mọi người cho mình hỏi đoạn code này là của ngôn ngữ gì? nội dung thế nào?

[tungnicol]

Dim i, j, Position, LastPoint As Variant
Dim d(100001), A(100001), An(100001), C(100001), Linia(100001), Population(3) As Variant
Dim DataTrainLength, NumberOfAcc, Acc, N, Comp, Pulse1, Pulse2 As Integer
Dim StartAcc As Boolean
Dim Sequence, AccComplete As String
Private Sub Command1_Click()
Timer1.Interval = 0
NumberOfAcc = HScroll8.Value
Acc = 1
StartAcc = True
For i = 1 To DataTrainLength + 44
A(i) = 0
Next i
Picture3.Cls
Timer1.Interval = HScroll1.Value
End Sub
Private Sub Command2_Click()
Timer1.Interval = 0
End Sub
Private Sub Command3_Click()
Picture2.Cls
Text11.Text = ""
Text12.Text = ""
Text13.Text = ""
Text14.Text = ""
Text15.Text = ""
Text16.Text = ""
Comp = 1
j = 1
For i = 1 To N / (2 * HScroll3.Value)
An(i) = An(i) / NumberOfAcc
j = j + 1
Next i
Ntotal = j - 1
LastPoint = Ntotal - 3
For i = 0 To 3
Population(i) = 0
Next i
If HScroll9.Value > HScroll2.Value - 2 Then HScroll9.Value = HScroll2.Value - 2
Position = HScroll9.Value
For i = 1 To LastPoint
Picture2.PSet (Picture2.Width * i / (HScroll2.Value), (Picture2.Height - 700 * Log(An(i)))), RGB(0, 255, 255)
Next i
Picture2.Line (Picture2.Width * Position / (HScroll2.Value), (Picture2.Height - 700 * Log(An(Position))))-Step(0, 200), RGB(255, 255, 255)
End Sub
Private Sub Command4_Click()
Summa1 = 0
Summa2 = 0
Summa3 = 0
Summa4 = 0
For i = Position To LastPoint
Summa1 = Summa1 + i
Summa2 = Summa2 + i * i
If Comp = 1 Then Summa3 = Summa3 + Log(An(i))
If Comp > 1 Then Summa3 = Summa3 + Log(C(i))
If Comp = 1 Then Summa4 = Summa4 + i * Log(An(i))
If Comp > 1 Then Summa4 = Summa4 + i * Log(C(i))
Next i
Е = Summa1 * Summa1 - (LastPoint - Position + 1) * Summa2
Slope = ((LastPoint - Position + 1) * Summa4 - Summa1 * Summa3) / Е
Ll = (Summa1 * Summa4 - Summa2 * Summa3) / Е
Population(Comp) = Exp(Ll)
For i = 1 To LastPoint
Linia(i) = Ll - Slope * i
Next i
For i = 1 To LastPoint
Picture2.PSet (Picture2.Width * i / HScroll2.Value, (Picture2.Height - 700 * (Linia(i)))), RGB(255, 0, 0)
Next i
If Comp = 1 Then Text11.Text = Format(HScroll3.Value / (Slope * 10), "#,##0.0") & " ms"
If Comp = 2 Then Text13.Text = Format(HScroll3.Value / (Slope * 10), "#,##0.0") & " ms"
If Comp = 3 Then Text15.Text = Format(HScroll3.Value / (Slope * 10), "#,##0.0") & " ms"
End Sub
Private Sub Command5_Click()
j = 0
Subtr:
j = j + 1
If Comp = 1 Then C(j) = An(j) - Exp(Linia(j))
If Comp > 1 Then C(j) = C(j) - Exp(Linia(j))
If C(j) > 0.5 Then GoTo Subtr
LastPoint = j - 1
For i = 1 To LastPoint
Picture2.PSet (Picture2.Width * i / HScroll2.Value, Picture2.Height - 700 * Log(C(i))), RGB(0, 255, 255)
Next i
Comp = Comp + 1
Position = 1
HScroll9.Value = 1
