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DGEEV question

PostPosted: Wed May 15, 2013 5:43 pm
by DannyDio
Hello,

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?

Thanks!
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-Danny greenavis

Re: DGEEV question

PostPosted: Thu May 16, 2013 11:21 pm
by CyLith
DGEEV already uses only real arithmetic. Internally it performs a real Schur decomposition with 1x1 or 2x2 blocks on the diagonal.