[Numpy-tickets] [NumPy] #601: function for computing powers of a matrix
NumPy
numpy-tickets@scipy....
Tue Oct 30 09:18:37 CDT 2007
#601: function for computing powers of a matrix
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Reporter: LevGivon | Owner: somebody
Type: enhancement | Status: new
Priority: normal | Milestone: 1.0.4
Component: numpy.linalg | Version: devel
Severity: normal | Resolution:
Keywords: |
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Comment (by LevGivon):
'' I suppose one could modify the proposed function to check
whether the matrix is defective within an appropriate
tolerance.''
For the sake of comparison, Matlab's matrix exponentation mechanism
apparently uses decomposition without checking for defectiveness (and
encounters numerical issues when the matrix is defective). Octave returns
nans and infinities when non-integer exponents are specified even for non-
defective matricies.
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Ticket URL: <http://scipy.org/scipy/numpy/ticket/601#comment:5>
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