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Fixed a small bug in kaiser-squires inversion #65

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Fixed a small bug in kaiser-squires inversion #65

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6 changes: 2 additions & 4 deletions jax_lensing/inversion.py
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Original file line number Diff line number Diff line change
Expand Up @@ -57,8 +57,7 @@ def ks93(g1, g2):
p1 = k1 * k1 - k2 * k2
p2 = 2 * k1 * k2
k2 = k1 * k1 + k2 * k2
#k2[0, 0] = 1 # avoid division by 0
k2 = jax.ops.index_update(k2, jax.ops.index[0, 0], 1.) # avoid division by 0
k2 = k2.at[0, 0].set(1.) #avoid division by 0
kEhat = (p1 * g1hat + p2 * g2hat) / k2
kBhat = -(p2 * g1hat - p1 * g2hat) / k2

Expand Down Expand Up @@ -107,8 +106,7 @@ def ks93inv(kE, kB):
p1 = k1 * k1 - k2 * k2
p2 = 2 * k1 * k2
k2 = k1 * k1 + k2 * k2
#k2[0, 0] = 1 # avoid division by 0
k2 = jax.ops.index_update(k2, jax.ops.index[0, 0], 1) # avoid division by 0
k2 = k2.at[0, 0].set(1.) #avoid division by 0
g1hat = (p1 * kEhat - p2 * kBhat) / k2
g2hat = (p2 * kEhat + p1 * kBhat) / k2

Expand Down