Re: [eigen] Usage of Eigen2 in a closed source application

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On Sat, Dec 13, 2008 at 12:37 PM, Benoit Jacob <jacob.benoit.1@xxxxxxxxx> wrote:
Hi Keir,

Thanks for answering Frank's e-mail.

2008/12/13 Keir Mierle <mierle@xxxxxxxxx>:
> that it didn't at the time have an SVD,

By the way, have you looked at reimplementing the SVD? I ask because
I'll have some time during the holidays and SVD is near the top of my
priority list, so if you haven't started it already then maybe I'll
try to do it.

I have looked at it, and started sketching some interfaces, but didn't end up with anything. I read the relevant parts of the Golub book. Actually implementing the SVD is not hard; the tricky part is to make the API reusable. The SVD algorithm breaks down into a few clear parts which would almost certainly be useful outside of the SVD itself.

I am not sure about the following things:
If we can figure these things out, I'd happily write some or all of the SVD for Eigen.


> Benoit, perhaps it is worth adding an entry to the license FAQ explicitly
> explaining that eigen can be used in commercial applications, provided
> source modifications to eigen itself are released back to the community?

Yes, i'll do it, good idea.



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