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Package org.apache.commons.math3.transform


Implementations of transform methods, including Fast Fourier transforms.

Interface Summary

Modifier and TypeInterface and Description
public interface
RealTransformer

Interface for one-dimensional data sets transformations producing real results.

Class Summary

Modifier and TypeClass and Description
public class
FastCosineTransformer

Implements the Fast Cosine Transform for transformation of one-dimensional real data sets.

public class
FastFourierTransformer

Implements the Fast Fourier Transform for transformation of one-dimensional real or complex data sets.

public class
public class
FastSineTransformer

Implements the Fast Sine Transform for transformation of one-dimensional real data sets.

public class
TransformUtils

Useful functions for the implementation of various transforms.

Enum Summary

Modifier and TypeEnum and Description
public enum
DctNormalization

This enumeration defines the various types of normalizations that can be applied to discrete cosine transforms (DCT).

public enum
DftNormalization

This enumeration defines the various types of normalizations that can be applied to discrete Fourier transforms (DFT).

public enum
DstNormalization

This enumeration defines the various types of normalizations that can be applied to discrete sine transforms (DST).

public enum
TransformType

This enumeration defines the type of transform which is to be computed.