Re: Calling directly blas functions in Oct file

[N]

> Hi,
> I have to do a lot of matrix operations that involve real symmetric
> matrices, and it would be much faster to store the lower triangular part in
> a vector form. I understand that blas operations can work directly with
> these packed forms. But as far as I know octave functions require the full
> matrices for operations such as matrix multiplications, am I wrong?
> I was wondering if there is a simple way to call blas functions directly
> from Oct files (I have some experience with them, but only c++ code). If
> someone has an example of these they could provide I think I could work
> from that. Any help on this direction will be appreciated!
> Thank you very much,
> Nicolas

Maybe the sparse matrices functions will help 
https://octave.org/doc/v4.0.3/Creating-Sparse-Matrices.html


Regards Nicklas SB Karlsson