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shuxuejianmo_8

于 2009-07-24 发布文件大小:26KB

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说明：（拟合）用给定的多项式，y=x3-6x2+5x-3，产生一组数据(xi,yi，i=1,2,…,n),再在yi上添加随机干扰(可用rand产生(0,1)均匀分布随机数,或用rands产生N(0,1)分布随机数)，然后用xi和添加了随机干扰的yi作的3次多项式拟合，与原系数比较。如果作2或4次多项式拟合，结果如何？ ((Fitting) with a given polynomial, y = x3-6x2+5 x-3, generated a set of data (xi, yi, i = 1,2, ..., n), then add a random disturbance yi ( can be generated rand (0,1) uniformly distributed random number, or rands generated N (0,1) distribution of random numbers), and then added with xi and yi for random interference of the 3 times polynomial fitting, and the original coefficient. If 2 or 4 times for polynomial fitting, the result?)

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getborder
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2010-11-15 20:56:19下载

积分：1
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2005-11-24 19:52:10下载

积分：1
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2014-09-25 14:09:09下载

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houzizhaitao
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2009-12-24 15:33:40下载

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2011-04-17 15:53:17下载

积分：1
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2012-03-27 23:47:52下载

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2007-05-16 11:02:44下载

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2013-04-02 14:56:36下载

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2021-04-25 15:58:46下载

积分：1

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