On 6/6/2009 12:41 AM Charles R Harris apparently wrote: > Well, one could argue that. The x.T is a member of the dual, hence maps > vectors to the reals. Usually the reals aren't represented by 1x1 > matrices. Just my [.02] cents.
Of course that same perspective could lead you to argue that a M×N matrix is for mapping N vectors to M vectors, not for doing matrix multiplication. Matrix multiplication produces a matrix result **by definition**. Treating 1×1 matrices as equivalent to scalars is just a convenient anomaly in certain popular matrix-oriented languages. Cheers, Alan Isaac _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
