep 1, 2014 at 10:21 | comment | added | Carlo Beenakker | en.wikipedia.org/wiki/Matrix_calculus#Other_matrix_derivatives | |
| Sep 1, 2014 at 10:16 | review | Close votes | |||
| Sep 1, 2014 at 17:41 | |||||
| Sep 1, 2014 at 9:52 | comment | added | Joonas Ilmavirta | Can you elaborate on what kind of an object you want the derivative to be? If you differentiate a scalar valued function $f(X)$ with respect to a matrix $X$, the derivative $Df(X)$ is the matrix satisfying $f(X+Y)=f(X)+\text{tr}(Y^TDf(X))+o(1)$ as $Y\to0$. Is this the kind of derivative you have in mind? If yes, then $Df(X)_{ij}=\partial f(X)/\partial x_{ij}$, and this matrix can be formed with Mathematica at least. | |
| Sep 1, 2014 at 9:36 | history | asked | user51031 | CC BY-SA 3.0 |