2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/47127I discuss some general aspects of diagonalizing the quark mass matrices and list all possible parametrizations of the Cabibbo-Kobayashi-Maskawa matrix (CKM) in terms of three rotation angles and a phase. I systematically study the relation between the rotations needed to diagonalize the Yukawa matrices and various parametrizations of the CKM.14 pages, RevtexHigh Energy Physics - Phenomenologytext