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The example 'Solve Partial Differential Equation with LBFGS Method and Deep Learning' doesn't work because the supporting file 'paramsStructToVector' function.

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parametersV = zeros(numParamsTotal,1,'like',parameters.(parameterNames{1}));
The main reason is this code.'parameters.(parameterNames{1})' is a struct lead to the zeros function input specification is not met

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James Gross
James Gross il 24 Ott 2022
Hello,
The paramsStructToVector helper function converts a struct of learnable parameters to a vector. However, it looks like you have specified parametersV as a vector using zeros.
You will need to specify this variable as a struct before you can use this helper function. The parameterVectorToStruct helper function can be used to convert a vector of parameters with specified names and sizes to a struct.
I hope this information helps! If you need more assistance, could you please confirm if the example as written (i.e. without modification) works on your machine and if you have modified the example in any way? If so, could you please provide additional information as to how you have modified the example (perhaps some example code)?
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富坤 陈
富坤 陈 il 25 Ott 2022
Hello! Dear James Gross,
Thank you very much for your help. I have found the problems and I have solved them.
The main question is that I copied the wrong codes from the other example 'Solve Partial Differential Equations Using Deep Learning'. I think these two examples in the first half using the same codes.
Thanks again!

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