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[[Image:FDTD MAN19.png|thumb|left|550px|The top view of the regular FDTD mesh of the dielectric ellipsoid with the same mesh density.]]
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[[Image:FDTD MAN20A.png|thumb|left|550px|The top view of the fixed-cell FDTD mesh of the dielectric ellipsoid using the larger cell size inside the air region.]]
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