laurent.fe...@free.fr wrote: > Hello, > > if i multiply two matrix, one with a unique line and the second one with a > unique column, i should have a scalar: > >>>> line > matrix([[1, 3, 1]]) >>>> col > matrix([[2], > [2], > [2]]) >>>> line*col > matrix([[10]]) > > Matlab give me a scalar, Numpy does not...
Matlab does not have the concept of scalar: everything is a matrix (size(1) returns (1, 1) in matlab). NumPy matrix objects are more or less the same: every operation between two matrices return a matrix. Although natural coming from a matlab background, I would advise against using matrices because they look more familiar. I did the same mistake when I started using NumPy, and getting used to NumPy arrays took me more time. cheers, David _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
