About "eigs" function

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Achraf EL OMARI
Achraf EL OMARI 2020-7-2
编辑： Achraf EL OMARI 2020-7-4
Hello every one,
I want to run an LLE code when I need to use "eigs" function to solve an eigenproblem.
This is the syntax that I use in Matlab Online :
[YT, ~] = eigs(M, d+1, 0, 'Display', 0, 'StartVector', ones(size(M, 1), 1));
The problem is that I obtain a new result each time the code is executed.
If you can help me to overcome this problem ?
Best regards,

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回答（1 个）

Christine Tobler
Christine Tobler 2020-7-4
This was the case for old EIGS, it would use some random restart vectors that changed on every run. In the version of EIGS that supports the 'Display' and 'StartVector' options, the output should always stay the same.
If you're able to, could you share the matrix M and input d?
  1 个评论
Achraf EL OMARI
Achraf EL OMARI 2020-7-4
编辑：Achraf EL OMARI 2020-7-4
Hello Christine Tobler,
First of all, thank you very much for your answer.
You can find my matrix in the attached file "M.mat".
d=2;
My matrix M is a sparse matrix of size 2000 x 2000, real and symmetric.
Best regards,

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