[Scipy-tickets] [SciPy] #316: adding sparse matrices sometimes gives wrong result

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Mon Dec 4 11:03:22 CST 2006


#316: adding sparse matrices sometimes gives wrong result
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 Reporter:  martin_wiechert      |        Owner:  somebody
     Type:  defect               |       Status:  new     
 Priority:  normal               |    Milestone:          
Component:  scipy.sparse         |      Version:  devel   
 Severity:  critical             |   Resolution:          
 Keywords:  sparse, wrong value  |  
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Comment (by rc):

 It looks that already 'a[3, 0] = -1' (i.e. {{{__setitem__}}} method of
 CSC) does a wrong thing - the rowind index array is not increasing for
 every column (should be?).

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Ticket URL: <http://projects.scipy.org/scipy/scipy/ticket/316#comment:2>
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