2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/147882A review of the status of lattice simulations in particle physics phenomenology is presented. Recent computations of leptonic decay constants of light and heavy mesons, and of the Isgur-Wise function relevant for semi-leptonic decays of $B$-mesons, are discussed in some detail. Calculations of other quantities are briefly outlined. The systematic errors inherent in lattice simulations, and procedures to reduce and control them, are described.8 pages, uuencoded compressed postscript file, to appear in the Proceedings of the International Europhysics Conference on High Energy Physics, Marseille, July 22-28, 1993, Southampton Preprint 93/94-02 (Replacement of Corrupted File)High Energy Physics - Phenomenologytext