Uses of Class
gov.sandia.cognition.math.ComplexNumber

Packages that use ComplexNumber

Package	Description
gov.sandia.cognition.math	Provides classes for mathematical computation.
gov.sandia.cognition.math.matrix	Provides interfaces and classes for linear algebra.
gov.sandia.cognition.math.matrix.custom	Provides a custom linear algebra package implementation for both dense and sparse classes.
gov.sandia.cognition.math.matrix.decomposition	Provides matrix decompositions.
gov.sandia.cognition.math.matrix.mtj	Provides a linear algebra package implementation wrapper using the Matrix Toolkits for Java (MTJ) library.
gov.sandia.cognition.math.signals	Provides mathematical signal processing methods.

Uses of ComplexNumber in gov.sandia.cognition.math

Methods in gov.sandia.cognition.math that return ComplexNumber

Modifier and Type	Method and Description
ComplexNumber	ComplexNumber.clone() Returns a deep copy of this
ComplexNumber	ComplexNumber.computeExponent() Computes the natural-base exponent of the complex number, such that this = log(exp(this)) = exp(log(this))
ComplexNumber	ComplexNumber.computeNaturalLogarithm() Computes the natural-base logarithm of the complex number, such that this = log(exp(this)) = exp(log(this))
ComplexNumber	ComplexNumber.conjugate() Switches the sign of the imaginary part of this complex number.
ComplexNumber	ComplexNumber.divide(ComplexNumber other) Arithmetic division of this by other using polar coordinates: magnitude = this.magnitude / other.magnitude phase = this.phase - other.phase answer.realPart = magnitude * cos( phase ) answer.imaginaryPart = magnitude * sin( phase )
ComplexNumber	ComplexNumber.dividedBy(ComplexNumber other) Deprecated. Use divide.
ComplexNumber	ComplexNumber.times(ComplexNumber other) Arithmetic multiplication of this and other using polar coordinates: magnitude = this.magnitude * other.magnitude phase = this.phase + other.phase answer.realPart = magnitude * cos( phase ) answer.imaginaryPart = magnitude * sin( phase )

Methods in gov.sandia.cognition.math with parameters of type ComplexNumber

Modifier and Type	Method and Description
ComplexNumber	ComplexNumber.divide(ComplexNumber other) Arithmetic division of this by other using polar coordinates: magnitude = this.magnitude / other.magnitude phase = this.phase - other.phase answer.realPart = magnitude * cos( phase ) answer.imaginaryPart = magnitude * sin( phase )
ComplexNumber	ComplexNumber.dividedBy(ComplexNumber other) Deprecated. Use divide.
void	ComplexNumber.dividedByEquals(ComplexNumber other) Deprecated. Use divideEquals.
void	ComplexNumber.divideEquals(ComplexNumber other) Inline arithmetic division of this by other: this.magnitude /= other.magnitude this.phase -= other.phase
void	ComplexNumber.dotTimesEquals(ComplexNumber other)
boolean	ComplexNumber.equals(ComplexNumber other, double effectiveZero)
void	ComplexNumber.minusEquals(ComplexNumber other)
void	ComplexNumber.plusEquals(ComplexNumber number) Inline addition between this and the complex number
void	ComplexNumber.scaledPlusEquals(double scaleFactor, ComplexNumber other)
ComplexNumber	ComplexNumber.times(ComplexNumber other) Arithmetic multiplication of this and other using polar coordinates: magnitude = this.magnitude * other.magnitude phase = this.phase + other.phase answer.realPart = magnitude * cos( phase ) answer.imaginaryPart = magnitude * sin( phase )
void	ComplexNumber.timesEquals(ComplexNumber other) Inline arithmetic multiplication of this and other: this.magnitude *= other.magnitude this.phase += other.phase

Constructors in gov.sandia.cognition.math with parameters of type ComplexNumber

Constructor and Description
ComplexNumber(ComplexNumber other) Copy constructor

Uses of ComplexNumber in gov.sandia.cognition.math.matrix

Methods in gov.sandia.cognition.math.matrix that return ComplexNumber

Modifier and Type	Method and Description
ComplexNumber	Matrix.logDeterminant() Computes the natural logarithm of the determinant of this.

Uses of ComplexNumber in gov.sandia.cognition.math.matrix.custom

Methods in gov.sandia.cognition.math.matrix.custom that return ComplexNumber

Modifier and Type	Method and Description
ComplexNumber	DenseMatrix.logDeterminant()
ComplexNumber	DiagonalMatrix.logDeterminant()
ComplexNumber	SparseMatrix.logDeterminant() Computes the natural logarithm of the determinant of this.

