| DclInitRealFFT | Initialize. |
| DclDeallocRealFFT | The opening of a workspace. |
| DclRealFFT_F | Forward transformation. |
| DclRealFFT_B | Backward transformation. |
| DclInitEasyFFT | Initialize. |
| DclDeallocEasyFFT | The opening of a workspace. |
| DclEasyFFT_F | Forward transformation. |
| DclEasyFFT_B | Backward transformation. |
| DclInitSinFFT | Initialize. |
| DclDeallocSinFFT | The opening of a workspace. |
| DclSinFFT | (Positive reverse common) conversion. |
| DclInitCosFFT | Initialize. |
| DclDeallocCosFFT | The opening of a workspace. |
| DclCosFFT | (Positive reverse common) conversion. |
| DclInitSinQFT | Initialize. |
| DclDeallocSinQFT | The opening of a workspace. |
| DclSinQFT_F | Forward transformation. |
| DclSinQFT_B | Backward transformation. |
| DclInitCosQFT | Initialize. |
| DclDeallocCosQFT | The opening of a workspace. |
| DclCosQFT_F | Forward transformation. |
| DclCosQFT_B | Backward transformation. |
| DclInitComplexFFT | Initialize. |
| DclDeallocComplexFFT | The opening of a workspace. |
| DclComplexFFT_F | Forward transformation. |
| DclComplexFFT_B | Backward transformation. |