Solving Integral Equations on Piecewise Smooth Boundaries Using the RCIP Method: A Tutorial
Figure 14
The exterior Dirichlet problem for Helmholtz equation with RCIP applied to (55). The program demo11.m is used with as in (1), and . The boundary condition of (51) is generated by a point source at . (a) The absolute error in at . (b) The number of GMRES iterations needed to meet an estimated relative residual of .