VERSION 5.00
Begin VB.Form Form1 
   AutoRedraw      =   -1  'True
   BackColor       =   &H00C0FFFF&
   Caption         =   "Form1"
   ClientHeight    =   5385
   ClientLeft      =   540
   ClientTop       =   1035
   ClientWidth     =   8520
   FillColor       =   &H00C0FFFF&
   FillStyle       =   0  'Solid
   LinkTopic       =   "Form1"
   ScaleHeight     =   5385
   ScaleWidth      =   8520
   Begin VB.CommandButton Command2 
      Caption         =   "End"
      Height          =   372
      Left            =   4080
      TabIndex        =   45
      Top             =   3600
      Width           =   612
   End
   Begin VB.PictureBox Picture2 
      BackColor       =   &H80000009&
      BorderStyle     =   0  'None
      Height          =   2010
      Left            =   6000
      Picture         =   "Modela.frx":0000
      ScaleHeight     =   2010
      ScaleWidth      =   2010
      TabIndex        =   37
      Top             =   2760
      Width           =   2010
   End
   Begin VB.TextBox Text13 
      Height          =   288
      Left            =   7440
      TabIndex        =   33
      Text            =   "1000"
      Top             =   1080
      Width           =   492
   End
   Begin VB.TextBox Text12 
      Height          =   288
      Left            =   5400
      TabIndex        =   32
      Text            =   "2000"
      Top             =   1080
      Width           =   492
   End
   Begin VB.TextBox Text11 
      Height          =   288
      Left            =   3360
      TabIndex        =   30
      Text            =   "5000"
      Top             =   1080
      Width           =   492
   End
   Begin VB.TextBox Text10 
      Height          =   288
      Left            =   5760
      TabIndex        =   28
      Text            =   "1000"
      Top             =   480
      Width           =   492
   End
   Begin VB.TextBox Text9 
      Height          =   288
      Left            =   3600
      TabIndex        =   26
      Text            =   "2000"
      Top             =   480
      Width           =   492
   End
   Begin VB.TextBox Text8 
      Height          =   288
      Left            =   1560
      TabIndex        =   24
      Text            =   "5000"
      Top             =   480
      Width           =   492
   End
   Begin VB.Frame Frame4 
      Caption         =   "Pool D"
      BeginProperty Font 
         Name            =   "MS Sans Serif"
         Size            =   8.25
         Charset         =   0
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   972
      Left            =   6360
      TabIndex        =   21
      Top             =   360
      Width           =   972
      Begin VB.TextBox Text7 
         Height          =   288
         Left            =   360
         TabIndex        =   23
         Text            =   "400"
         Top             =   600
         Width           =   492
      End
      Begin VB.TextBox Text6 
         Height          =   288
         Left            =   360
         TabIndex        =   22
         Text            =   "0"
         Top             =   240
         Width           =   492
      End
      Begin VB.Label Label29 
         Caption         =   "D2"
         Height          =   252
         Left            =   120
         TabIndex        =   49
         Top             =   600
         Width           =   252
      End
      Begin VB.Label Label28 
         Caption         =   "D1"
         Height          =   252
         Left            =   120
         TabIndex        =   48
         Top             =   240
         Width           =   252
      End
   End
   Begin VB.Frame Frame3 
      Caption         =   "Pool C"
      BeginProperty Font 
         Name            =   "MS Sans Serif"
         Size            =   8.25
         Charset         =   0
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   972
      Left            =   4320
      TabIndex        =   16
      Top             =   360
      Width           =   972
      Begin VB.TextBox Text5 
         Height          =   288
         Left            =   360
         TabIndex        =   20
         Text            =   "500"
         Top             =   600
         Width           =   492
      End
      Begin VB.TextBox Text4 
         Height          =   288
         Left            =   360
