IGLib  1.7.2
The IGLib base library EXTENDED - with other lilbraries and applications.
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Static Public Member Functions | Static Private Member Functions | List of all members
alglib.hsschur Class Reference

Static Public Member Functions

static bool upperhessenbergschurdecomposition (ref double[,] h, int n, ref double[,] s)
 
static void internalschurdecomposition (ref double[,] h, int n, int tneeded, int zneeded, ref double[] wr, ref double[] wi, ref double[,] z, ref int info)
 
static bool upperhessenbergschurdecomposition (ref double[,] h, int n, ref double[,] s)
 
static void internalschurdecomposition (ref double[,] h, int n, int tneeded, int zneeded, ref double[] wr, ref double[] wi, ref double[,] z, ref int info)
 

Static Private Member Functions

static void internalauxschur (bool wantt, bool wantz, int n, int ilo, int ihi, ref double[,] h, ref double[] wr, ref double[] wi, int iloz, int ihiz, ref double[,] z, ref double[] work, ref double[] workv3, ref double[] workc1, ref double[] works1, ref int info)
 
static void aux2x2schur (ref double a, ref double b, ref double c, ref double d, ref double rt1r, ref double rt1i, ref double rt2r, ref double rt2i, ref double cs, ref double sn)
 
static double extschursign (double a, double b)
 
static int extschursigntoone (double b)
 
static void internalauxschur (bool wantt, bool wantz, int n, int ilo, int ihi, ref double[,] h, ref double[] wr, ref double[] wi, int iloz, int ihiz, ref double[,] z, ref double[] work, ref double[] workv3, ref double[] workc1, ref double[] works1, ref int info)
 
static void aux2x2schur (ref double a, ref double b, ref double c, ref double d, ref double rt1r, ref double rt1i, ref double rt2r, ref double rt2i, ref double cs, ref double sn)
 
static double extschursign (double a, double b)
 
static int extschursigntoone (double b)
 

Member Function Documentation

static bool alglib.hsschur.upperhessenbergschurdecomposition ( ref double  h[,],
int  n,
ref double  s[,] 
)
inlinestatic

References alglib.hsschur.internalschurdecomposition().

static void alglib.hsschur.internalschurdecomposition ( ref double  h[,],
int  n,
int  tneeded,
int  zneeded,
ref double[]  wr,
ref double[]  wi,
ref double  z[,],
ref int  info 
)
inlinestatic

References alglib.reflections.applyreflectionfromtheleft(), alglib.reflections.applyreflectionfromtheright(), alglib.ap.assert(), alglib.blas.copymatrix(), alglib.reflections.generatereflection(), alglib.hsschur.internalauxschur(), alglib.math.machineepsilon, alglib.blas.matrixvectormultiply(), alglib.math.minrealnumber, alglib.blas.pythag2(), alglib.blas.upperhessenberg1norm(), and alglib.blas.vectoridxabsmax().

Referenced by alglib.hsschur.upperhessenbergschurdecomposition().

static void alglib.hsschur.internalauxschur ( bool  wantt,
bool  wantz,
int  n,
int  ilo,
int  ihi,
ref double  h[,],
ref double[]  wr,
ref double[]  wi,
int  iloz,
int  ihiz,
ref double  z[,],
ref double[]  work,
ref double[]  workv3,
ref double[]  workc1,
ref double[]  works1,
ref int  info 
)
inlinestaticprivate

References alglib.rotations.applyrotationsfromtheleft(), alglib.rotations.applyrotationsfromtheright(), alglib.hsschur.aux2x2schur(), alglib.hsschur.extschursign(), alglib.reflections.generatereflection(), alglib.math.machineepsilon, alglib.math.minrealnumber, and alglib.blas.upperhessenberg1norm().

Referenced by alglib.hsschur.internalschurdecomposition().

static void alglib.hsschur.aux2x2schur ( ref double  a,
ref double  b,
ref double  c,
ref double  d,
ref double  rt1r,
ref double  rt1i,
ref double  rt2r,
ref double  rt2i,
ref double  cs,
ref double  sn 
)
inlinestaticprivate

References alglib.hsschur.extschursign(), alglib.hsschur.extschursigntoone(), alglib.math.machineepsilon, and alglib.blas.pythag2().

Referenced by alglib.hsschur.internalauxschur().

static double alglib.hsschur.extschursign ( double  a,
double  b 
)
inlinestaticprivate

Referenced by alglib.hsschur.aux2x2schur(), and alglib.hsschur.internalauxschur().

static int alglib.hsschur.extschursigntoone ( double  b)
inlinestaticprivate

Referenced by alglib.hsschur.aux2x2schur().

static bool alglib.hsschur.upperhessenbergschurdecomposition ( ref double  h[,],
int  n,
ref double  s[,] 
)
inlinestatic

References alglib.hsschur.internalschurdecomposition().

static void alglib.hsschur.internalschurdecomposition ( ref double  h[,],
int  n,
int  tneeded,
int  zneeded,
ref double[]  wr,
ref double[]  wi,
ref double  z[,],
ref int  info 
)
inlinestatic

References alglib.reflections.applyreflectionfromtheleft(), alglib.reflections.applyreflectionfromtheright(), alglib.ap.assert(), alglib.blas.copymatrix(), alglib.reflections.generatereflection(), alglib.hsschur.internalauxschur(), alglib.math.machineepsilon, alglib.blas.matrixvectormultiply(), alglib.math.minrealnumber, alglib.blas.pythag2(), alglib.apserv.touchint(), alglib.blas.upperhessenberg1norm(), and alglib.blas.vectoridxabsmax().

static void alglib.hsschur.internalauxschur ( bool  wantt,
bool  wantz,
int  n,
int  ilo,
int  ihi,
ref double  h[,],
ref double[]  wr,
ref double[]  wi,
int  iloz,
int  ihiz,
ref double  z[,],
ref double[]  work,
ref double[]  workv3,
ref double[]  workc1,
ref double[]  works1,
ref int  info 
)
inlinestaticprivate

References alglib.rotations.applyrotationsfromtheleft(), alglib.rotations.applyrotationsfromtheright(), alglib.hsschur.aux2x2schur(), alglib.hsschur.extschursign(), alglib.reflections.generatereflection(), alglib.math.machineepsilon, alglib.math.minrealnumber, and alglib.blas.upperhessenberg1norm().

static void alglib.hsschur.aux2x2schur ( ref double  a,
ref double  b,
ref double  c,
ref double  d,
ref double  rt1r,
ref double  rt1i,
ref double  rt2r,
ref double  rt2i,
ref double  cs,
ref double  sn 
)
inlinestaticprivate

References alglib.hsschur.extschursign(), alglib.hsschur.extschursigntoone(), alglib.math.machineepsilon, and alglib.blas.pythag2().

static double alglib.hsschur.extschursign ( double  a,
double  b 
)
inlinestaticprivate
static int alglib.hsschur.extschursigntoone ( double  b)
inlinestaticprivate
The documentation for this class was generated from the following file: