作者PttFund (批踢踢基金)
看板trans_math
標題Re: [積分]請問Jordan Curve是什麼鬼?
時間Mon Jul 11 00:48:51 2005
※ 引述《benwenbb (溫仔)》之銘言:
: 就是今年94中正的考題
: 他說要再JORDAN CURVE上作一個積分
: 但卻不知道那是啥,麻煩大家了
簡單的說就是好的曲線.
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.
就算不曉得 Jordan curve 是啥, 直接做線積分也是沒問題的吧,
除非積分子太爛.
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◆ From: 219.68.227.219
1F:推 amymayyam:是一種簡單封閉曲線嗎?140.127.179.227 07/11
2F:推 GBRS:可以這麼說...這個有牽涉到複變的範疇... 60.198.69.14 07/11
3F:→ GBRS:舉凡土木,機械等工學院科系...都有機會修到低... 60.198.69.14 07/11
4F:→ GBRS:複變顧名思義為"複數域上的微積分"... 60.198.69.14 07/11
5F:→ GBRS:裡面大部分內容與微積分有相似的地方... 60.198.69.14 07/11
6F:→ GBRS:少部分有不相同...所以初微有學好的話... 60.198.69.14 07/11
7F:→ GBRS:到多變數微積分,複變領域都還蠻容易上手的... 60.198.69.14 07/11
8F:→ GBRS:個人的一點小經驗...僅供各位參考^^... 60.198.69.14 07/11
9F:推 benwenbb:哦,原來就是封閉曲線的意思阿 59.121.206.92 07/11
10F:推 PttFund:沒有交叉喔 219.68.227.219 07/11
12F:→ GBRS:這個網站很好用...只要是關於數學的一些專有名詞... 60.198.69.14 07/11
13F:推 benwenbb:謝謝,好詳細唷 59.121.206.92 07/11
14F:→ GBRS:裡面幾乎都可以找的到...雖然沒有很詳細... 60.198.69.14 07/11
15F:→ GBRS:不過對於工學院來說...已經算很足夠了... 60.198.69.14 07/11