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PointF[] points = new PointF[x.Length];                    

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for (int i = 0; i < x.Length; i++)
{
point[i][0] = x[i];
point[0][i] = y[i];
}                    

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System.Drawing.PointF p;
            p.X = 4;                    

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    PointF point1 = new PointF(50.0F, 50.0F);
    PointF point2 = new PointF(100.0F, 25.0F);
    PointF point3 = new PointF(200.0F, 5.0F);
    PointF point4 = new PointF(250.0F, 50.0F);
    PointF point5 = new PointF(300.0F, 100.0F);
    PointF point6 = new PointF(350.0F, 200.0F);
    PointF point7 = new PointF(250.0F, 250.0F);
    PointF[] curvePoints = {point1, point2, point3, point4, point5, point6, point7};                    

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 for (int i = 0; i < xr.Length; i++)
{

}                    

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pointd[i,i] = {xr[i],yr[i]};                    

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int[,] array = { { 1, 2 }, { 3, 4 }};                    

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PointF[,] pointd = new PointF[xr.Length , yr.Length];                    

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                for (int i = 0; i < xr.Length; i++)
                {
                    PointF ur = new PointF(xr[i], yr[i]);
                    pointd[i] = ur;
                }                    

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PointF[] pointd = new PointF[xr.Length];

                for (int i = 0; i < xr.Length; i++)
                {
                    PointF ur = new PointF(xr[i], yr[i]);
                    pointd[i] = ur;
                }