|   | 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 ![$[-1/4,1/4]$](form_95.png)  | |
| 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.