End Sub
Private Sub Command6_Click()
For i = 1 To 3
Total = Total + Population(i)
Next i
Population(1) = Int(100 * Population(1) / Total) / 100
If Comp > 2 Then Population(2) = Int(100 * Population(2) / Total) / 100 Else Population(2) = 1 - Population(1)
If Comp > 2 Then Population(3) = 1 - Population(1) - Population(2) Else Population(3) = 0
Text12.Text = Format(Population(1), "0.00")
Text14.Text = Format(Population(2), "0.00")
Text16.Text = Format(Population(3), "0.00")
StartAcc = False
Acc = 1
Timer1.Interval = HScroll1.Value
End Sub
Private Sub Form_Load()
Timer1.Interval = 10
Pulse1 = 10
Pulse2 = 20
HScroll1.Value = 100
HScroll2.Value = 1
HScroll3.Value = 1
HScroll4.Value = Pulse1
HScroll5.Value = Pulse2
HScroll6.Value = 60
HScroll7.Value = 127
HScroll8.Value = 1
HScroll9.Value = 1
LastPoint = 3
NumberOfAcc = 1
Text1.Text = HScroll1.Value
Text2.Text = HScroll2.Value
Text3.Text = HScroll3.Value * 50
Text4.Text = (HScroll4.Value + 1) * 0.5
Text5.Text = (HScroll5.Value + 1) * 0.5
Text6.Text = HScroll6.Value / 4
Text7.Text = 9.8 + HScroll7.Value / 255
Text8.Text = HScroll8.Value
Text17.Text = HScroll9.Value
Out &H37A, 1
Out &H378, 1 'Mode 1 - Master Reset
Out &H37A, 9
Out &H37A, 1
Out &H378, 2 'Mode 2 - Pulse 1
Out &H37A, 9
Out &H37A, 1
Out &H37C, Pulse1 'Pulse 1 duration
Out &H378, 4 'Pulse 2
Out &H37A, 9
Out &H37A, 1
Out &H37C, Pulse2 'Pulse 2 duration
Out &H378, 64 'Run
Out &H37A, 9
Out &H37A, 1
Call DataTrain
End Sub
Private Sub HScroll1_Change()
Timer1.Interval = HScroll1.Value
Text1.Text = HScroll1.Value
Call DataTrain
End Sub
Private Sub HScroll2_Change()
Text2.Text = HScroll2.Value
Call DataTrain
End Sub
Private Sub HScroll3_Change()
Text3.Text = HScroll3.Value
Call DataTrain
End Sub
Private Sub HScroll4_Change()
Pulse1 = HScroll4.Value
Out &H378, 2 'Mode 2 - Pulse 1
Out &H37A, 9
Out &H37A, 1
Out &H37C, Pulse1 'Pulse 1 duration
Text4.Text = (HScroll4.Value + 1) * 0.5
Out &H378, 64 'Run
Out &H37A, 9
Out &H37A, 1
Call DataTrain
End Sub
Private Sub HScroll5_Change()
Pulse2 = HScroll5.Value
Out &H378, 4 'Mode 4 - Pulse 2
Out &H37A, 9
Out &H37A, 1
Out &H37C, Pulse2 'Pulse 2 duration
Text5.Text = (HScroll5.Value + 1) * 0.5
Out &H378, 4 'Run
Out &H37A, 9
Out &H37A, 1
Call DataTrain
End Sub
Private Sub HScroll6_Change()
Out &H378, 20
Out &H37A, 9
Out &H37A, 1
Out &H37C, HScroll6.Value
Out &H378, 16
Out &H37A, 9
Out &H37A, 1
Text6.Text = HScroll6.Value / 4
End Sub
Private Sub HScroll7_Change()
Out &H378, 24
Out &H37A, 9
Out &H37A, 1
Out &H37C, HScroll7.Value
Out &H378, 16
Out &H37A, 9
Out &H37A, 1
Text7.Text = 9.8 + HScroll7.Value / 255
End Sub
Private Sub HScroll8_Change()
Text8.Text = HScroll8.Value
NumberOfAcc = HScroll8.Value
End Sub
Private Sub HScroll9_Change()
