Plot Graph

 I ve tried for a program for Frequency ,amplitude modulation & demodulation using MSchart control, can any one help me how to draw a graph without using that component ,thats using Pset(x,y) ?????????

I want Complete source program , can any one help me ,,,,,,?????????????
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so you want to create your own chart in visual basic, and without using MSchart control?   I suggest a picturebox, or a form to do this.  You can scale the form or picbox very easily, and use your x and y co-ordinates to draw accurate graphs.
here is an example of how this can be done.
To draw y=sin(x) curve in a picturebox called by default Picture1, put the following on the form :

Private Sub Form_Activate()
    Dim x As Single, y As Single
    Const Pi = 3.1416
    Const Xmin = 0, Xmax = 2 * Pi, Ymin = -1, Ymax = 1
    Picture1.Scale (Xmin, Ymax)-(Xmax, Ymin)
    Picture1.PSet (0, 0)
    For x = Xmin To Xmax Step 0.01
        y = Sin(x)
        Picture1.Line -(x, y)
    Next x
End Sub

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Visual Basic Classic

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