Построить график функции - VB (62045)

Формулировка задачи:

Private Sub Command1_Click()
Dim x As Single
x = InputBox("введите x")
If x < -1 Then
    y = 1 / Abs(x)
  Else
 
    If x < 0 Then
      y = 1
        Else
           y = Log((e) ^ x)
End If
End If
Print y
 
End Sub

Решение задачи: «Построить график функции»

textual
                            Листинг программы 
                        

                            Option Explicit
Dim x As Single
Dim y As Single
Dim i As Integer
Dim a As Integer
Dim b As Integer
Dim c  As Integer
Private Sub Command1_Click()
a = Text1.Text
b = Text2.Text
c = Text3.Text
Picture1.Scale (-3, 5)-(5, -5)
For x = -3 To 4 Step 0.005
y = a * x ^ 2 + b * x + c
Picture1.PSet (x, y), vbRed
Next x
Picture1.Line (-3, 0)-(5, 0), vbBlue
For i = -3 To 4
Picture1.PSet (i, 0), vbBlue
Picture1.Print i
Next i
Picture1.Line (0, 5)-(0, -5), vbBlue
For i = -4 To 5
Picture1.PSet (0, i), vbRed
Picture1.Print i
Next i
End Sub
                        