How to find the numerical partial derivative of matrix

조회 수: 11 (최근 30일)
Evans Gyan
Evans Gyan 2019년 3월 14일
댓글: Nadya Mawuntu 2022년 5월 17일
Hello Matlab Community
I want to find the partial differentiaton of a particular column from a matrix. For instance
D =
0.9293 0.4733 0.9172 0.5678 0.9340
0.3500 0.3517 0.2858 0.0759 0.1299
0.1966 0.8308 0.7572 0.0540 0.5688
0.2511 0.5853 0.7537 0.5308 0.4694
0.6160 0.5497 0.3804 0.7792 0.0119
f =
0.4733
0.3517
0.8308
0.5853
0.5497
D is a 5x5 matrix and f a 5x1 matrix obtained from the second column of D.
I want to compute a partial differentiation of D with respect to f or the second column. Your input is highly appreciated. Thanks in advance
  댓글 수: 3
Evans Gyan
Evans Gyan 2019년 3월 14일
it can be defined mathematically as
δD/δf
Torsten
Torsten 2019년 3월 14일
Interesting. Can you give an example ?

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Star Strider
Star Strider 2019년 3월 14일
See if the gradient (link) function will do what you want.
You will probably have to experiment with it, since I do not understand what you want to do (i.e. how you intend to calculate the derivative).
  댓글 수: 3
Star Strider
Star Strider 2019년 4월 29일
My pleasure.
If my Answer helped you solve your problem, please Accept it!
Nadya Mawuntu
Nadya Mawuntu 2022년 5월 17일
Could you please share the code solution using gradient? thank you.

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