[SciPy-user] cephes.pbdv test fails

Xavier Gnata xavier.gnata@gmail....
Sat Nov 8 13:12:42 CST 2008


Hi,

On my box,
from scipy.special import *
import scipy.special._cephes as cephes
cephes.pbdv(1,0)
returns
(0.0, 1.0)

As a result, assert_equal(cephes.pbdv(1,0),(0.0,0.0)) from
"/usr/lib/python2.5/site-packages/scipy/special/tests/test_basic.py",line
357 fails.

First can someone reproduce this bug?
I'm using ubuntu intrepid 64bits.

Second, if my understanding of pbdv is supposed to do, (0.0, 1.0) is the
correct answer.
http://mathworld.wolfram.com/ParabolicCylinderFunction.html

Xavier


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