Colin J. Williams
cjw at sympatico.ca
Tue Nov 25 20:08:30 CET 2003
In response to a number of requests, the PyMatrix package is now
available for download as a zip file.
> PyMatrix is available for test and review.
> PyMatrix provides access to basic matrix arithmetic, using Python and
> A * B => the product of matrices A and B
> A.I => the inverse of matrix A
> A.EVectors => the eigenvectors of A
> A.var(0) => the variances of the columns of A
> (a.T*a).I * a.T*b => the solution (x) for a * x = b,
> where a is a matrix and b a column vector
> This package was developed on a Windows XP. I would appreciate
> comments, particularly with respect to usage on other systems.
> Colin W.
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