Class GeneralizedEigenvalue2

  • All Implemented Interfaces:
    java.io.Serializable

    public class GeneralizedEigenvalue2
    extends java.lang.Object
    implements java.io.Serializable
    See Also:
    Serialized Form
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      private void dchkq3​(boolean[] dotype, int nm, int[] mval, int nn, int[] nval, int nnb, int[] nbval, int[] nxval, double thresh, double[][] A, double[][] COPYA, double[] s, double[] tau, double[] work, int[] iwork)  
      void dchkq3_test()
      This dchkqr_test routine is a port of a portion of the version 3.1.1 LAPACK test routine DCHKAA by Univ. of Tennessee, Univ.
      void dgeqp3​(int m, int n, double[][] A, int lda, int[] jpvt, double[] tau, double[] work, int lwork, int[] info)  
      private void dlaqp2​(int m, int n, int offset, double[][] A, int lda, int[] jpvt, double[] tau, double[] vn1, double[] vn2, double[] work)  
      private void dlaqps​(int m, int n, int offset, int nb, int[] kb, double[][] A, int lda, int[] jpvt, double[] tau, double[] vn1, double[] vn2, double[] auxv, double[][] F, int ldf)  
      private double dqpt01​(int m, int n, int k, double[][] A, double[][] AF, int lda, double[] tau, int[] jpvt, double[] work, int lwork)  
      private double dqrt11​(int m, int k, double[][] A, int lda, double[] tau, double[] work, int lwork)  
      private double dqrt12​(int m, int n, double[][] A, int lda, double[] s, double[] work, int lwork)  
      void xlaenv​(int ispec, int nvalue)
      This is a port of version 3.1 LAPACK auxiliary routine XLAENV.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

      • GeneralizedEigenvalue2

        public GeneralizedEigenvalue2()
    • Method Detail

      • dchkq3_test

        public void dchkq3_test()
        This dchkqr_test routine is a port of a portion of the version 3.1.1 LAPACK test routine DCHKAA by Univ. of Tennessee, Univ. Of California Berkeley and NAG Ltd., January, 2007. and some values from the test data file dtest.in.
      • dchkq3

        private void dchkq3​(boolean[] dotype,
                            int nm,
                            int[] mval,
                            int nn,
                            int[] nval,
                            int nnb,
                            int[] nbval,
                            int[] nxval,
                            double thresh,
                            double[][] A,
                            double[][] COPYA,
                            double[] s,
                            double[] tau,
                            double[] work,
                            int[] iwork)
      • dqrt12

        private double dqrt12​(int m,
                              int n,
                              double[][] A,
                              int lda,
                              double[] s,
                              double[] work,
                              int lwork)
      • dqpt01

        private double dqpt01​(int m,
                              int n,
                              int k,
                              double[][] A,
                              double[][] AF,
                              int lda,
                              double[] tau,
                              int[] jpvt,
                              double[] work,
                              int lwork)
      • dqrt11

        private double dqrt11​(int m,
                              int k,
                              double[][] A,
                              int lda,
                              double[] tau,
                              double[] work,
                              int lwork)
      • dgeqp3

        public void dgeqp3​(int m,
                           int n,
                           double[][] A,
                           int lda,
                           int[] jpvt,
                           double[] tau,
                           double[] work,
                           int lwork,
                           int[] info)
      • dlaqps

        private void dlaqps​(int m,
                            int n,
                            int offset,
                            int nb,
                            int[] kb,
                            double[][] A,
                            int lda,
                            int[] jpvt,
                            double[] tau,
                            double[] vn1,
                            double[] vn2,
                            double[] auxv,
                            double[][] F,
                            int ldf)
      • dlaqp2

        private void dlaqp2​(int m,
                            int n,
                            int offset,
                            double[][] A,
                            int lda,
                            int[] jpvt,
                            double[] tau,
                            double[] vn1,
                            double[] vn2,
                            double[] work)
      • xlaenv

        public void xlaenv​(int ispec,
                           int nvalue)
        This is a port of version 3.1 LAPACK auxiliary routine XLAENV. Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. November 2006 .. Scalar Arguments .. INTEGER ISPEC, NVALUE .. Purpose ======= XLAENV sets certain machine- and problem-dependent quantities which will later be retrieved by ILAENV. Arguments ========= ISPEC (input) INTEGER Specifies the parameter to be set in the COMMON array IPARMS. = 1: the optimal blocksize; if this value is 1, an unblocked algorithm will give the best performance. = 2: the minimum block size for which the block routine should be used; if the usable block size is less than this value, an unblocked routine should be used. = 3: the crossover point (in a block routine, for N less than this value, an unblocked routine should be used) = 4: the number of shifts, used in the nonsymmetric eigenvalue routines = 5: the minimum column dimension for blocking to be used; rectangular blocks must have dimension at least k by m, where k is given by ILAENV(2,...) and m by ILAENV(5,...) = 6: the crossover point for the SVD (when reducing an m by n matrix to bidiagonal form, if max(m,n)/min(m,n) exceeds this value, a QR factorization is used first to reduce the matrix to a triangular form) = 7: the number of processors = 8: another crossover point, for the multishift QR and QZ methods for nonsymmetric eigenvalue problems. = 9: maximum size of the subproblems at the bottom of the computation tree in the divide-and-conquer algorithm (used by xGELSD and xGESDD) =10: ieee NaN arithmetic can be trusted not to trap =11: infinity arithmetic can be trusted not to trap NVALUE (input) INTEGER The value of the parameter specified by ISPEC.