sakura310

Filename: DSC01158.JPG
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4 b% w( x1 T. o& S: N; ]7 M2008-01-18 00:25:24 | 阿感 | 2
1 y% c. x2 ]6 S- d% Y4 [6 N* B$ n6 {2008-01-18 00:24:20 | playbr2 | 20 s) h, q) b8 E& r* G2 q
2008-01-18 00:22:02 | 但丁 | 2
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6 k5 P+ Z6 \' i: N' r. p9 A$ A點解大家都down兩次? XD

playbr2

Originally posted by sakura310 at  12:27 AM:
- l" z5 q9 j6 _! ]/ z: zFilename: DSC01158.JPG+ X* v- ^& U7 M/ O; z" E
Datetime | Downloaded by | Counts6 w8 V+ \6 f; _3 |
2008-01-18 00:25:24 | 阿感 | 21 F8 J) _0 @6 e) j4 s; |. H' X6 G
2008-01-18 00:24:20 | playbr2 | 21 |) e8 H- i' g5 I. D# J3 B, g
2008-01-18 00:22:02 | 但丁 | 28 [9 c8 `( x/ \; ?
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點解大家都down兩次? XD

3 |8 l& q: `6 r/ o% B- D9 O

, K# [" R, q% o' g7 D我第一次開睇左2秒就close 左7 t% p: @# |6 `6 I! g, B+ h
之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:
& w$ S) [$ D. P: LFilename: DSC01158.JPG/ k( V* o: I3 A+ R- W. @
Datetime | Downloaded by | Counts& Q1 R8 i6 P/ r( K+ C/ [
2008-01-18 00:25:24 | 阿感 | 2
& X/ `0 R$ c5 N9 N2008-01-18 00:24:20 | playbr2 | 2
: Q7 }6 N4 n& z. Z# J0 {2008-01-18 00:22:02 | 但丁 | 2
, S1 M3 @: J& t3 e- h: r3 |2 n8 w* x# Z  C
點解大家都down兩次? XD

1 N. t; f* B# C6 ?) q# Q9 X$ k9 D
; ]4 w0 T: F5 M" P9 l0 g5 L, `快d捉我錯處0 k# B5 H1 u3 |# j0 c! S
話吾定我都打錯 + - 符號2 w, |8 u" s& v' k; w5 `0 o
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當
: |! W5 Y; H6 \  Q8 w  l不過,c=101n哥度(解除n係正整數的限制,只是整數)6 C" U% K4 l0 @9 I: W
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~)
/ }5 b. @) [: ?0 |  i知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題
1 D/ B0 N+ Q2 {; a+ J! ^1 w% ?4 o但原先是不知答案,所以唔知有無失根
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1 [6 [, n( Y* D% v0 Z1 O+ q# t* N有時見到題目都感到有點不爽" k5 v7 p4 a: n% |6 i3 k6 D
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( q: F% d/ u, |4 X, p0 j
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....
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, P/ n1 {1 p+ y& J6 {2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:
- m' V* ]5 Y- @% d- `0 g% I8 S冇答案ga....
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7 Y5 c+ T# }2 e+ R2條equation solve 唔到3個unknown ga....

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agree
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2 equations 2 unknows
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3 t9 A; ^  _3 j! H# I. Yif 3 unknows there should be 3 equations - w" S" s0 [; L/ g, R

' m3 ^# g" A) j9 Z6 l- Amake it simple
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# k9 E, x- s$ U$ r/ e  d: U" }8 ?$ Osay
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a + b +c = 3- o: n6 m1 }& E" M; u

4 o/ |/ G3 @$ Ra+b = 26 {/ k5 n9 ?5 E- o

+ R/ E( \$ \- |1 T6 l# }$ dthen c is 1
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  F% g3 P; T8 N9 e  y* ]5 Na = 2 - b
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  c3 N6 R# V' O3 r) X2 L+ [! @so 0 = 0 . n% f* X9 p" w5 v. U

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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:
6 Z: }& g. S3 d0 P0 W冇答案ga....% a" h3 P% \8 e( l9 C* f
3 v9 ~7 t2 t) ?9 ]/ n
2條equation solve 唔到3個unknown ga....

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, Q, z3 o- Z, ~, x. H  j5 U此言差矣~
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) t9 n0 R+ I  R, C4 p2條equation solve 唔到3個unknown ga
1 E0 T; n& |: G5 L還欠一個條件,就是3條equation都是linear independent(線性無關)的
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! W, ~0 B: A7 v  w4 M  B7 S0 c% _簡單點說,多元一次方程就是線性方程的一個例子
  {' o# Q- ^$ l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~)
2 K( T' Z8 ~6 E5 p9 y# u例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解
: k. ?- `, W) [( ]0 v+ B  z) N! B6 T有興趣就解解看
1 V5 O! r% ~- N5 A不懂的話就問playplay,佢會知答案

playbr2

Originally posted by sakura310 at  10:22 AM:
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3 g/ T% S0 D) B& T9 J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:7 h6 m9 B+ a' j
捉錯處就唔敢當
! p4 ~3 O: o4 `6 V7 O1 W3 \! C: R不過,c=101n哥度(解...

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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/ Q; w. J& {( h! O* f% m
反而適當地調節一下 , 咁會理性好多
* F3 e9 Y$ X6 W- b  }5 Z就好似隻game 由12粒珠 加到13粒珠咁: x9 H- B- K* e/ W  ]1 H. b
當''堂''好玩哂  X' m' C4 [, M6 `  [% e% Y. b

5 F/ L( a" C: b, |* F# _/ V9 ip.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:
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# O5 t  H% _9 s  a7 ?( x! gp.s. 求''堂''字正寫...

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已是正寫吧