[Numpy-discussion] transpose of a matrix should be another matrix

Dr. Phillip M. Feldman pfeldman@verizon....
Tue Jul 7 00:34:52 CDT 2009


I'm using the Enthought Python Distribution. When I define a matrix and
transpose it, it appears that the result is no longer a matrix (see below). 
This is both surprising and disappointing.  Any suggestions will be
appreciated.

In [16]: A=matrix([[1,2,3],[4,5,6],[7,8,9]])

In [17]: B=A.transpose

In [18]: A
Out[18]:
matrix([[1, 2, 3],
        [4, 5, 6],
        [7, 8, 9]])

In [19]: B
Out[19]: <built-in method transpose of matrix object at 0x00CF2A30>
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