Sorry, ignore question. Best ... From: Dinesh B Vadhia Sent: Tuesday, October 16, 2012 1:17 AM To: scipy-user@scipy.org Subject: Memory required for sparse calculation Nathan Bell answered this question a long time ago but I cannot find the archive reference to it: in the Scipy matrix calculation y <- Ax, what is the memory required for the calculation to take place in addition to A (ignore memory requirements for y and x)?