         TabIndex        =   19
         Text            =   "0"
         Top             =   240
         Width           =   492
      End
      Begin VB.Label Label19 
         Caption         =   "C2"
         Height          =   252
         Left            =   120
         TabIndex        =   18
         Top             =   600
         Width           =   252
      End
      Begin VB.Label Label18 
         Caption         =   "C1"
         Height          =   252
         Left            =   120
         TabIndex        =   17
         Top             =   240
         Width           =   252
      End
   End
   Begin VB.Frame Frame2 
      Caption         =   "Pool B"
      BeginProperty Font 
         Name            =   "MS Sans Serif"
         Size            =   8.25
         Charset         =   0
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   972
      Left            =   2280
      TabIndex        =   11
      Top             =   360
      Width           =   972
      Begin VB.TextBox Text3 
         Height          =   288
         Left            =   360
         TabIndex        =   13
         Text            =   "600"
         Top             =   600
         Width           =   492
      End
      Begin VB.TextBox Text2 
         Height          =   288
         Left            =   360
         TabIndex        =   12
         Text            =   "0"
         Top             =   240
         Width           =   492
      End
      Begin VB.Label Label17 
         Caption         =   "B2"
         Height          =   252
         Left            =   120
         TabIndex        =   15
         Top             =   600
         Width           =   252
      End
      Begin VB.Label Label16 
         Caption         =   "B1"
         Height          =   252
         Left            =   120
         TabIndex        =   14
         Top             =   240
         Width           =   252
      End
   End
   Begin VB.Frame Frame1 
      Caption         =   "Pool A"
      BeginProperty Font 
         Name            =   "MS Sans Serif"
         Size            =   8.25
         Charset         =   0
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   972
      Left            =   360
      TabIndex        =   8
      Top             =   360
      Width           =   972
      Begin VB.TextBox Text1 
         Height          =   288
         Left            =   360
         TabIndex        =   9
         Text            =   "90"
         Top             =   240
         Width           =   492
      End
      Begin VB.Label Label15 
         Caption         =   "A1"
         Height          =   252
         Left            =   120
         TabIndex        =   10
         Top             =   240
         Width           =   252
      End
   End
   Begin VB.PictureBox Picture1 
      BackColor       =   &H80000009&
      BorderStyle     =   0  'None
      Height          =   2010
      Left            =   1680
      Picture         =   "Modela.frx":D3BA
      ScaleHeight     =   2010
      ScaleWidth      =   2010
      TabIndex        =   7
      Top             =   2760
      Width           =   2010
   End
   Begin VB.CommandButton Command1 
      Caption         =   "Start"
      Height          =   372
      Left            =   4080
      TabIndex        =   0
      Top             =   3000
      Width           =   612
   End
   Begin VB.Label Label30 
      BackStyle       =   0  'Transparent
      Caption         =   "-1"
      BeginProperty Font 
         Name            =   "Small Fonts"
         Size            =   6
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   135
      Left            =   5760
      TabIndex        =   50
      Top             =   3560
      Width           =   135
   End
   Begin VB.Line Line19 
      BorderWidth     =   2
      X1              =   7920
      X2              =   7320
      Y1              =   1920
      Y2              =   1320
   End
   Begin VB.Line Line13 
      BorderWidth     =   2
      X1              =   5280
      X2              =   5880
      Y1              =   1320
      Y2              =   1920
   End
   Begin VB.Line Line10 
      BorderWidth     =   2
      X1              =   3240
      X2              =   3840
      Y1              =   1320
      Y2              =   1920
