Package pst-chladni Jürgen Gilg (+ 2024) Manuel Luque Herbert Voß Ernst Florens Friedrich Chladni (1756 – 1827) was a German physicist and musician. His most important work, for which he is sometimes labeled the father of acoustics, included research on vibrating plates and the calculation of the speed of sound for different gases. This packages draws the vibration of circular plates with unbound edges. This program can be redistributed and/or modified under the terms of the LaTeX Project Public License Distributed from CTAN archives in directory macros/latex/base/lppl.txt. hvoss@tug.org