2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/226937We describe the Density Matrix Renormalization Group algorithms for time dependent and time independent Hamiltonians. This paper is a brief but comprehensive introduction to the subject for anyone willing to enter in the field or write the program source code from scratch.29 pages, 9 figures. Published version. An open source version of the code can be found at http://qti.sns.it/dmrg/phome.htmlOther Condensed MatterQuantum Physicstext