   End
   Begin VB.Label Label23 
      Alignment       =   2  'Center
      BackStyle       =   0  'Transparent
      Caption         =   "Pool Sizes"
      BeginProperty Font 
         Name            =   "MS Sans Serif"
         Size            =   8.25
         Charset         =   0
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   252
      Left            =   6360
      TabIndex        =   47
      Top             =   2400
      Width           =   1332
   End
   Begin VB.Label Label13 
      Alignment       =   2  'Center
      BackStyle       =   0  'Transparent
      Caption         =   "Isotope Abundance"
      BeginProperty Font 
         Name            =   "MS Sans Serif"
         Size            =   8.25
         Charset         =   0
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   252
      Left            =   1680
      TabIndex        =   46
      Top             =   2400
      Width           =   2052
   End
   Begin VB.Label Label14 
      BackStyle       =   0  'Transparent
      Caption         =   "B4"
      Height          =   252
      Left            =   3960
      TabIndex        =   44
      Top             =   1080
      Width           =   252
   End
   Begin VB.Label Label12 
      Alignment       =   2  'Center
      BackStyle       =   0  'Transparent
      Caption         =   "nmol.gfw"
      Height          =   255
      Left            =   5160
      TabIndex        =   43
      Top             =   3600
      Width           =   615
      WordWrap        =   -1  'True
   End
   Begin VB.Label Label11 
      BackStyle       =   0  'Transparent
      Caption         =   "1000"
      Height          =   252
      Left            =   5520
      TabIndex        =   42
      Top             =   2640
      Width           =   372
   End
   Begin VB.Label Label10 
      BackStyle       =   0  'Transparent
      Caption         =   "0"
      Height          =   252
      Left            =   5760
      TabIndex        =   41
      Top             =   4680
      Width           =   132
   End
   Begin VB.Label Label9 
      BackStyle       =   0  'Transparent
      Caption         =   "Time (h)"
      Height          =   252
      Left            =   6720
      TabIndex        =   40
      Top             =   4920
      Width           =   612
   End
   Begin VB.Label Label8 
      BackStyle       =   0  'Transparent
      Caption         =   "1.0"
      Height          =   252
      Left            =   7920
      TabIndex        =   39
      Top             =   4800
      Width           =   252
   End
   Begin VB.Label Label1 
      BackStyle       =   0  'Transparent
      Caption         =   "0"
      Height          =   252
      Left            =   6000
      TabIndex        =   38
      Top             =   4800
      Width           =   132
   End
   Begin VB.Label Label27 
      BackStyle       =   0  'Transparent
      Caption         =   "C4 - D3"
      Height          =   252
      Left            =   5760
      TabIndex        =   36
      Top             =   1560
      Width           =   612
   End
   Begin VB.Label Label26 
      BackStyle       =   0  'Transparent
      Caption         =   "B4 - C3"
      Height          =   252
      Left            =   3720
      TabIndex        =   35
      Top             =   1560
      Width           =   612
   End
   Begin VB.Line Line34 
      X1              =   3120
      X2              =   3240
      Y1              =   1560
      Y2              =   1560
   End
   Begin VB.Line Line33 
      X1              =   3480
      X2              =   3240
      Y1              =   1200
      Y2              =   1560
   End
   Begin VB.Line Line32 
      X1              =   3480
      X2              =   3480
      Y1              =   1200
      Y2              =   600
   End
   Begin VB.Line Line31 
      X1              =   3360
      X2              =   3480
      Y1              =   600
      Y2              =   600
   End
   Begin VB.Line Line30 
      X1              =   5160
      X2              =   5280
      Y1              =   1560
      Y2              =   1560
   End
   Begin VB.Line Line29 
      X1              =   5280
      X2              =   5520
      Y1              =   1560
      Y2              =   1200
   End
   Begin VB.Line Line28 
      X1              =   5520
