Re: subsetting matrices

[heberf]

On Tue, 26 Oct 1999, John W. Eaton wrote:

> On 26-Oct-1999, address@hidden <address@hidden> wrote:
> 
> | One of the beautiful things about octave is the ability to subset a matrix
> | like
> | 
> |     Q = A(a:b,c:d);
> | 
> | Now I need to do this in a dld (.oct file).  Anyone know how to do this?
> 
> It depends.  What is the type of A?  Is it an octave_value object or a
> Matrix, or what?

It's a matrix.  I need to perform some operations on blocks of a matrix.
This operation gets done very frequently in the optimization I'm doing so
I'm trying to speed it up with a .oct file.

Heber

> 
> jwe
> 



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