How to create a function with a large number of variables, and get its gradient and Jacobian matrix，like following

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Xiaolei Du 2017-5-13

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https://ww2.mathworks.cn/matlabcentral/answers/340111-how-to-create-a-function-with-a-large-number-of-variables-and-get-its-gradient-and-jacobian-matrix

评论： Xiaolei Du 2017-5-15

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Alan Weiss 2017-5-14

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If you have a Symbolic Math Toolbox license, you can work along the lines of this example. Or of this example, which uses files rather than function handles.

Alan Weiss

MATLAB mathematical toolbox documentation

Thanks for your answers! When n is small,it is a not bad solution,however, when n is large,it will spend so much time, I need to get iteration solution, it may not be a good ideal, and function matlabFunction can convert it to a function handles, but it runs so much time. Best wish to you!

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