[Scipy-tickets] [SciPy] #1847: mathieu_modsem2 test failure

SciPy Trac scipy-tickets@scipy....
Thu Mar 28 16:15:51 CDT 2013

#1847: mathieu_modsem2 test failure
 Reporter:  rgommers       |       Owner:  pv    
     Type:  defect         |      Status:  new   
 Priority:  normal         |   Milestone:  0.12.0
Component:  scipy.special  |     Version:  0.11.0
 Keywords:                 |  

Comment(by rgommers):

 Found one install again to reproduce this. Intermittently, there's a nan
 at the same location:
 In [36]: y1[1, 9, 6]
 Out[36]: nan

 In [65]: cephes.mathieu_modsem2(m[1], q[0,9,0], -z[0,0,6])
 Out[65]: (array([[ 0.14317429]]), array([[ 0.90178715]]))

 In [66]: cephes.mathieu_modsem2(2, 100, -1)
 Out[66]: (0.14317429130664511, 0.90178714503202273)

 If I run {{{special.test()}}} everything works, while if I run the full
 scipy test suite it fails consistently. Extracting the failing test and
 running it as a script gives me a failure once every 10 runs or so.

 Not sure how to debug this further, going to mark as knownfail on 0.12.x

Ticket URL: <http://projects.scipy.org/scipy/ticket/1847#comment:4>
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