sakura310

Filename: DSC01158.JPG
8 }) ?9 M9 k3 x: z# j1 l4 ?. _+ NDatetime | Downloaded by | Counts
' }( q2 f6 _  L* z2008-01-18 00:25:24 | 阿感 | 2
) y" \; t  y: [7 Y" Z0 I7 T2008-01-18 00:24:20 | playbr2 | 2
% X: h  y; U7 z( M9 Z+ g9 [: |2 Q2008-01-18 00:22:02 | 但丁 | 2
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. G  S8 }6 ~; m* Z! o4 a; k點解大家都down兩次? XD

playbr2

Originally posted by sakura310 at  12:27 AM:3 Y2 ^9 \4 S1 \9 Z  L
Filename: DSC01158.JPG1 ?+ ?( ~( L  p4 v
Datetime | Downloaded by | Counts
4 D/ `: Z9 X' r: \' L- O2008-01-18 00:25:24 | 阿感 | 2# B" C: y4 t9 [0 B/ u9 H. r7 D
2008-01-18 00:24:20 | playbr2 | 2* y  R( H1 R, w
2008-01-18 00:22:02 | 但丁 | 2
2 h. V! `  u; N. r" \: R
- l! T) H/ u" q3 W點解大家都down兩次? XD

# r% K- ~* ^$ ?" F& I/ q# \; q. {

) p  g' a* v+ g9 x我第一次開睇左2秒就close 左9 l( j) |7 h! C* B/ M; P
之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:
6 C7 s5 [/ {7 P# Q; U9 uFilename: DSC01158.JPG
7 \- q1 |/ B) C9 {Datetime | Downloaded by | Counts# P: I- Y* g; @' u- t
2008-01-18 00:25:24 | 阿感 | 2
. y& t9 F: y8 o2008-01-18 00:24:20 | playbr2 | 2& v+ h4 ]7 z* B
2008-01-18 00:22:02 | 但丁 | 2
7 n3 {9 |9 `# H  `% b: \- P! X1 K! N5 e
點解大家都down兩次? XD

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快d捉我錯處
- n0 k5 E5 ]" K- X話吾定我都打錯 + - 符號6 r5 c7 b8 F. C  e! n5 T
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當8 h  Q3 F6 F' o
不過,c=101n哥度(解除n係正整數的限制,只是整數)  x( k8 h3 h, b  D' Z
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~)
, H- {  {+ f% D/ |知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題  H2 a3 y. G0 ?* E& s) h( E
但原先是不知答案,所以唔知有無失根
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; D0 L& [1 D: V有時見到題目都感到有點不爽
. A8 S4 k- h2 N# [: P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
+ E( f% i+ X& J1 l5 P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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2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:
8 i( O) x6 H1 h2 T3 m冇答案ga...." f6 X8 G/ P6 f. V" a7 \# X% h

4 h7 N$ g+ q, k0 P: @0 n2 D& Q: t2條equation solve 唔到3個unknown ga....

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8 W8 M; z* _; _9 H* {agree 0 Q. F( d  |; F4 I

' l  E8 ^7 h( Q% [6 H  z. D2 equations 2 unknows
5 \7 l6 H3 w& P1 k
! Y8 H4 p& G: @* k( W5 Eif 3 unknows there should be 3 equations
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0 S& i0 X; ?. v/ _make it simple 9 _1 O6 s" N# J- G0 F% l( T

+ Y5 y# E3 Q! w( b# l- F: N1 |say 8 V" N; f8 D3 T" n" |

+ B4 t7 e. M4 I" ], p- s, @- Ka + b +c = 36 V& P+ g& f' g% |" b8 @9 g

5 g' H* |+ `8 V+ K$ A7 D4 `8 d/ \a+b = 2: N- R# G! F& v5 G7 s- E  b
0 }/ v7 K+ J+ e4 X
then c is 1 ( S) ^0 E# v& K( s; |
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a = 2 - b " q. `$ M8 }" e5 f
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so 0 = 0 / ^$ z( t5 f  ]. |, N9 [1 V) L

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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:; l) r& {* D/ a9 ~/ }, J  Y* @
冇答案ga....- U# f: E& M- G
& G/ P7 C$ x5 t3 @3 m
2條equation solve 唔到3個unknown ga....

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  j! X5 y+ W7 p/ L3 w此言差矣~
) A% F7 }$ A3 K# ]" w/ I) q, F
2條equation solve 唔到3個unknown ga
0 T' n; \) d+ c, E- `  x% U7 I" [還欠一個條件,就是3條equation都是linear independent(線性無關)的
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/ j; ]2 n/ l7 ?' \簡單點說,多元一次方程就是線性方程的一個例子
* l0 W- }4 B3 D) X% d" x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/ H5 ]' [& L$ _1 `/ ]1 g2 S$ `$ A

& g* b# ?: H* M/ y; b. 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~)
$ J6 |5 \  [' M) W例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解3 v6 J& }; h- v, P8 n6 Y' u* r
有興趣就解解看
( s+ I. L8 r; C+ n, `* Z- H不懂的話就問playplay,佢會知答案

playbr2

Originally posted by sakura310 at  10:22 AM:& u) [4 b! G4 X. ]
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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:
: ?6 }5 J  n( s! G: J捉錯處就唔敢當
$ l" z9 {2 w/ F" Q  u! Y不過,c=101n哥度(解...

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6 m3 z, A' s9 B; r# j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
% ^1 C5 k% h* O9 m反而適當地調節一下 , 咁會理性好多! L& X* V7 y" S6 ?8 r
就好似隻game 由12粒珠 加到13粒珠咁' `& |% C: A" o
當''堂''好玩哂
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: j7 e1 H9 b+ C* h6 Ep.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:( z2 L& d8 F+ P; J4 V& ]

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! z5 ]! Y  m9 D8 \( Z: Y! Dp.s. 求''堂''字正寫...

7 G1 S! V) }. f. o0 G' e5 ~已是正寫吧