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# Lingling Fan

Last seen: 1年以上 前 2019 年からアクティブ

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fsolve residue almost zero error, I calculate and find errors
Hi, fsolve gives me zero error. But I find the function is not zero with the solution. Where I could check? Thanks!

1年以上 前 | 1 件の回答 | 0

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Null after solving for unknowns by setting the matrix det as zero
follow up: I improved the code by putting the analytical solution function of the determinant inside the eigenvector null sol...

3年以上 前 | 0

Null after solving for unknowns by setting the matrix det as zero
Hi community, I attach my code here. I try to solve kz by setting the matrix T_mat det as zero. val_arr_sol is the solution. ...

3年以上 前 | 1 件の回答 | 0

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simplify symbolic expression with complex, square, sqrt. & Assume commutation in Matlab
Hi team I find some symbolic expression can't be simplified by the simplified by matlab function. Like this, the long symbol...

3年以上 前 | 1 件の回答 | 0

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syms wrong message, definition
As is shown in this graph, whenever I use some "syms" command, it goes wrong. How could I solve it? Thank you in advance

3年以上 前 | 1 件の回答 | 0

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Symbolize but the solutions number of the equation changed
To solve the det A ==0 equation, if I symbolize eta_yy, eta_xy..., I get q_sol as 4*1. But if I take eta_yx, eta_xy... as a nu...

4年弱 前 | 1 件の回答 | 0