Research Article
VIE-FG-FFT for Analyzing EM Scattering from Inhomogeneous Nonmagnetic Dielectric Objects
Table 4
The Preprocessing time in Example D.
| Method | Edge length () | Unknowns | Preprocessing time (s) |
| FG-FFT | 0.15 | 10875 | 18.42 | P-FFT | 84.36 |
| FG-FFT | 0.1 | 39927 | 261.27 | P-FFT | 512.69 |
| FG-FFT | 0.08 | 61376 | 934.07 | P-FFT | 1326.58 |
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