sakura310

Filename: DSC01158.JPG
$ L: j/ s, Y/ U& fDatetime | Downloaded by | Counts* [2 r' _6 J9 |2 o2 ^# _4 t
2008-01-18 00:25:24 | 阿感 | 2
; |4 R: D& E. h2 \2008-01-18 00:24:20 | playbr2 | 22 r% W: M7 M$ A# C" C
2008-01-18 00:22:02 | 但丁 | 2
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點解大家都down兩次? XD

playbr2

Originally posted by sakura310 at  12:27 AM:
! R2 D3 v. }1 x. ^2 N5 _Filename: DSC01158.JPG! H1 ~0 G, ~$ a# b
Datetime | Downloaded by | Counts1 Y' j, x  [  T4 ^8 h
2008-01-18 00:25:24 | 阿感 | 2
0 Q' e1 F; V6 _5 R9 W/ d  M* _2008-01-18 00:24:20 | playbr2 | 2) f; ~* ^! b7 y( @
2008-01-18 00:22:02 | 但丁 | 2. g: l. ]. j' m+ N

# ^: t) @) |+ x點解大家都down兩次? XD

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! G5 n1 o5 S) ]$ V+ T# |我第一次開睇左2秒就close 左8 f. l& l5 K7 y( s4 X
之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:
6 e3 m* t5 z$ ZFilename: DSC01158.JPG% [5 S! G# I; y$ e- j$ Q+ H
Datetime | Downloaded by | Counts
/ O0 \6 P) Z: G6 G* M& m2008-01-18 00:25:24 | 阿感 | 2
5 u2 }" {1 ~( Z/ Z, K1 J2008-01-18 00:24:20 | playbr2 | 28 h6 |- E& u; g; c8 }: e
2008-01-18 00:22:02 | 但丁 | 2/ C9 |1 j9 v: m5 |1 C. r  x, L& e

! F4 I* C2 M. ?6 ?- |- Y點解大家都down兩次? XD

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: D' g9 n, g$ {快d捉我錯處
/ h, N( C6 X$ N7 L話吾定我都打錯 + - 符號) u" a/ a+ a+ Y
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當9 H1 _/ t% U# ~4 \: U9 ?
不過,c=101n哥度(解除n係正整數的限制,只是整數)2 W* a' N: Z+ y8 M0 U
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~)+ c4 [7 b1 x- s
知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題1 g! h2 ^8 ]3 l# n
但原先是不知答案,所以唔知有無失根
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5 K+ Y! k0 C' z" w有時見到題目都感到有點不爽: O( o) e# D2 n0 m0 F
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
4 X0 p( G; g9 y# }' G6 _  S8 D6 ?# M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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  F1 G" {9 P  A4 Z* Z2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:
2 u+ p) a" \8 I7 v  A$ {冇答案ga..... c" N; D0 T& t6 x2 Z8 d
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2條equation solve 唔到3個unknown ga....

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, v3 {2 O+ s# D6 S2 bagree , T- E* X, e( X. y8 O) f  |

  i' `6 }; K9 C8 C" i' L2 equations 2 unknows3 Z: i; C8 I; d8 e8 I6 F
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if 3 unknows there should be 3 equations
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3 A) s' c& p& S( B  x( hmake it simple
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say
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' [9 w$ l$ b% V2 l  ta + b +c = 3, d) ~; O7 b4 i8 U% S  g1 ~* ]
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a+b = 2; V! o9 R; [6 \
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then c is 1
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a = 2 - b $ ~$ b$ a2 X; T1 N# r2 Q" M
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so 0 = 0
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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:
! O) ?2 v5 x  K% x( Z冇答案ga....
+ V3 i& k" ~( ^( E" Q8 c
' M0 V* T7 S2 L/ t2條equation solve 唔到3個unknown ga....

+ p- L2 h+ x& q! _3 y

1 X- u7 q5 k- ^+ j2 ?+ b! h7 t此言差矣~
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$ Q' r2 v  L: Y% b4 }1 h2條equation solve 唔到3個unknown ga3 ?2 L+ t. J' N  x
還欠一個條件,就是3條equation都是linear independent(線性無關)的$ b, v* q1 q6 Z  G8 T
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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
& D, Y( `$ U4 {  b$ `: t1 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- C$ y! q% @* X9 g4 E

0 ~) V3 M# `- S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~)
; m( ^% ^, r% K例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解: F* z/ f% J4 M5 D
有興趣就解解看
: y) z: k0 f* M. k! m8 T! B# X$ ~不懂的話就問playplay,佢會知答案

playbr2

Originally posted by sakura310 at  10:22 AM:: A' @4 T5 `+ g

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; r$ u" c+ O$ @; d, i8 B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:( o6 n- _# e& ^& F
捉錯處就唔敢當6 o" k/ j( @% w7 C% W
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' V1 N6 f4 m* w" h& b% W. M
反而適當地調節一下 , 咁會理性好多  p9 {, D% _- P3 @8 d
就好似隻game 由12粒珠 加到13粒珠咁
! g) u0 f6 [$ Q7 G當''堂''好玩哂
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) M% N8 o6 q# Q' S8 Y- S' xp.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:
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( u; k+ Q+ |) n( |/ [( Up.s. 求''堂''字正寫...

" H1 x4 Q& U, D$ A% u已是正寫吧