[Scipy-tickets] [SciPy] #1109: Bessel functions of second kind do not accept complex order (was: Bessel functions of second kind do not accept complex arguments)

SciPy Trac scipy-tickets@scipy....
Tue Feb 2 12:09:25 CST 2010


#1109: Bessel functions of second kind do not accept complex order
---------------------------+------------------------------------------------
 Reporter:  ariel          |       Owner:  pv   
     Type:  defect         |      Status:  new  
 Priority:  normal         |   Milestone:  0.8.0
Component:  scipy.special  |     Version:  0.7.0
 Keywords:                 |  
---------------------------+------------------------------------------------
Changes (by pv):

  * owner:  somebody => pv
  * component:  Other => scipy.special


Comment:

 Bessel functions of complex argument work,
 {{{
 >>> import scipy, scipy.special as sc
 >>> scipy.__version__
 '0.7.1'
 >>> sc.yv(3, 1+2j)
 (0.29015329423954583-0.21211877047925784j)
 }}}
 There's no implementation of complex-order Bessel functions at the moment,
 however,
 {{{
 >>> sc.yv(3j, 1+2j)
 Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
 TypeError: function not supported for these types, and can't coerce safely
 to supported types
 }}}

-- 
Ticket URL: <http://projects.scipy.org/scipy/ticket/1109#comment:1>
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