eigenvectors-from-eigenvalues

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Hi! Thanks for this code.

I find that the sign information is lost when the original vector elements are recovered because ~square~ absolute operation makes ~every real~ the complex number positive.

Is there any way we can recover the original eigenvectors' signs also without using original eigenvectors.sign() (from PyTorch) * square root of eigenvectors (deduced from eigenvalues)? Because that'd be really helpful!

Regards Rahul Bhalley