On Fri, 23 Mar 2007, Charles R Harris apparently wrote: > the following gives the wrong result: > In [15]: I = matrix(eye(2)) > In [16]: I*ones(2) > Out[16]: matrix([[ 1., 1.]]) > where the output should be a column vector.
Why should this output a column? I would prefer an exception. Add the axis if you want it: I*ones(2)[:,None] works fine. Matrix multiplication should only work for 2d arrays. Making a larger point: I find the mixing of matrices and arrays when using ``*`` to be highly suspect and far too implicit. This is going to bite people. Finally, however else this moves forward, I think making ``*`` work differently than ``dot`` is a bad idea. Cheers, Alan Isaac _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion
