# Package org.apache.commons.math3.transform

Implementations of transform methods, including Fast Fourier transforms.

See: Description

Interface Summary
Interface | Description
--- | ---
RealTransformer | Interface for one-dimensional data sets transformations producing real results.

Class Summary
Class | Description
--- | ---
FastCosineTransformer | Implements the Fast Cosine Transform for transformation of one-dimensional real data sets.
FastFourierTransformer | Implements the Fast Fourier Transform for transformation of one-dimensional real or complex data sets.
FastFourierTransformer.MultiDimensionalComplexMatrix | Deprecated see MATH-736
FastHadamardTransformer | Implements the Fast Hadamard Transform (FHT).
FastSineTransformer | Implements the Fast Sine Transform for transformation of one-dimensional real data sets.
TransformUtils | Useful functions for the implementation of various transforms.

Enum Summary
Enum | Description
--- | ---
DctNormalization | This enumeration defines the various types of normalizations that can be applied to discrete cosine transforms (DCT).
DftNormalization | This enumeration defines the various types of normalizations that can be applied to discrete Fourier transforms (DFT).
DstNormalization | This enumeration defines the various types of normalizations that can be applied to discrete sine transforms (DST).
TransformType | This enumeration defines the type of transform which is to be computed.

## Package org.apache.commons.math3.transform Description

Implementations of transform methods, including Fast Fourier transforms.