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Re: Bag in orth function if there is vector with big norm
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From: |
Susi Lehtola |
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Subject: |
Re: Bag in orth function if there is vector with big norm |
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Date: |
Mon, 12 Aug 2013 23:42:49 +0300 |
On Mon, 12 Aug 2013 12:29:36 +0300
Polishchuk Vldimir <address@hidden> wrote:
> I find bag in orth if there is vector with big norm (for example
> 10^30) orth return less vectors then it need return. I send test it
> test that. Possible decision of this bag divide all vector by it norm
> (any) if it not 0.
That's not a bug. See the man page:
-- Function File: orth (A)
-- Function File: orth (A, TOL)
Return an orthonormal basis of the range space of A.
The dimension of the range space is taken as the number of singular
values of A greater than TOL. If the argument TOL is missing, it
is computed as
max (size (A)) * max (svd (A)) * eps
--
Susi Lehtola
Fedora Project Contributor
address@hidden