D4a2. Ordinary eigenvalue problems (general matrices) - Computational routines

Functions
Sub	Dgebak (Job As String, Side As String, N As Long, Ilo As Long, Ihi As Long, Scal() As Double, M As Long, V() As Double, Info As Long)
	Eigenvectors of original real general matrix by backward transformation on balanced matrix
Sub	Dgebal (Job As String, N As Long, A() As Double, Ilo As Long, Ihi As Long, Scal() As Double, Info As Long)
	Balancing of a real general matrix
Sub	Dgehrd (N As Long, Ilo As Long, Ihi As Long, A() As Double, Tau() As Double, Info As Long)
	Reduces a real general matrix to upper Hessenberg form
Sub	Dhsein (Side As String, Eigsrc As String, Initv As String, Selct() As Boolean, N As Long, H() As Double, Wr() As Double, Wi() As Double, Vl() As Double, Vr() As Double, Mm As Long, M As Long, Ifaill() As Long, Ifailr() As Long, Info As Long)
	Eigenvectors of Hessenberg matrix by inverse iteration method
Sub	Dhseqr (Job As String, Compz As String, N As Long, Ilo As Long, Ihi As Long, H() As Double, Wr() As Double, Wi() As Double, Z() As Double, Info As Long)
	Eigenvalues and Schur factorization of Hessenberg matrix by QR method
Sub	Dorghr (N As Long, Ilo As Long, Ihi As Long, A() As Double, Tau() As Double, Info As Long)
	Generates a transform matrix to Hessenberg form
Sub	Dormhr (Side As String, Trans As String, M As Long, N As Long, Ilo As Long, Ihi As Long, A() As Double, Tau() As Double, C() As Double, Info As Long)
	Multiplies by a transform matrix to Hessenberg form
Sub	Dtrevc3 (Side As String, Howmny As String, Selct() As Boolean, N As Long, T() As Double, Vl() As Double, Vr() As Double, Mm As Long, M As Long, Info As Long)
	Eigenvectors of quasi-triangular matrix of Schur factorization
Sub	Dtrexc (Compq As String, N As Long, T() As Double, Q() As Double, Ifst As Long, Ilst As Long, Info As Long)
	Reordering of real Schur factorization of real matrix
Sub	Dtrsen (Job As String, Compq As String, Selct() As Boolean, N As Long, T() As Double, Q() As Double, Wr() As Double, Wi() As Double, M As Long, S As Double, Sep As Double, Info As Long)
	Reordering of real Schur factorization of real matrix and condition numbers of cluster of eigenvalues and/or invariant subspace
Sub	Dtrsna (Job As String, Howmny As String, Selct() As Boolean, N As Long, T() As Double, Vl() As Double, Vr() As Double, S() As Double, Sep() As Double, Mm As Long, M As Long, Info As Long)
	Condition numbers for eigenvalues and/or eigenvectors of upper quasi-triangular matrix
Sub	Dtrsyl (Transa As String, Transb As String, Isign As Long, M As Long, N As Long, A() As Double, B() As Double, C() As Double, Scal As Double, Info As Long)
	Solve real Sylvester matrix equation

Detailed Description

This is the group of D4a2. Ordinary eigenvalue problems (general matrices) - Computational routines.