好悶 有無人問數

330 回覆
12 Like 1 Dislike
2017-03-23 23:00:06
有冇人講下topology
咩係topology既世界圓形同正方形一樣,講緊乜

簡單黎講你係唔整爛個圓形泥膠的情況之下, 可以慢慢拉到變左個正方形 (反之亦然)

正方形同骰仔都一樣？㩒扁或整脹返就得

唔同, 佢地係唔同dimension的野

又話唔整爛泥膠就得，好亂

咁你可唔可以將粒骰仔壓到無厚度?

咁你都唔會整到個完美嘅圓形啦，講呢啲冇意思

咁呢D係比喻幫你visualize姐


topology唔係話可以將2D既野match落3D到咩

embedding 同 兩個space homoemorphic 唔同架喎, 好似係
2017-03-23 23:16:56
有冇人講下topology
咩係topology既世界圓形同正方形一樣,講緊乜

簡單黎講你係唔整爛個圓形泥膠的情況之下, 可以慢慢拉到變左個正方形 (反之亦然)

正方形同骰仔都一樣？㩒扁或整脹返就得

唔同, 佢地係唔同dimension的野

又話唔整爛泥膠就得，好亂

咁你可唔可以將粒骰仔壓到無厚度?

咁你都唔會整到個完美嘅圓形啦，講呢啲冇意思

咁呢D係比喻幫你visualize姐


topology唔係話可以將2D既野match落3D到咩

embedding 同 兩個space homoemorphic 唔同架喎, 好似係


可唔可以講多D 因為對topology有性趣但睇到開頭幾版就已經迷失左


拓樸學其實係講連續性最general的setting下的性質，冇analysis你唔知果d concepts同埋theorems係度generalize緊乜
2017-03-23 23:21:19
有冇人講下topology
咩係topology既世界圓形同正方形一樣,講緊乜

簡單黎講你係唔整爛個圓形泥膠的情況之下, 可以慢慢拉到變左個正方形 (反之亦然)

正方形同骰仔都一樣？㩒扁或整脹返就得

唔同, 佢地係唔同dimension的野

又話唔整爛泥膠就得，好亂

咁你可唔可以將粒骰仔壓到無厚度?

咁你都唔會整到個完美嘅圓形啦，講呢啲冇意思

咁呢D係比喻幫你visualize姐


topology唔係話可以將2D既野match落3D到咩

embedding 同 兩個space homoemorphic 唔同架喎, 好似係


可唔可以講多D 因為對topology有性趣但睇到開頭幾版就已經迷失左


拓樸學其實係講連續性最general的setting下的性質，冇analysis你唔知果d concepts同埋theorems係度generalize緊乜

topology 好撚難
2017-03-23 23:23:44
巴打幫下我呢一條數

https://lihkg.com/thread/168517/page/1

2017-03-23 23:25:55
有冇人講下topology
咩係topology既世界圓形同正方形一樣,講緊乜

簡單黎講你係唔整爛個圓形泥膠的情況之下, 可以慢慢拉到變左個正方形 (反之亦然)

正方形同骰仔都一樣？㩒扁或整脹返就得

唔同, 佢地係唔同dimension的野

又話唔整爛泥膠就得，好亂

咁你可唔可以將粒骰仔壓到無厚度?

咁你都唔會整到個完美嘅圓形啦，講呢啲冇意思

咁呢D係比喻幫你visualize姐


topology唔係話可以將2D既野match落3D到咩

embedding 同 兩個space homoemorphic 唔同架喎, 好似係


可唔可以講多D 因為對topology有性趣但睇到開頭幾版就已經迷失左


拓樸學其實係講連續性最general的setting下的性質，冇analysis你唔知果d concepts同埋theorems係度generalize緊乜


姐係我應該analysis再topology讀上去?因為唔係數學MAJOR

最好學左basic analysis (continuity就夠), 再學D metric space拎下feel, 跟住讀topology會舒服好多
2017-03-24 00:01:21
有冇人講下topology
咩係topology既世界圓形同正方形一樣,講緊乜

簡單黎講你係唔整爛個圓形泥膠的情況之下, 可以慢慢拉到變左個正方形 (反之亦然)

正方形同骰仔都一樣？㩒扁或整脹返就得

唔同, 佢地係唔同dimension的野

又話唔整爛泥膠就得，好亂

咁你可唔可以將粒骰仔壓到無厚度?

咁你都唔會整到個完美嘅圓形啦，講呢啲冇意思

咁呢D係比喻幫你visualize姐


topology唔係話可以將2D既野match落3D到咩

embedding 同 兩個space homoemorphic 唔同架喎, 好似係


可唔可以講多D 因為對topology有性趣但睇到開頭幾版就已經迷失左


拓樸學其實係講連續性最general的setting下的性質，冇analysis你唔知果d concepts同埋theorems係度generalize緊乜


姐係我應該analysis再topology讀上去?因為唔係數學MAJOR

最好學左basic analysis (continuity就夠), 再學D metric space拎下feel, 跟住讀topology會舒服好多

仲有game theory係咪唔洗數底

a bit matrix algebra and some multivariable calculus should be ok
2017-03-24 15:50:00
有冇人講下topology
咩係topology既世界圓形同正方形一樣,講緊乜

簡單黎講你係唔整爛個圓形泥膠的情況之下, 可以慢慢拉到變左個正方形 (反之亦然)

咁樣既話咩都一樣嫁喎

正式definition係有一個bijection f, 而且f, f^-1 都係continuous

homeomorphic同homotopic唔同㗎喎ching
2017-03-25 00:34:53
有冇人講下topology
咩係topology既世界圓形同正方形一樣,講緊乜

簡單黎講你係唔整爛個圓形泥膠的情況之下, 可以慢慢拉到變左個正方形 (反之亦然)

咁樣既話咩都一樣嫁喎

正式definition係有一個bijection f, 而且f, f^-1 都係continuous

homeomorphic同homotopic唔同㗎喎ching

homotopic 係講兩條curve可以continuously deformed into each other within the space wor
利申: 唔識Algebraic Topology
2017-03-25 00:44:38
有冇人講下topology
咩係topology既世界圓形同正方形一樣,講緊乜

簡單黎講你係唔整爛個圓形泥膠的情況之下, 可以慢慢拉到變左個正方形 (反之亦然)

咁樣既話咩都一樣嫁喎

正式definition係有一個bijection f, 而且f, f^-1 都係continuous

homeomorphic同homotopic唔同㗎喎ching

homotopic 係講兩條curve可以continuously deformed into each other within the space wor
利申: 唔識Algebraic Topology

isotopy
homeomorphic
homotopy比以上更weak
2017-03-25 20:42:05
我俾條數你計

宜家我玩"十五二十"平均10賭7輸盤
我玩"骰盅"平均10賭4輸盤
我每輸一盤就飲三份一罐啤酒
而我飲三罐啤酒就會嘔4份之1出來
宜家我玩60盤"十五二十"
110盤"骰盅"

請問我飲咗幾多啤酒?
2017-03-25 21:46:51
潛左？
2017-03-25 21:50:49
有冇咩topology/analysis既書岩新手睇

elementary analysis bartle
mathematical analysis apostol
real analysis royden
2017-03-25 21:54:32
有冇咩topology/analysis既書岩新手睇

elementary analysis bartle
mathematical analysis apostol
real analysis royden

Apostol
2017-03-25 22:23:50
有冇咩topology/analysis既書岩新手睇

elementary analysis bartle
mathematical analysis apostol
real analysis royden

Apostol

royden比新手睇咩
2017-03-26 14:19:54
有冇咩topology/analysis既書岩新手睇

elementary analysis bartle
mathematical analysis apostol
real analysis royden

Apostol

royden比新手睇咩

我當年undergrad讀real analysis prof叫我哋睇royden
佢嘅notes;完全照抄本書
2017-03-26 14:21:04
有冇咩topology/analysis既書岩新手睇

elementary analysis bartle
mathematical analysis apostol
real analysis royden

Apostol

royden比新手睇咩

topology without tears
2017-03-26 15:57:11
有冇咩topology/analysis既書岩新手睇

elementary analysis bartle
mathematical analysis apostol
real analysis royden

Apostol

royden比新手睇咩

我當年undergrad讀real analysis prof叫我哋睇royden
佢嘅notes;完全照抄本書

first course?
2017-03-26 15:58:09
有冇咩topology/analysis既書岩新手睇

elementary analysis bartle
mathematical analysis apostol
real analysis royden

Apostol

royden比新手睇咩

topology without tears

我覺得Crossley開心D
如果唔駛對住D痴線space好似John M Lee都ok
2017-03-26 22:38:47
有冇咩topology/analysis既書岩新手睇

elementary analysis bartle
mathematical analysis apostol
real analysis royden

Apostol

royden比新手睇咩

我當年undergrad讀real analysis prof叫我哋睇royden
佢嘅notes;完全照抄本書

first course?

唔係
應該算係進階版
2017-03-26 22:51:16
樓主資歷去到邊
好似好勁咁
吹水台自選台熱　門最　新手機台時事台政事台World體育台娛樂台動漫台Apps台遊戲台影視台講故台健康台感情台家庭台潮流台美容台上班台財經台房屋台飲食台旅遊台學術台校園台汽車台音樂台創意台硬件台電器台攝影台玩具台寵物台軟件台活動台電訊台直播台站務台黑　洞