On 2010-03-09 00:14 AM, Victor Eijkhout wrote:
I can't find any detailed information about scipy.sparse.

The place to ask would be on scipy-user:

  http://www.scipy.org/Mailing_Lists

My specific question: what does "for x in A" give me when A is a sparse
matrix? It seems to yield all nonzero locations,

No, it gives you rows, just like a dense 2D array.

--
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
 that is made terrible by our own mad attempt to interpret it as though it had
 an underlying truth."
  -- Umberto Eco

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