2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/126128Boltzmann's differential equation is replaced by the corresponding reciprocal symmetric finite difference equation. Finite difference translates discreteness of energy. Boltzmann's function, then, splits into two reciprocally related functions. One of them gives Planck's radiation relation and the other one gives the corresponding Fermi-Dirac relation.4 pagesGeneral Physicstext