Theory and Modern Applications
From: A fourth order block-hexagonal grid approximation for the solution of Laplace’s equation with singularities
\(\boldsymbol{2^{-m}}\)
\(\boldsymbol{2^{-5}}\)
\(\boldsymbol{2^{-6}}\)
\(\widetilde{R}_{P_{S}^{1}}^{m}\)
13.8404
19.6426
\(\widetilde{R}_{P_{S}^{2}}^{m}\)
13.7489
19.6505