Re: [Toon-members] Ful SVD Support

[Georg Klein]

On 25 Jan 2010, at 05:55, Gabriel Nützi wrote:

> Hello all,
>
> I am writting a full SVD support, meaning that it calculates the  
> whole U, and V matrices, which is currently not implemented in  
> TooN::SVD

Do you mean for non-square matrices? I think either SVD or GR_SVD or  
both can do this already if you pad the input matrix with zeros to  
make a square matrix.

> because I am not the best Template C++ geek, I am sending the code  
> for SVD.h when I am finished so would be cool if someone can quickly  
> look over the structure...
>
>
> My Question:
>
> return Matrix<Rows, Min_Dim, Precision, Reference::RowMajor>   
> (   my_square.my_data, my_square.num_rows(),  
> my_square.num_cols()    );
>
> What does this  do? hehe, I have no Idea? A return value with 3  
> parameters?¿¿?? =)??¿
> What is this C++? I probably have never seen such a thing....

That's returning a single matrix via a 3-argument constructor.