作者PttFund (批踢踢基金)
看板trans_math
标题Re: [积分]请问Jordan Curve是什麽鬼?
时间Mon Jul 11 00:48:51 2005
※ 引述《benwenbb (温仔)》之铭言:
: 就是今年94中正的考题
: 他说要再JORDAN CURVE上作一个积分
: 但却不知道那是啥,麻烦大家了
简单的说就是好的曲线.
We call that a path in the complex plane is a complex-valued
function γ, continuous on a compact interval [a,b].
The image of [a,b] under γ (the graph of γ) is said to be
a curve described by γ and it is said to join the points γ(a)
and γ(b).
If γ(a) = γ(b) and if γ is one-to-one on the half-open
interval [a,b), the curve is called a simple closed curve,
or a Jordan curve.
就算不晓得 Jordan curve 是啥, 直接做线积分也是没问题的吧,
除非积分子太烂.
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※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 219.68.227.219
1F:推 amymayyam:是一种简单封闭曲线吗?140.127.179.227 07/11
2F:推 GBRS:可以这麽说...这个有牵涉到复变的范畴... 60.198.69.14 07/11
3F:→ GBRS:举凡土木,机械等工学院科系...都有机会修到低... 60.198.69.14 07/11
4F:→ GBRS:复变顾名思义为"复数域上的微积分"... 60.198.69.14 07/11
5F:→ GBRS:里面大部分内容与微积分有相似的地方... 60.198.69.14 07/11
6F:→ GBRS:少部分有不相同...所以初微有学好的话... 60.198.69.14 07/11
7F:→ GBRS:到多变数微积分,复变领域都还蛮容易上手的... 60.198.69.14 07/11
8F:→ GBRS:个人的一点小经验...仅供各位参考^^... 60.198.69.14 07/11
9F:推 benwenbb:哦,原来就是封闭曲线的意思阿 59.121.206.92 07/11
10F:推 PttFund:没有交叉喔 219.68.227.219 07/11
12F:→ GBRS:这个网站很好用...只要是关於数学的一些专有名词... 60.198.69.14 07/11
13F:推 benwenbb:谢谢,好详细唷 59.121.206.92 07/11
14F:→ GBRS:里面几乎都可以找的到...虽然没有很详细... 60.198.69.14 07/11
15F:→ GBRS:不过对於工学院来说...已经算很足够了... 60.198.69.14 07/11