UT3Tangent.zeros ================ .. py:method:: t3toolbox.uniform_manifold.UT3Tangent.zeros(frame, stack_shape = ()) :staticmethod: .. code-block:: python def zeros( frame: ubv.UT3Frame, stack_shape: typ.Tuple[int, ...] = (), # extra tangent stack K (a batch of tangents) ) -> 'UT3Tangent': Zero tangent vector at a given frame (numpy/jax matching the frame). ``stack_shape`` is the extra *outer* tangent stack ``K`` (a batch of tangents sharing this frame); the variation supercores are stacked ``(d,) + K + C + (core,)``, and the variation masks are the frame's gauge masks replicated (constant) along ``K``. Default ``K = ()``.