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### 4.3 Basic Interface

The basic interface, which we expect to satisfy the needs of most users, provides planner routines for transforms of a single contiguous array with any of FFTW's supported transform types.

- Complex DFTs:
- Planner Flags:
- Real-data DFTs:
- Real-data DFT Array Format:
- Real-to-Real Transforms:
- Real-to-Real Transform Kinds: