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Eigenvalues/eigenvectors of hermitian matrices

PostPosted: Fri Dec 19, 2014 9:55 pm
by Boris_MV
Hi there,

Please help. I was testing calculation of eigenvectors/eigenvalues with ZHEEV on a 3x3 hermitian matrx and got this strange error: all three eigenvectors are OK, but one eigenvalue is WRONG!
What is going on here?
Short Fortran code and the result are in the attached txt file. Thanks.