[eigen] Feature request for array

["Jinglei Hu" <jingleihu@xxxxxxxxx>]

Hi,

 

Eigen is really a nice piece of work. Thanks!

 

In scientific computing, one and two (or even higher) dimensional arrays are widely used. It would be nice to have the following function:

 

1dArray A(10), B(10), C(10);

A(4:10) = B(4:10) + C(4:10);

 

I do not know the professional term for this, maybe stencil? In fortran, this function for array is built-in. Blitz++ provides such function for array and claimed performance in par with fortran. How about incorporating this staff in Eigen?

 

Cheers,

Jinglei