t3_stack

t3toolbox.backend.t3_operations.t3_stack(xx)

def t3_stack(
        xx,  # array-like structure of nested tuples containing Tucker tensor trains (stack tree)
) -> typ.Tuple[
    typ.Tuple[NDArray, ...],  # stacked_tucker_cores. elm_shape=stack_shape+(ni,Ni)
    typ.Tuple[NDArray, ...],  # stacked_tt_cores.     elm_shape=stack_shape+(rLi,ni,rR(i+1))
]:

Return type:

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