Patch for numpy support

Index: lib/matplotlib/numerix/linear_algebra/__init__.py

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RCS file: /cvsroot/matplotlib/matplotlib/lib/matplotlib/numerix/linear_algebra/__init__.py,v
retrieving revision 1.5
diff -r1.5 __init__.py
8a9,10

    inverse = inv
    eigenvectors = eig

This fixes import errors when using only numpy.

Regards,
Pearu