2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/100638In this article two implementations of a symmetric finite difference algorithm for a first-order partial differential equation are discussed. The considered partial differential equation discribes the time evolution of the crack length distribution of microcracks in brittle materia.LaTeX, 6 pages, 9 eps-figures, v2: minor additions/correctionsComputational Engineering, Finance, and ScienceDiscrete Mathematicstext