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QuaTorch

Quaternions in PyTorch

12 stars v0.3.0 April 19, 2026 MIT

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QuaTorch is a lightweight python package providing Quaternion, a torch.Tensor subclass that represents a Quaternion. It implements torch.compile-able operations for quaternions such as multiplication, conjugation, inversion, normalization, log, exp, etc. It also supports conversion to/from rotation matrix and axis-angle representation. Convenient utilities are provided together, such as spherical linear interpolation (SLERP) and 3D vector rotation.

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