T3Tangent.zeros

static t3toolbox.manifold.T3Tangent.zeros(frame, stack_shape=())

def zeros(
        frame:          bvf.T3Frame,
        stack_shape:    typ.Tuple[int, ...] = (),  # extra tangent stack K (a batch of tangents)
) -> 'T3Tangent':

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 cores are stacked as K + C + (core,). Default K=().

Parameters:

• frame (T3Frame)

• stack_shape (t3toolbox.backend.common.typ.Tuple[int, Ellipsis])

Return type:

T3Tangent