If Comp = 1 Then Picture2.Line (Picture2.Width * Position / HScroll2.Value, (Picture2.Height - 700 * Log(An(Position))))-Step(0, 200), RGB(0, 0, 0)
If Comp = 2 Then Picture2.Line (Picture2.Width * Position / HScroll2.Value, Picture2.Height - 700 * Log(C(Position)))-Step(0, 200), RGB(0, 0, 0)
Position = HScroll9.Value
Text17.Text = HScroll9.Value
For i = 1 To LastPoint
If Comp = 1 Then Picture2.PSet (Picture2.Width * i / HScroll2.Value, (Picture2.Height - 700 * Log(An(i)))), RGB(0, 255, 255)
If Comp = 2 Then Picture2.PSet (Picture2.Width * i / HScroll2.Value, (Picture2.Height - 700 * Log(C(i)))), RGB(0, 255, 255)
Next i
If Comp = 1 Then Picture2.Line (Picture2.Width * Position / HScroll2.Value, (Picture2.Height - 700 * Log(An(Position))))-Step(0, 200), RGB(255, 255, 255)
If Comp = 2 Then Picture2.Line (Picture2.Width * Position / HScroll2.Value, Picture2.Height - 700 * Log(C(Position)))-Step(0, 200), RGB(255, 255, 255)
End Sub
Private Sub Timer1_Timer()
Out &H378, 2 'Run
Out &H37A, 9
Out &H37A, 1
Out &H378, 255
Out &H379, 255
i = 0
Check1:
If Inp(&H379) = 206 Then GoTo Check1
check2:
If Inp(&H379) <> 206 Then GoTo check2
Out &H37A, 1
i = i + 1
If i > DataTrainLength + 44 Then GoTo Check3
Out &H37C, d(i)
If Inp(&H379) = 206 Then GoTo check2
Out &H37A, 0
If StartAcc = True And NumberOfAcc > 1 Then A(i) = A(i) + Inp(&H37C) Else A(i) = Inp(&H37C)
Out &H37A, 1
GoTo check2
Check3:
N = (HScroll2.Value + 1) * HScroll3.Value * 2 - 1
m = 2 * HScroll3.Value * (Picture1.Width - 50) / N
BaseLine1 = Picture1.Height - 100
VScale1 = Picture1.Height / 255
Picture1.Cls
If Acc < 1 Then Acc = 1
An(0) = A(36)
Picture1.PSet (0, BaseLine1 - VScale1 * An(0) / Acc), RGB(0, 255, 255)
For i = 1 To N
An(i) = A(i + 36)
Next i
For i = 0 To HScroll2.Value
An(i) = An(i * 2 * HScroll3.Value)
Next i
For i = 2 To HScroll2.Value
If An(i) < (An(i - 1) + A(i + 1)) / 2 - 20 Then An(i) = (An(i - 1) + An(i + 1)) / 2
Next i
For i = 0 To HScroll2.Value - 1
Picture1.PSet ((i) * m, BaseLine1 - VScale1 * An(i) / Acc), RGB(0, 255, 255)
Next i
If StartAcc = True Then Picture3.Line (0, 0)-Step(Picture3.Width * Acc / (HScroll8.Value), Picture3.Height), RGB(255, 255, 0), BF
If StartAcc = True And NumberOfAcc > 1 Then Acc = Acc + 1
If StartAcc = True And Acc = NumberOfAcc + 1 Then Timer1.Interval = 0
Call DataTrain
End Sub
Sub DataTrain()
Text1.Text = HScroll1.Value
Text2.Text = HScroll2.Value
Text3.Text = HScroll3.Value * 100
DataTrainLength = 4 + 2 * (HScroll2.Value + 1) * HScroll3.Value
For i = 1 To 100000
d(i) = 0
Next i
For NP = 0 To HScroll2.Value - 1
i = 20 + HScroll3.Value * (1 + 2 * NP)
j = 20 + HScroll3.Value * (2 + 2 * NP)
d(i) = 1 ' + 0
d(j) = 4
Next NP
d(16) = 4
d(18) = 4
d(20) = 2 ' + 8
End Sub