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Maximum convergence error of finite-difference Green’s function values when Δx, Δy, Δz ≤ 40 or Δx, Δy, Δz ≤ 20.
| Grid dimension | Max error (Δx,Δy,Δz ≤ 40) | Max error (Δx,Δy,Δz ≤ 20) |
|---|---|---|
| 481×481×481 | 1.1×10−7 | 5.7×10−8 |
| 601×601×601 | 5.1×10−8 | 2.5×10−8 |
| 721×721×721 | 2.6×10−8 | 1.3×10−8 |
| 841×841×841 | 1.4×10−8 | 7.3×10−9 |
| 961×961×961 | NA | NA |