Uses of ComplexNumber in gov.sandia.cognition.math.matrix.decomposition

Methods in gov.sandia.cognition.math.matrix.decomposition that return ComplexNumber

Modifier and Type	Method and Description
ComplexNumber	AbstractEigenDecomposition.getEigenValue(int index) gets the indexed eigenvalue
ComplexNumber	EigenDecomposition.getEigenValue(int index) Gets the complex-valued (potentially real and/or imaginary) eigenvalue specified by the index "index"
ComplexNumber[]	AbstractEigenDecomposition.getEigenValues() Getter for eigenValues
ComplexNumber[]	EigenDecomposition.getEigenValues() Returns the array of complex-valued eigenvalues, the eigenvalues may be sorted in descending order of the magnitude of the eigenvalue, or they may be unsorted, depending on the specific implementation used
ComplexNumber	AbstractEigenDecomposition.getLogDeterminant() Computes the natural logarithm determinant from the collection of eigenvalues
ComplexNumber	EigenDecomposition.getLogDeterminant() Computes the natural logarithm determinant from the collection of eigenvalues

Methods in gov.sandia.cognition.math.matrix.decomposition with parameters of type ComplexNumber

Modifier and Type	Method and Description
protected void	AbstractEigenDecomposition.setEigenDecomposition(ComplexNumber[] eigenValues, Matrix eigenVectorsRealPart, Matrix eigenVectorsImaginaryPart, boolean sort) Sets the eigen decomposition for this
protected void	AbstractEigenDecomposition.setEigenValues(ComplexNumber[] eigenValues) setter for eigenValues
protected void	AbstractEigenDecomposition.setUnsortedEigenDecomposition(ComplexNumber[] eigenValues, Matrix eigenVectorsRealPart, Matrix eigenVectorsImaginaryPart) Creates a new eigendecomposition using the given eigenvalues and eigenvectors...
protected void	AbstractEigenDecomposition.sortAndSetEigenDecomposition(ComplexNumber[] eigenValues, Matrix eigenVectorsRealPart, Matrix eigenVectorsImaginaryPart) Sorts the eigendecomposition in descending order of the value of the magnitudes of the eigenvalues

Constructors in gov.sandia.cognition.math.matrix.decomposition with parameters of type ComplexNumber

Constructor and Description
AbstractEigenDecomposition(ComplexNumber[] eigenValues, Matrix eigenVectorsRealPart, Matrix eigenVectorsImaginaryPart) Stores the given eigenvalues and eigenvectors internally, the eigenvalues and eigenvectors will not be sorted.
AbstractEigenDecomposition(ComplexNumber[] eigenValues, Matrix eigenVectorsRealPart, Matrix eigenVectorsImaginaryPart, boolean sort) Creates a new eigendecomposition using the given eigenvalues and eigenvectors...

Uses of ComplexNumber in gov.sandia.cognition.math.matrix.mtj

Methods in gov.sandia.cognition.math.matrix.mtj that return ComplexNumber

Modifier and Type	Method and Description
ComplexNumber	AbstractMTJMatrix.logDeterminant()
ComplexNumber	DiagonalMatrixMTJ.logDeterminant()

Uses of ComplexNumber in gov.sandia.cognition.math.signals

Methods in gov.sandia.cognition.math.signals that return ComplexNumber

Modifier and Type	Method and Description
protected static ComplexNumber[]	FourierTransform.cooleyTukeyFFT(java.util.ArrayList<ComplexNumber> data) Computes the Cooley-Tukey Radix-2 Fast Fourier Transform (FFT).
static ComplexNumber[]	FourierTransform.discreteFourierTransform(java.util.ArrayList<java.lang.Double> data) Computes the brute-force discrete Fourier transform of the input data.
protected static ComplexNumber[]	FourierTransform.discreteFourierTransformComplex(java.util.ArrayList<ComplexNumber> data) Computes the brute-force discrete Fourier transform of the input data.

Methods in gov.sandia.cognition.math.signals that return types with arguments of type ComplexNumber

Modifier and Type	Method and Description
protected static java.util.ArrayList<ComplexNumber>	FourierTransform.convertToComplex(java.util.Collection<java.lang.Double> data) Converts the Collection of real data to complex numbers
java.util.List<ComplexNumber>	FourierTransform.evaluate(java.util.Collection<java.lang.Double> data) Computes the Fast Fourier Transform of the given input data using the Cooley-Tukey Radix-2 FFT, with brute-force DFT computation on odd subsequence computation.

Method parameters in gov.sandia.cognition.math.signals with type arguments of type ComplexNumber

Modifier and Type	Method and Description
protected static ComplexNumber[]	FourierTransform.cooleyTukeyFFT(java.util.ArrayList<ComplexNumber> data) Computes the Cooley-Tukey Radix-2 Fast Fourier Transform (FFT).
protected static ComplexNumber[]	FourierTransform.discreteFourierTransformComplex(java.util.ArrayList<ComplexNumber> data) Computes the brute-force discrete Fourier transform of the input data.
java.util.ArrayList<java.lang.Double>	FourierTransform.Inverse.evaluate(java.util.Collection<ComplexNumber> input)
static java.util.ArrayList<java.lang.Double>	FourierTransform.inverse(java.util.Collection<ComplexNumber> transformCoefficients) Static function that inverts a Fourier transform.