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using momentum changes now works.

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Daniel Knüttel 2019-07-16 21:22:11 +02:00
parent 26acc9802d
commit be0e67e954
1 changed files with 2 additions and 2 deletions
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py/brown/brown.py
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@ -38,8 +38,8 @@ class BrownIterator(object):
return self.x, self.y return self.x, self.y
delta_px, delta_py = self._interaction(self.x, self.y) delta_px, delta_py = self._interaction(self.x, self.y)
self.px += delta_px self.px = delta_px + self.px
self.py += delta_py self.py = delta_py + self.py
# XXX: We need the (-1)**i to make the problem # XXX: We need the (-1)**i to make the problem
# symmetric. # symmetric.
self.px[np.isnan(self.px)] = self.speed_of_light * (-1)**self._i self.px[np.isnan(self.px)] = self.speed_of_light * (-1)**self._i