t3toolbox.backend.apply.t3_apply
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.. py:function:: t3toolbox.backend.apply.t3_apply(x: t3toolbox.backend.common.typ.Union[t3toolbox.backend.common.typ.Tuple[t3toolbox.backend.common.typ.Sequence[t3toolbox.backend.common.NDArray], t3toolbox.backend.common.typ.Sequence[t3toolbox.backend.common.NDArray]], t3toolbox.backend.common.typ.Tuple[t3toolbox.backend.common.NDArray, t3toolbox.backend.common.NDArray]], vecs: t3toolbox.backend.common.typ.Union[t3toolbox.backend.common.typ.Sequence[t3toolbox.backend.common.NDArray], t3toolbox.backend.common.NDArray], use_jax: bool = False) -> t3toolbox.backend.common.NDArray

   Contract a Tucker tensor train with vectors in all indices.