Calculadora 3 (por Daniel)

Private Sub ocho_Click()
pantalla.Caption = pantalla.Caption + "8"
End Sub

Private Sub por_Click()
aux2.Caption = "*"
Auxiliar.Caption = pantalla.Caption
pantalla.Caption = ""
coma.Enabled = True
End Sub

Private Sub porc_Click()
aux2.Caption = "%"
Auxiliar.Caption = pantalla.Caption
pantalla.Caption = ""
coma.Enabled = True
End Sub

Private Sub raiz_Click()
If pantalla.Caption <= 0 Then
pantalla.Caption = "Error"
Else
pantalla.Caption = Sqr(pantalla.Caption)
End If
End Sub

Private Sub seis_Click()
pantalla.Caption = pantalla.Caption + "6"
End Sub

Private Sub siete_Click()
pantalla.Caption = pantalla.Caption + "7"
End Sub

Private Sub tres_Click()
pantalla.Caption = pantalla.Caption + "3"
End Sub

Private Sub uno_Click()
pantalla.Caption = pantalla.Caption + "1"
End Sub