Corrigendum to “A stochastic spectral projection method for solving PDEs in domains composed by overlapping discs, spheres, and half-spaces”

In this note some technical formulae related to the algorithm presented in my recent paper Sabelfeld (2013) are given. Without these explicit formulae, the method might look erroneous, as argued by some readers. In addition, numerical results are presented to illustrate the performance of the method.