form1.frm

平均因子分解法

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   3195
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3195
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command1 
      Caption         =   "Command1"
      Height          =   495
      Left            =   960
      TabIndex        =   0
      Top             =   720
      Width           =   1215
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Private Sub Command1_Click()
Dim a() As Double
ReDim a(3, 3) As Double
a(1, 1) = 3: a(1, 2) = 2: a(1, 3) = 2
a(2, 1) = 2: a(2, 2) = 3: a(2, 3) = 2
a(3, 1) = 2: a(3, 2) = 2: a(3, 3) = 3
'a(1, 1) = 0.01074: a(1, 2) = 0.02756: a(1, 3) = -0.04538
'a(2, 1) = 0.02756: a(2, 2) = 0.29979: a(2, 3) = -0.17424
'a(3, 1) = -0.04538: a(3, 2) = -0.17424: a(3, 3) = 0.30944
Dim b() As Double
ReDim b(3) As Double
b(1) = 14: b(2) = 13: b(3) = 15
'b(1) = 6.719334: b(2) = -9.510928: b(3) = -7.098803
Dim x() As Double
ReDim x(3) As Double
Call cholesky(3, a, b, x)
Dim i As Integer
For i = 1 To 3
Debug.Print x(i)
Next i
End Sub