[Numpy-discussion] Memory leak with matrices?

Hi, I've got two issues: First, the following seems to cause a memory leak, using numpy 1.3.0: a = matrix(ones(1)) while True: a += 0 This only seems to happen when a is a matrix rather than an array, and when the short hand '+=' is used. Second, I'm not sure whether that's a bug or whether I just don't understand what's going on, but when a is a column array, (e.g. a = ones((10, 1))), then a -= a[0,:] only subtracts from a[0, 0], whereas not using the short hand or using something else than a on the righthand side seems to subtract from all rows as expected. Thanks a lot, David -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.