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FIX: Updates for Numba 0.49.0 #531

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merged 4 commits into from
Apr 21, 2020
Merged

FIX: Updates for Numba 0.49.0 #531

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7b3c40e
FIX: Fix ModuleNotFoundError for Numba 0.49.0
oyamad Apr 20, 2020
215dee3
FIX: Fix errors in tests for `quad.py` when Numba 0.49.0 is used
QBatista Apr 21, 2020
5c37da7
FIX: Fix errors in tests for `nelder_mead.py` when Numba 0.49.0 is used
QBatista Apr 21, 2020
6086fd7
RFC: Fix PEP8 errors
oyamad Apr 21, 2020
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FIX: Fix errors in tests for quad.py when Numba 0.49.0 is used
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@QBatista
QBatista committed Apr 21, 2020
commit 215dee3357093fc6c90d9e08cc177e8881b1dc1e
7 changes: 5 additions & 2 deletions quantecon/quad.py
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Expand Up @@ -784,7 +784,9 @@ def _qnwlege1(n, a, b):
p2 = p1
p1 = ((2 * j - 1) * z * p2 - (j - 1) * p3) / j

pp = n * (z * p1 - p2)/(z * z - 1.0)
top = n * (z * p1 - p2)
bottom = z ** 2 - 1.0
pp = top / bottom # https://github.com/QuantEcon/QuantEcon.py/issues/530
z1 = z.copy()
z = z1 - p1/pp
if np.all(np.abs(z - z1) < 1e-14):
Expand All @@ -796,7 +798,8 @@ def _qnwlege1(n, a, b):
nodes[i] = xm - xl * z
nodes[- i - 1] = xm + xl * z

weights[i] = 2 * xl / ((1 - z * z) * pp * pp)
# https://github.com/QuantEcon/QuantEcon.py/issues/530
weights[i] = 2 * xl / ((1 - z ** 2) * pp * pp)
weights[- i - 1] = weights[i]

return nodes, weights
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