2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/169095In this paper, we examine a variety of strategies for numerical quantum-state estimation from data of the sort commonly measured in experiments involving quantum state tomography. We find that, in some important circumstances, an elaborate and time-consuming numerical optimization to obtain 'the best' density matrix corresponding to a given data set is not necessary, and that cruder, faster numerical techniques may well be 'good enough'.12 pages, 3 tables, 9 figures. Files: 9 PDF figures and 1 TEX file, all in ZIP archiveQuantum Physicstext