zamzar Posted October 22, 2015 Share Posted October 22, 2015 Hello, I want to know if there is a formula to find the higher partial derivative of an inverse of a matrix with multi index.You find the formula in attach fil.I need this formula this weekend because I have a work to finich it and it rest for me just this one.Thank you Link to comment Share on other sites More sharing options...
ajb Posted October 22, 2015 Share Posted October 22, 2015 Maybe not clever, but how I would start is by remembering that [math]AA^{-1} = 1[/math] and then use the chain rule to relate the derivatives of the inverse to the derivatives of the matrix. There maybe a clever way than this for the question you have asked. Link to comment Share on other sites More sharing options...
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