2023-03-26

This release fix the gradients of xyz_to_angles: instead of returning NaN on the poles, it now returns zero.

Angles alpha and beta on the sphere:

(x-axis points to the right, y-axis to the top and z-axis comes out of the image)

Gradients of alpha wrt (x, y, z) respectively:

Gradients of beta wrt (x, y, z) respectively:

Fixed

• Fix NaN in the gradients of e3nn.xyz_to_angles. The gradients are now 0 when the input is on the poles.