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Dim a!,b!
Private Sub cmdLinR_Click()
Dim x1!,y1!,x2!,y2!,xy!,Lxx!,Lyy!,Lxy!,r!,n%
x1=0:y1=0:x2=0:y2=0:xy=0
n=txtNum.Text
For i=1 To n
  x1=x1+txtX(i).Text:y1=y1+txtY(i).Text
  x2=x2+txtX(i).Text*txtX(i).Text:y2=y2+txtY(i).Text*txtY(i).Text
  xy=xy+txtX(i).Text*txtY(i).Text
Next
  Lxx=x2-x1*x1/n
  Lyy=y2-y1*y1/n
  Lxy=xy-x1*y1/n
  b=Lxy/Lxx
  a=(y1-b*x1)/n
  r=Lxy/Sqr(Lxx*Lyy)
  lblLinREq.Caption="y="+Format$(a,"#######.#####"+"+"+Format$(b,"#######.#####"+"x"
  lblRelation.Caption="Ïà¹ØÏµÊý"+Format$(r,"#######.#####"
End Sub
Private Sub cmdCalc-Click()
  txtyy.Text=a+b*txtxx.Text
  End Sub
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