On 12/10/11 08:31, Timothy Bates wrote:
To do matrix multiplication: m x n, the Rows and columns of  m must be equal to 
the columns and rows of n, respectively.

No.  The number of columns of m must equal the number of rows of n,
that's all.  The number of *rows* of m and the number of *columns* of n
can be anything you like.

    cheers,

        Rolf Turner

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