[Scipy-tickets] [SciPy] #872: cholesky ignores option overwrite_a=True

SciPy scipy-tickets@scipy....
Sun Feb 22 15:18:31 CST 2009


#872: cholesky ignores option overwrite_a=True
--------------------+-------------------------------------------------------
 Reporter:  hols    |       Owner:  somebody
     Type:  defect  |      Status:  new     
 Priority:  normal  |   Milestone:  0.8.0   
Component:  Other   |     Version:  devel   
 Severity:  normal  |    Keywords:          
--------------------+-------------------------------------------------------
 the option overwrite_a has no effect on cholesky decomposition.


 In [49]: g[[BR]]

 Out[49]:[[BR]]

 array([[ 3.,  0.,  0.],[[BR]]

        [ 0.,  4.,  0.],[[BR]]

        [ 0.,  0.,  5.]])[[BR]]
 [[BR]]


 In [50]: cholesky(g,overwrite_a = True )[[BR]]

 Out[50]: [[BR]]

 array([[ 1.73205081,  0.        ,  0.        ],[[BR]]

        [ 0.        ,  2.        ,  0.        ],[[BR]]

        [ 0.        ,  0.        ,  2.23606798]])[[BR]]

 [[BR]]

 In [51]: g[[BR]]

 Out[51]:[[BR]]
 [[BR]]

 array([[ 3.,  0.,  0.],[[BR]]

        [ 0.,  4.,  0.],[[BR]]

        [ 0.,  0.,  5.]])[[BR]]

-- 
Ticket URL: <http://scipy.org/scipy/scipy/ticket/872>
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