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defensenua

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[求助] Pade近似的导数近似的紧致格式的推导???

各位大侠,我看任玉新的那本《计算流体力学基础》第41面时,关于那个基于Pade近似的导数近似的紧致格式的推导时(推导过程以算子形式进行的),有一段推导怎么都看不懂,很苦恼,哪位大侠能帮忙解释下他如何推过来的,推导如附件所示[ Last edited by defensenua on 2012-5-20 at 07:44 ]
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【答案】应助回帖

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感谢参与,应助指数 +1
defensenua: 金币+30, ★★★很有帮助, 对我很有提示,但是否能再详细些 2012-05-23 06:46:37
first inequality use, 1/(1-x)~1+x,
second inequality, seems he uses \mu\sigma~=O(h),
I don't have the book, so that is what I can say.
2楼2012-05-21 22:15:30
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