2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/164676We extend the former matrix rearrangement approach of the entangling power to the general cases, without the requirement of the same dimensions of the subsystems. The entangling power of a unitary operator is completely determined by its realignment and partial transposition. As applications, we calculate the entangling power for the Ising interaction and the isotropic Heisenberg interaction in the mixed qudit system.8 pages, 3 figures, will appear in Quantum Infomation & Computation Vol.8 No.6/7 pp0671-0680Quantum Physicstext