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Class Jampack.Zspec 

java.lang.Object
   |
   +----Jampack.Zspec
public class Zspec
extends Object
Zspec implements the spectral (eigenvalue-eigenvector) decomposition of a Hermitian matrix. Specifically, given a Hermitian matrix A there is a unitary matrix A and a real diagonal matrix D such that 
      D = UHAU.
Zspec implements U as a Zmat and D as a Zdiagmat. It returns a JampackException if A is not Hermitian.

Comments: The decomposition is computed using . Schur. Eventually, there will be code that takes advantage of symmetry.
Since the diagonal matrix is real, it will be reimplemented as a Ddiagmat later.

Variable Index

o D
The matrix of eigenvalues
o U
The matrix of eigenvectors

Constructor Index

o Zspec(Zmat)
Creates a Zspec from Zmat.

Variables

o U 
 public Zmat U
The matrix of eigenvectors

o D 
 public Zdiagmat D
The matrix of eigenvalues

Constructors

o Zspec 
 public Zspec(Zmat AA) throws JampackException
Creates a Zspec from Zmat. Throws a JampackException if the matrix is not Hermitian.

Parameters:
AA - A Zmat
Returns:
The spectral decomposition of A
Throws: JampackException
Thown if AA is not Hermitian.
Passed from below. 
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