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DLARFG Class

-- LAPACK auxiliary routine (version 3.1) -- Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. November 2006 Purpose ======= DLARFG generates a real elementary reflector H of order n, such that H * ( alpha ) = ( beta ), H' * H = I. ( x ) ( 0 ) where alpha and beta are scalars, and x is an (n-1)-element real vector. H is represented in the form H = I - tau * ( 1 ) * ( 1 v' ) , ( v ) where tau is a real scalar and v is a real (n-1)-element vector. If the elements of x are all zero, then tau = 0 and H is taken to be the unit matrix. Otherwise 1 .LE. tau .LE. 2.
Inheritance Hierarchy
SystemObject
  DotNumerics.LinearAlgebra.CSLapackDLARFG

Namespace: DotNumerics.LinearAlgebra.CSLapack
Assembly: DWSIM.MathOps.DotNumerics (in DWSIM.MathOps.DotNumerics.dll) Version: 1.0.0.0 (1.0.0.0)
Syntax
public class DLARFG
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The DLARFG type exposes the following members.

Constructors
Methods
 NameDescription
Public methodRun Purpose ======= DLARFG generates a real elementary reflector H of order n, such that H * ( alpha ) = ( beta ), H' * H = I. ( x ) ( 0 ) where alpha and beta are scalars, and x is an (n-1)-element real vector. H is represented in the form H = I - tau * ( 1 ) * ( 1 v' ) , ( v ) where tau is a real scalar and v is a real (n-1)-element vector. If the elements of x are all zero, then tau = 0 and H is taken to be the unit matrix. Otherwise 1 .LE. tau .LE. 2.
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Fields
 NameDescription
Private field_dlamch 
Private field_dlapy2 
Private field_dnrm2 
Private field_dscal 
Private fieldStatic memberONE 
Private fieldStatic memberZERO 
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Extension Methods
 NameDescription
Public Extension MethodGetEnumNames
(Defined by General)
Public Extension MethodIsValidDouble
(Defined by General)
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See Also