I'm using Armadillo in C++. I computed the eigenvectors and eigenvalues of a matrix A using the eig_sym function. Now I'd like to multiply an eigenvector v by its corresponding eigenvalue to compare it with A*v just to see that it worked correctly.
How do I do that? Eigenvalues are sorted in ascending order but the indices of the eigenvectors seem to not correspond to their corresponding eigenvalue.
Eigenvector and corresponding Eigenvalue in Armadillo
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