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4.4 Advanced Interface

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FFTW’s “advanced” interface supplements the basic interface with four cannam@167: new planner routines, providing a new level of flexibility: you can plan cannam@167: a transform of multiple arrays simultaneously, operate on non-contiguous cannam@167: (strided) data, and transform a subset of a larger multi-dimensional cannam@167: array. Other than these additional features, the planner operates in cannam@167: the same fashion as in the basic interface, and the resulting cannam@167: fftw_plan is used in the same way (see Using Plans). cannam@167:

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• Advanced Complex DFTs:   cannam@167:
• Advanced Real-data DFTs:   cannam@167:
• Advanced Real-to-real Transforms:   cannam@167:
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