[Dune] leftmultiply function

[arya fallahi]

Dear Dune developer team,

I just figured out that the reason can be the change in size of the matrix and the need for allocating memory. Let me ask my question in a different way. I have two rectangular dynamic matrices (Dune::DynamicMatrix) and want to multiply them with each other. How can I do that using the available functions (leftmultiply and leftmultiplyany) in dune?

Thanks,
Arya


On Jan 28, 2011, at 2:19 PM, arya fallahi wrote:

> Dear Dune developer team,
> 
> I am trying to multiply to rectangular matrices using the Dune::DenseMatrix class. However, I saw in the source code that one can only use leftmultiply and rightmultiply functions for square matrices. 
> assert(M.rows() == M.cols() && M.rows() == rows());
> Is there a particular reason for that? why don't you remove the first condition and let dune fulfill the multiplication also for rectangular matrices??
> 
> Thanks,
> 
> Arya Fallahi, 
> Dr. sc. techn.  ETH, 
> Computational Accelerator Scientist 
> Paul Scherrer Institute (PSI), 
> CH-5232 Villigen, Switzerland, 
> arya.fallahi at psi.ch, 
> +41(0)56 310 50 17
> 
> 
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