Helmholtz problem in circular disk

The code revolves around solving the Helmholtz problem on a circular disk using MATLAB, focusing on calculating and plotting the eigen

The code provided address the numerical solution of the Helmholtz equation on a circular disk, specifically focusing on the computation of eigenvalues and eigenfunctions that arise in this context. The Helmholtz equation, a fundamental partial differential equation in mathematical physics, describes phenomena such as electromagnetic radiation and acoustics. In the case of a circular disk, the solution involves Bessel functions, where the eigenvalues are determined by their zeros.