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Re: the competition's expm vs ours
From: |
Jordi Gutiérrez Hermoso |
Subject: |
Re: the competition's expm vs ours |
Date: |
Tue, 25 Nov 2008 10:56:10 -0600 |
2008/11/22 Marco Caliari <address@hidden>:
> In Octave expm there are first some "reductions" (trace reduction
> and balancing) and then Pade' approximation (8,8) with scaling and
> squaring. On the other hand, Matlab does not make any reductions
> and uses Pade' approximation (6,6) with scaling and squaring
Thank you for the explanation. Now, am I correct in inferring that the
extra steps that Octave does for this function (whose implementation I
think I finally found after Doxygenising the sources, yay!) produce a
noticeable performance hit as compared to Matlab's? Is this
performance hit acceptable?
- Jordi G. H.