[Scipy-tickets] [SciPy] #623: scipy.special.jv incorrect for certain argument(s)

SciPy scipy-tickets@scipy....
Sun Jan 18 12:42:01 CST 2009


#623: scipy.special.jv incorrect for certain argument(s)
-------------------------------+--------------------------------------------
 Reporter:  wa03               |        Owner:  cookedm 
     Type:  defect             |       Status:  assigned
 Priority:  normal             |    Milestone:  0.7.0   
Component:  scipy.special      |      Version:          
 Severity:  major              |   Resolution:          
 Keywords:  special.jv bessel  |  
-------------------------------+--------------------------------------------
Comment (by pv):

 Please file new tickets if the issue is not directly connected with the
 present one, so that it's easier to keep a track of what still needs to be
 done.

 * The `kn` problems -> #851
 * In current SVN scipy, `jn(199,250.1)` and `jn(9,250.1)` are accurate to
 1e-16 relative tolerance. Appears to have been fixed in r2971, cf. ticket
 #398, it was another sub-optimal Cephes function.
 * Problems in `jn_zeros` -> #852
 * The `erf` discussion -> #683

 The discussion about `jv` should continue here. Thanks.

-- 
Ticket URL: <http://scipy.org/scipy/scipy/ticket/623#comment:9>
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