2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/57641An informal guide to the history of Heisenberg's matrix mechanics. It is designed for mathematicians with only a minimal background in either physics or geometry, and it is based upon Heisenberg's original arguments.13 pagesMathematical Physics81Q99Matrix Revolutions, The Origin of Quantum Variablestext