Matrices for a sound transmission problem

Matrices for a numerical model of the sound transmission problem examined in R. W. Guy. "The Transmission of Airborne Sound through a Finite Panel, Air Gap, Panel and Cavity Configuration – a Steady State Analysis ", Acta Acustica united with Acustica, 49(4): 323--333, 1981. For usage see RUNME.m, RUNME.py, and the MOR Wiki. Version history: 1.0: Initial release 1.1: Added RUNME.py