c6_2a.dat

给定带有高斯噪声的三组样本,对其进行最小二乘拟合,并且绘图,求出误差协方差

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  4.4999555e+000 -3.1074684e-001
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  3.6711457e+000 -6.3147069e-001
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  3.6204363e+000 -1.5797271e+000
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  6.0039980e+000  3.1695644e+000
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  4.0131195e+000 -6.8046109e-001
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  5.8106656e+000  2.6268452e+000
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