Re: [eigen] Is this a bug with Visual Studio ? |

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*To*: eigen@xxxxxxxxxxxxxxxxxxx*Subject*: Re: [eigen] Is this a bug with Visual Studio ?*From*: Yann Salaun <yann.salaun@xxxxxxxx>*Date*: Wed, 20 Mar 2013 18:20:07 +0100 (CET)

The data structure that I need is a 2D array of complex matrices (all the same size). The size of the main array can easily reach 1000 * 100, and the maximum size of the matrices is 16. The main operation will be to compute the inverse of each matrix. Thanks a lot for your time and for any suggestion. Yann ----- Original Message ----- > From: "Gael Guennebaud" <gael.guennebaud@xxxxxxxxx> > To: "eigen" <eigen@xxxxxxxxxxxxxxxxxxx> > Sent: Wednesday, March 20, 2013 5:56:50 PM > Subject: Re: [eigen] Is this a bug with Visual Studio ? > > Currently I cannot really tell. I guess it depends a lot on what you > really need in term of dimensionality (apparently 3D), and > operations? > (slicing in all dimension? tensor products ?) > > gael > > On Wed, Mar 20, 2013 at 5:49 PM, Yann Salaun <yann.salaun@xxxxxxxx> > wrote: > > Thanks for your answers. I've read the following thread: > > http://listengine.tuxfamily.org/lists.tuxfamily.org/eigen/2011/02/msg00045.html > > What is in your opinion the best way to manipulate multidimensional > > arrays > > with Eigen? > > > > Yann > > ________________________________ > > > > From: "Gael Guennebaud" <gael.guennebaud@xxxxxxxxx> > > To: "eigen" <eigen@xxxxxxxxxxxxxxxxxxx> > > Sent: Wednesday, March 20, 2013 5:26:21 PM > > > > Subject: Re: [eigen] Is this a bug with Visual Studio ? > > > > This is indeed very experimental, and I doubt we can go very far > > without some significant change in the definitions of Scalar and > > RealScalar. In the meantime you can try to add : > > > > static inline RealScalar epsilon() { return > > NumTraits<RealScalar>::epsilon(); } > > static inline RealScalar dummy_precision() { return > > NumTraits<RealScalar>::dummy_precision(); } > > > > line 143 in src/Core/NumTraits.h > > > > and let us know how far you can go. > > > > gael > > > > On Wed, Mar 20, 2013 at 5:12 PM, Christoph Hertzberg > > <chtz@xxxxxxxxxxxxxxxxxxxxxxxx> wrote: > >> On 20.03.2013 17:07, Yann Salaun wrote: > >>> > >>> No, actually I mean > >>> > >>> Array<ArrayXXcd, 1, Dynamic> foo; > >>> > >>> but I have the same error with the simpler case. > >> > >> > >> Arrays of Arrays (as well as Matrices of Matrices) are very > >> experimental > >> at > >> the moment. There is an ongoing discussion about sparse matrices > >> consisting > >> of block matrices here: > >> > >> > >> http://listengine.tuxfamily.org/lists.tuxfamily.org/eigen/2013/03/msg00039.html > >> > >> Christoph > >> > >> -- > >> ---------------------------------------------- > >> Dipl.-Inf., Dipl.-Math. Christoph Hertzberg > >> Cartesium 0.049 > >> Universität Bremen > >> Enrique-Schmidt-Straße 5 > >> 28359 Bremen > >> > >> Tel: +49 (421) 218-64252 > >> ---------------------------------------------- > >> > >> > > > > > > > > >

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