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User defined Jacobian in MATLAB's lsqnonlin

When using MATLAB's lsqnonlin function, I am trying to give a user-defined Jacobian matrix, as described in the documentation.

The output of the objective function used in lsqnonlin should be a vector of unsquared values, which, when squared and summed, give the en开发者_运维技巧ergy. However, should the Jacobian be the partial derivates of the squared or unsquared values?


The unsquared values is correct.

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