ex1.frm

vb 调用matlab方法实例

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Matrix<LIB> for Visual Basic Example 1"
   ClientHeight    =   7020
   ClientLeft      =   945
   ClientTop       =   1005
   ClientWidth     =   5100
   LinkTopic       =   "Form1"
   PaletteMode     =   1  'UseZOrder
   ScaleHeight     =   7020
   ScaleWidth      =   5100
   Begin VB.TextBox txtEye 
      BeginProperty Font 
         Name            =   "Courier New"
         Size            =   9.75
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   855
      Left            =   240
      MultiLine       =   -1  'True
      TabIndex        =   5
      Top             =   4200
      Width           =   4575
   End
   Begin VB.TextBox txtRand 
      BeginProperty Font 
         Name            =   "Courier New"
         Size            =   9.75
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   855
      Left            =   240
      MultiLine       =   -1  'True
      TabIndex        =   2
      Top             =   480
      Width           =   4575
   End
   Begin VB.TextBox txtInv 
      BeginProperty Font 
         Name            =   "Courier New"
         Size            =   9.75
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   855
      Left            =   240
      MultiLine       =   -1  'True
      TabIndex        =   1
      Top             =   2280
      Width           =   4575
   End
   Begin VB.CommandButton Command1 
      Caption         =   "New Computation"
      Height          =   495
      Left            =   1320
      TabIndex        =   0
      Top             =   5880
      Width           =   2295
   End
   Begin VB.Label Label2 
      Caption         =   "="
      BeginProperty Font 
         Name            =   "MS Sans Serif"
         Size            =   13.5
         Charset         =   177
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   2400
      TabIndex        =   4
      Top             =   3480
      Width           =   255
   End
   Begin VB.Label Label1 
      Caption         =   "X"
      BeginProperty Font 
         Name            =   "MS Sans Serif"
         Size            =   13.5
         Charset         =   177
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   2400
      TabIndex        =   3
      Top             =   1560
      Width           =   255
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click()
' Get a normal random 3x3 matrix
 a = randn(3)
' Find its inverse matrix
 b = inv(a)
' Multiply (will be identity)
 c = mtimes(a, b)
' Show them all
 ShowMat a, txtRand
 ShowMat b, txtInv
 ShowMat c, txtEye
End Sub
Private Sub ShowMat(mat, where As TextBox)
 Dim m As Long, n As Long
 Dim t As String, d As String
 Dim matij As Double

 m = mat.rows
 n = mat.cols

 For i = 1 To m
  For j = 1 To n
   matij = mat.r2(i, j)
   d = Format$(matij, "####0.0##")
   d = Space$(10 - Len(d)) & d
   t = t & "  " & d
  Next
  t = t & Chr$(13) & Chr$(10)
 Next
 where.Text = t
End Sub