Hi Dwishen, I never ever used sparse matrices, so I am not exactly the right person to ask. On a general rule, alway ask the mailing list, and reply to the mailing list, that way every body can help you. Regards, Gaël ----- Forwarded message from Dwishen Ramanah <d.ramanah@uq.edu.au> ----- From: Dwishen Ramanah <d.ramanah@uq.edu.au> To: gael.varoquaux@normalesup.org Subject: sparse Date: Thu, 24 Aug 2006 17:28:02 +1000 Hi, I was just wondering if it was possible to solve using sparse in scipy for a non-square A matrix. Ax = b dwishen ----- End forwarded message -----