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[Octave-bug-tracker] [bug #29768] logm fix
From: |
Jaroslav Hajek |
Subject: |
[Octave-bug-tracker] [bug #29768] logm fix |
Date: |
Mon, 21 Jun 2010 08:34:09 +0000 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100317 SUSE/3.5.9-0.1.1 Firefox/3.5.9 |
Follow-up Comment #14, bug #29768 (project octave):
Notice the huge increase of time consumed by th eschur decomposition itself.
This is because schur(..., "complex") is performed completely in complex
arithmetics, which is quite wasteful. A much better approach would be to start
with the real factorization and convert it to the complex one by factoring 2x2
diagonal blocks. Matlab even has a function for it, rsf2csf.
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