      X2              =   5520
      Y1              =   1200
      Y2              =   600
   End
   Begin VB.Line Line27 
      X1              =   5400
      X2              =   5520
      Y1              =   600
      Y2              =   600
   End
   Begin VB.Label Label25 
      BackStyle       =   0  'Transparent
      Caption         =   "D4"
      Height          =   252
      Left            =   8040
      TabIndex        =   34
      Top             =   1080
      Width           =   252
   End
   Begin VB.Line Line26 
      X1              =   7200
      X2              =   7320
      Y1              =   1560
      Y2              =   1560
   End
   Begin VB.Line Line24 
      X1              =   7440
      X2              =   7560
      Y1              =   600
      Y2              =   600
   End
   Begin VB.Line Line23 
      X1              =   7320
      X2              =   7560
      Y1              =   1560
      Y2              =   1200
   End
   Begin VB.Line Line22 
      X1              =   7560
      X2              =   7560
      Y1              =   600
      Y2              =   1200
   End
   Begin VB.Label Label24 
      BackStyle       =   0  'Transparent
      Caption         =   "C4"
      Height          =   252
      Left            =   6000
      TabIndex        =   31
      Top             =   1080
      Width           =   252
   End
   Begin VB.Label Label22 
      BackStyle       =   0  'Transparent
      Caption         =   "D3"
      Height          =   252
      Left            =   5880
      TabIndex        =   29
      Top             =   240
      Width           =   252
   End
   Begin VB.Label Label21 
      BackStyle       =   0  'Transparent
      Caption         =   "C3"
      Height          =   252
      Left            =   3720
      TabIndex        =   27
      Top             =   240
      Width           =   252
   End
   Begin VB.Label Label20 
      BackStyle       =   0  'Transparent
      Caption         =   "B3"
      Height          =   252
      Left            =   1680
      TabIndex        =   25
      Top             =   240
      Width           =   252
   End
   Begin VB.Line Line21 
      BorderWidth     =   2
      X1              =   7920
      X2              =   7920
      Y1              =   1800
      Y2              =   1920
   End
   Begin VB.Line Line20 
      BorderWidth     =   2
      X1              =   7800
      X2              =   7920
      Y1              =   1920
      Y2              =   1920
   End
   Begin VB.Line Line18 
      BorderWidth     =   2
      X1              =   8040
      X2              =   8160
      Y1              =   960
      Y2              =   840
   End
   Begin VB.Line Line17 
      BorderWidth     =   2
      X1              =   8040
      X2              =   8160
      Y1              =   720
      Y2              =   840
   End
   Begin VB.Line Line16 
      BorderWidth     =   2
      X1              =   7320
      X2              =   8160
      Y1              =   840
      Y2              =   840
   End
   Begin VB.Line Line15 
      BorderWidth     =   2
      X1              =   5880
      X2              =   5880
      Y1              =   1800
      Y2              =   1920
   End
   Begin VB.Line Line14 
      BorderWidth     =   2
      X1              =   5760
      X2              =   5880
      Y1              =   1920
      Y2              =   1920
   End
   Begin VB.Line Line12 
      BorderWidth     =   2
      X1              =   3840
      X2              =   3840
      Y1              =   1800
      Y2              =   1920
   End
   Begin VB.Line Line11 
      BorderWidth     =   2
      X1              =   3720
      X2              =   3840
      Y1              =   1920
      Y2              =   1920
   End
   Begin VB.Line Line9 
      BorderWidth     =   2
      X1              =   6240
      X2              =   6360
      Y1              =   960
      Y2              =   840
   End
   Begin VB.Line Line7 
      BorderWidth     =   2
      X1              =   6240
      X2              =   6360
      Y1              =   720
      Y2              =   840
   End
   Begin VB.Line Line8 
      BorderWidth     =   2
      X1              =   5280
      X2              =   6360
      Y1              =   840
      Y2              =   840
