t3_scale

t3toolbox.backend.t3_linalg.t3_scale(x, s)

def t3_scale(
        x: typ.Tuple[typ.Sequence[NDArray], typ.Sequence[NDArray]],  # (tucker_cores, tt_cores)
        s,  # scalar
) -> typ.Tuple[
    typ.Tuple[NDArray, ...],  # scaled tucker_cores (x * s)
    typ.Tuple[NDArray, ...],  # tt_cores (unchanged)
]:

Multipy a Tucker tensor train by a scaling factor.

Parameters:

x (t3toolbox.backend.common.typ.Tuple[t3toolbox.backend.common.typ.Sequence[NDArray], t3toolbox.backend.common.typ.Sequence[NDArray]])

Return type:

t3toolbox.backend.common.typ.Tuple[t3toolbox.backend.common.typ.Tuple[NDArray, Ellipsis], t3toolbox.backend.common.typ.Tuple[NDArray, Ellipsis]]