[Scipy-tickets] [SciPy] #419: Bug in hyp1f1 -- Confluent hypergeometric function (1F1)

SciPy scipy-tickets@scipy....
Wed May 16 15:04:05 CDT 2007


#419: Bug in hyp1f1 -- Confluent hypergeometric function (1F1)
---------------------------+------------------------------------------------
 Reporter:  csgillespie    |        Owner:  cookedm
     Type:  defect         |       Status:  closed 
 Priority:  normal         |    Milestone:         
Component:  scipy.special  |      Version:  0.5.2  
 Severity:  normal         |   Resolution:  fixed  
 Keywords:                 |  
---------------------------+------------------------------------------------
Changes (by cookedm):

  * status:  assigned => closed
  * resolution:  => fixed

Comment:

 I think r3012 fixes this. How it was determining the error in the power-
 series expansion (which it uses to compare with the asymptotic expansion
 to chose which result to use) was a bit wonky. I'm not surprised: from the
 comments in the hyperg.c file, it looks like it wasn't tested for negative
 z (!).

-- 
Ticket URL: <http://projects.scipy.org/scipy/scipy/ticket/419#comment:2>
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