   End
   Begin VB.Line Line6 
      BorderWidth     =   2
      X1              =   4200
      X2              =   4320
      Y1              =   720
      Y2              =   840
   End
   Begin VB.Line Line5 
      BorderWidth     =   2
      X1              =   4200
      X2              =   4320
      Y1              =   960
      Y2              =   840
   End
   Begin VB.Line Line4 
      BorderWidth     =   2
      X1              =   3240
      X2              =   4320
      Y1              =   840
      Y2              =   840
   End
   Begin VB.Line Line3 
      BorderWidth     =   2
      X1              =   2160
      X2              =   2280
      Y1              =   960
      Y2              =   840
   End
   Begin VB.Line Line2 
      BorderWidth     =   2
      X1              =   2160
      X2              =   2280
      Y1              =   720
      Y2              =   840
   End
   Begin VB.Line Line1 
      BorderWidth     =   2
      X1              =   2280
      X2              =   1320
      Y1              =   840
      Y2              =   840
   End
   Begin VB.Label Label7 
      Alignment       =   2  'Center
      BackColor       =   &H80000009&
      BackStyle       =   0  'Transparent
      Caption         =   "Isotope Abundance (atom %)"
      Height          =   612
      Left            =   720
      TabIndex        =   6
      Top             =   3480
      Width           =   852
   End
   Begin VB.Label Label6 
      Alignment       =   2  'Center
      BackColor       =   &H80000009&
      BackStyle       =   0  'Transparent
      Caption         =   "Time (h)"
      Height          =   252
      Left            =   2280
      TabIndex        =   5
      Top             =   4920
      Width           =   972
   End
   Begin VB.Label Label5 
      Alignment       =   1  'Right Justify
      BackColor       =   &H80000009&
      BackStyle       =   0  'Transparent
      Caption         =   "100"
      Height          =   252
      Left            =   1320
      TabIndex        =   4
      Top             =   2640
      Width           =   252
   End
   Begin VB.Label Label4 
      BackColor       =   &H80000009&
      BackStyle       =   0  'Transparent
      Caption         =   "1.0"
      Height          =   252
      Left            =   3600
      TabIndex        =   3
      Top             =   4800
      Width           =   252
   End
   Begin VB.Label Label3 
      Alignment       =   1  'Right Justify
      BackColor       =   &H80000009&
      BackStyle       =   0  'Transparent
      Caption         =   "0"
      Height          =   252
      Left            =   1440
      TabIndex        =   2
      Top             =   4680
      Width           =   132
   End
   Begin VB.Label Label2 
      BackColor       =   &H80000009&
      BackStyle       =   0  'Transparent
      Caption         =   "0"
      Height          =   252
      Left            =   1680
      TabIndex        =   1
      Top             =   4800
      Width           =   132
   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()
Picture1.Refresh
Picture2.Refresh
Mx = 1
My1 = 100
My2 = 1000
A1 = Text1.Text
B1 = Text2.Text
B2 = Text3.Text
C1 = Text4.Text
C2 = Text5.Text
D1 = Text6.Text
D2 = Text7.Text
B3 = Text8.Text
C3 = Text9.Text
D3 = Text10.Text
B4 = Text11.Text
C4 = Text12.Text
D4 = Text13.Text
z = Mx / 2000
For t = 0 To Mx Step z
B1 = (B1 * B2 + A1 * z * B3) / (B2 + z * B3)
B2 = B2 + z * B3
B1 = (B1 * B2 - B1 * z * B4) / (B2 - z * B4)
B2 = B2 - z * B4
C1 = (C1 * C2 + B1 * z * C3) / (C2 + z * C3)
C2 = C2 + z * C3
C1 = (C1 * C2 - C1 * z * C4) / (C2 - z * C4)
C2 = C2 - z * C4
D1 = (D1 * D2 + C1 * z * D3) / (D2 + z * D3)
D2 = D2 + z * D3
D1 = (D1 * D2 - D1 * z * D4) / (D2 - z * D4)
D2 = D2 - z * D4
X = t
Y = A1
X = (X * 2000 / Mx)
Y = 2000 - (Y * 2000 / My1)
Picture1.PSet (X, Y), QBColor(0)
Y = B1
Y = 2000 - (Y * 2000 / My1)
Picture1.PSet (X, Y), QBColor(10)
Y = C1
Y = 2000 - (Y * 2000 / My1)
Picture1.PSet (X, Y), QBColor(9)
Y = D1
Y = 2000 - (Y * 2000 / My1)
Picture1.PSet (X, Y), QBColor(12)
Y = B2
Y = 2000 - (Y * 2000 / My2)
Picture2.PSet (X, Y), QBColor(10)
Y = C2
Y = 2000 - (Y * 2000 / My2)
Picture2.PSet (X, Y), QBColor(9)
Y = D2
Y = 2000 - (Y * 2000 / My2)
Picture2.PSet (X, Y), QBColor(12)
Next t
End Sub

Private Sub Command2_Click()
Unload Form1
End Sub