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[求助] 如何Taylor展开

如何在matlab中将f(x+h)在h点展开
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wurongjun

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【答案】应助回帖

taylor(f,n,h) 表示把f在h处展开到n-1次!
例如:
>> syms x
>> taylor(log(x),6,1)
ans =
x-1-1/2*(x-1)^2+1/3*(x-1)^3-1/4*(x-1)^4+1/5*(x-1)^5
善恶到头终有报,人间正道是沧桑.
2楼2013-09-29 10:48:46
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cean

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引用回帖:
2楼: Originally posted by wurongjun at 2013-09-29 10:48:46
taylor(f,n,h) 表示把f在h处展开到n-1次!
例如:
>> syms x
>> taylor(log(x),6,1)
ans =
x-1-1/2*(x-1)^2+1/3*(x-1)^3-1/4*(x-1)^4+1/5*(x-1)^5

syms x是什么意思呀?
To do great work, you have to have a pure mind.
3楼2013-10-01 13:09:18
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wurongjun

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【答案】应助回帖

syms x
设定x为符号变量!
就这么简单!
为什么"本贴为求助贴,我们鼓励回帖解决问题哦。应助不允许简单的跟帖,请遵守规定"
善恶到头终有报,人间正道是沧桑.
4楼2013-10-01 17:11:41
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