sakura310

Filename: DSC01158.JPG
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2008-01-18 00:25:24 | 阿感 | 22 M9 ^# {( w  S0 k' A% D
2008-01-18 00:24:20 | playbr2 | 23 K8 R3 r8 A4 O6 h5 `$ g3 V) x! f
2008-01-18 00:22:02 | 但丁 | 2
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# W7 d3 W. Y0 k+ E點解大家都down兩次? XD

playbr2

Originally posted by sakura310 at  12:27 AM:
8 Y3 d6 n) }2 i0 aFilename: DSC01158.JPG$ L' g* o: r+ Z) f3 k: L5 i
Datetime | Downloaded by | Counts2 p4 |# k' \/ t: A( l5 R; M
2008-01-18 00:25:24 | 阿感 | 2
7 q8 W, H* a' S( e& Q2008-01-18 00:24:20 | playbr2 | 2
/ @+ v% Q+ d& A2008-01-18 00:22:02 | 但丁 | 2) v" {8 G# p" F( L( W

# T8 ~0 W! ?+ J5 h  q5 G點解大家都down兩次? XD

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  |0 `" K+ V7 b! f) L0 V" r5 P7 H我第一次開睇左2秒就close 左
3 j8 w) ?/ p0 Y之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:
4 w8 _9 i  U5 {6 X5 E' `Filename: DSC01158.JPG
: [" M1 A. s9 o! E4 {8 _* CDatetime | Downloaded by | Counts
9 `* s0 q, r( ]* i2008-01-18 00:25:24 | 阿感 | 2
* Q6 h* B. u" H1 h2008-01-18 00:24:20 | playbr2 | 2
: x9 [, n' w% M2 O$ e% l4 f* I2008-01-18 00:22:02 | 但丁 | 2
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* m( F& I; t! ?3 R: w6 s% S- m  a點解大家都down兩次? XD

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快d捉我錯處6 q3 k& g" X- h1 x8 K: C
話吾定我都打錯 + - 符號, ^/ p) l/ K: v  i
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當" f3 G$ @; L" C5 @
不過,c=101n哥度(解除n係正整數的限制,只是整數)7 j# ~7 `0 Z+ ?7 c9 p
就一下子限制左c一定要係101的倍數(好像看懸疑片,突然劇情說出一些事前沒提及過的線索,不爽~): O+ H2 v& s  q9 w4 v
知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題( r! E; {3 k3 ?" ~( t
但原先是不知答案,所以唔知有無失根& `, }: l( p' ?/ L" J- |8 `
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有時見到題目都感到有點不爽
4 x* F" D8 L- m9 S3 F- Z9 H題目所求的答案是整數,正整數,有理數,實數等等應該說清楚" s$ d0 X0 |% G4 T2 ?
有些題目,整數解和正整數解分別好大的說,要找出整數解集有時可不是件易事= =

cutec

冇答案ga..... l3 k2 q. S* I4 ]- [* G6 ]

6 z5 n! n4 Q0 _4 Q0 j; M8 x2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:
8 T! u/ O& @$ }, M冇答案ga....
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+ |- z2 X( d  ]; A2條equation solve 唔到3個unknown ga....

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agree
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2 equations 2 unknows" M! e$ G$ H: z8 T0 C" v
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if 3 unknows there should be 3 equations
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make it simple
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a + b +c = 3
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a+b = 2
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then c is 1 * {, D: `8 h! |5 {3 W: n
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a = 2 - b
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so 0 = 0 . _4 o& b% }3 r/ a* L) X, }" F

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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:
5 d3 a0 G. k4 p; `' w# w. \冇答案ga....
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2條equation solve 唔到3個unknown ga....

4 v8 c2 k5 ^1 c3 |' U6 o, D

4 L2 c- W+ s( I* I& }此言差矣~
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" h  T( i$ c1 w; V2條equation solve 唔到3個unknown ga( A- |9 }5 q% L
還欠一個條件,就是3條equation都是linear independent(線性無關)的2 m" d2 }+ J* N$ C0 D* I
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簡單點說,多元一次方程就是線性方程的一個例子
. s, b; S2 N" {4 o: U  W4 u% I在這情況下,當然是想求n個未知數,至少要用n條線性無關的方程
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如果不是線性的話,有機會1條方程解3個未知數的(這不是每次都可以的啦~)
; Z) m. F4 R* Q  O( M例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解5 ~- ~/ _. h7 }) \6 h( }* L# H
有興趣就解解看$ {  }% i# W7 A4 Z. ?" g
不懂的話就問playplay,佢會知答案

playbr2

Originally posted by sakura310 at  10:22 AM:; a; C5 u& C, C, ]* I( n8 g1 A% E
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' Z* e4 a% ?8 V4 X6 s4 y0 [不懂的話就問playplay,佢會知答案

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playbr2

Originally posted by sakura310 at  06:47 AM:# f4 e5 u9 c  `, k8 c: |
捉錯處就唔敢當9 [" d0 e/ b1 E4 \2 j) `
不過,c=101n哥度(解...

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) @- {" D% }. t都係睇餸食飯姐 , 無理由因為題目冇同你假設就下下大包圍架6 J& o+ E/ n/ `1 h& h; ~( l/ A: X) A
反而適當地調節一下 , 咁會理性好多
. q  m( X" d, u就好似隻game 由12粒珠 加到13粒珠咁
* {, ]% |8 b- c7 A( o$ a% y) k  u# O當''堂''好玩哂
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+ G1 _( }! y! u2 T% K1 }p.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:
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% \% ]. z, D. [0 L& r" Bp.s. 求''堂''字正寫...

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已是正寫吧