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3.2.3 |
Structure for the Gauss transform. More...
Data Fields | |
| int | N |
| number of source nodes | |
| int | M |
| number of target nodes | |
| double _Complex * | alpha |
| source coefficients | |
| double _Complex * | f |
| target evaluations | |
| unsigned | flags |
| flags for precomputation and approximation type | |
| double _Complex | sigma |
| parameter of the Gaussian | |
| double * | x |
source nodes in ![$[-1/4,1/4]$](form_95.png) | |
| double * | y |
| target nodes in | |
| double _Complex * | pre_cexp |
| precomputed values for dgt | |
| int | n |
| expansion degree | |
| double | p |
| period, at least 1 | |
| double _Complex * | b |
| expansion coefficients | |
| nfft_plan * | nplan1 |
| source nfft plan | |
| nfft_plan * | nplan2 |
| target nfft plan | |
Structure for the Gauss transform.
Definition at line 72 of file fastgauss.c.