(Color online) Sphere test case. Relative error in the electric potential due to induced charges only along the diameter passing through the source charge. Results for both ITER (circles) and ICC (diamonds) are compared for the same number of boundary discretization tiles. The source charge is located at z = 4 Å.
Berti et al. Nanoscale Research Letters 2012 7:135 doi:10.1186/1556-276X-7-135