[SciPy-user] Interaction of sparse and dense matrices in scipy

Nils Wagner nwagner at mecha.uni-stuttgart.de
Mon Feb 20 08:15:06 CST 2006


Robert Cimrman wrote:
>Nils Wagner wrote:
>
>  
>>dense                           sparse
>>
>>dot(C,D)                      A*B
>>linalg.norm(C)            linalg.norm(C.todense())
>>linalg.kron(C,D)           ?
>>identity(n), eye(n)           
>>    
>
>Hi Nils,
>I have just added speye, spidentity to the scipy.sparse (using spdiags). 
>You can test them in svn.
>
>r.
>
>  
Hi Robert,

Great ! Thank you very much ! :-)

Nils

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