[Tutor] extract a submatrix

Dave Angel davea at ieee.org
Mon Jul 12 13:17:13 CEST 2010

Bala subramanian wrote:
> Friends,
> Excuse me if this question is not appropriate for this forum. I have a
> matrix of size 550,550. I want to extract only part of this matrix say first
> 330 elements, i dnt need the last 220 elements in the matrix. is there any
> function in numpy that can do this kind of extraction. I am quite new to
> numpy. How can do the same ?
> Thank you,
> Bala
I don't know numpy, and it probably would be better to use that forum.  
But there are several people here who do, and one of them will probably 

However, I would point out that if you fetch the first 220 elements of a 
550x550 matrix, you'll have 302170 elements left.


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