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Clarify 1D QuinticSpline Normalization in docstring #429

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Clarify 1D QuinticSpline Normalization in docstring #429

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5 changes: 5 additions & 0 deletions pysph/base/kernels.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1066,6 +1066,11 @@ class QuinticSpline(object):
\sigma_5 = \ & \frac{7}{478\pi h^2}, \ & \textrm{for dim=2}, \\
\sigma_5 = \ & \frac{1}{120\pi h^3}, & \textrm{for dim=3}. \\

.. note::
The 1D coefficient was corrected from :math:'1/60' to \\
:math:'1/120' (see issue #421). Normalization requires integration \\
over the full domain :math:'[−3h, 3h]'.

"""

def __init__(self, dim=2):
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