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关于最近学习的gauss型求积公式的问题
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wjl
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Nov 23, 2009, 9:23:54 AM
11/23/09
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在课本172页,gauss型求积公式中,如何保证n+1阶正交多项式一定有n+1个互异实根,且一定落在区间(a,b)上?请老师和同学帮忙解答一
下,谢谢
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XuQiang
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Nov 23, 2009, 9:25:18 PM
11/23/09
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具有n+1个互异实根(且在a,b内)的n+1次正交多项式是被构造出来的。可以参考P100定理5。
wjl
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Nov 28, 2009, 10:08:59 AM
11/28/09
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哦,这一部分我们没有学,顺便问一下,像这类问题,如果将来想考计算数学的研究生必须要掌握么?
XuQiang
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Nov 29, 2009, 9:12:17 AM
11/29/09
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仅仅为了考试的话,知道这个结论即可。如果以后做函数逼近方面的研究的话,需要读的书还很多。
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