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正弦函数的绘制的一种方法

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

 

 

        Dim G As Graphics

 

        G = PictureBox1.CreateGraphics()

        移动坐标原点(那么原点下就变成了(20,pictruebox1.height2))

        G.TranslateTransform(20, PictureBox1.Height 2)

        绘制X轴与Y轴

        Y轴

        G.DrawLine(Pens.Black, 20, -PictureBox1.Height 2, 20, PictureBox1.Height 2)

        X轴

        G.DrawLine(Pens.Black, -20, 0, PictureBox1.Width, 0)

        正弦函数

        Dim X, Y As Double

        For X = 0 To 400 Step 0.002

            Y = 60 * Math.Sin(2 * 3.1415926 * X / 200)

补充:Web开发 , ASP.Net ,
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