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I would like to use lapack to find the eigendecomposition of a relatively small (usually no more than 100x100) non-symmetric matrix whose eigenvalues are guaranteed to be real. Is there any way to speed up DGEEV by using real arithmetic instead of (what I assume it to be using) complex arithmetic?
Last edited by DannyDio
on Sat May 18, 2013 6:34 pm, edited 2 times in total.
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DGEEV already uses only real arithmetic. Internally it performs a real Schur decomposition with 1x1 or 2x2 blocks on the diagonal.
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