| Re: [eigen] Inverse of an array through .matrix() |
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- To: eigen@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [eigen] Inverse of an array through .matrix()
- From: Gael Guennebaud <gael.guennebaud@xxxxxxxxx>
- Date: Sun, 27 Jun 2010 15:16:57 +0200
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On Sun, Jun 27, 2010 at 3:13 PM, Gael Guennebaud
<gael.guennebaud@xxxxxxxxx> wrote:
> This
>> works:
>>
>> ArrayXXf xx = m.matrix().inverse().array();
for the record, m.matrix().inverse().array() creates one useless
temporary (m.matrix().inverse() has to be evaluated before being able
to view it as an array), and so a better solution is:
ArrayXXf xx;
xx.matrix() = m.matrix().inverse();
gael