sakura310

Filename: DSC01158.JPG; G; x3 r( z6 S5 V" {# Q" I
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2 m4 v: n6 B# ]0 P/ k2008-01-18 00:25:24 | 阿感 | 2
( ~: F2 u% S' c& ]; n2008-01-18 00:24:20 | playbr2 | 29 w# B9 |4 @6 @9 ?1 ]% q
2008-01-18 00:22:02 | 但丁 | 2! V' D8 K' a/ d
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點解大家都down兩次? XD

playbr2

Originally posted by sakura310 at  12:27 AM:
& F6 Y5 N) B. J3 p: }Filename: DSC01158.JPG
! o) _  H7 Z" W7 R+ H" J7 M" cDatetime | Downloaded by | Counts, Z: G) q+ u4 W8 Z5 ^7 {; L+ W
2008-01-18 00:25:24 | 阿感 | 2/ y& o6 m: Q' F" |
2008-01-18 00:24:20 | playbr2 | 2
& G9 |6 ~9 |% E9 F+ I% W2008-01-18 00:22:02 | 但丁 | 2  ^7 z" x, ^0 X# m* Y
: f. b+ S" g; f7 G: h
點解大家都down兩次? XD

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' a4 m+ Y# u! f8 Q2 D- r. Z6 o我第一次開睇左2秒就close 左
- c9 H& D: f6 }/ u8 v+ M8 y6 Z, c之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:
: I+ O( v! A' Y8 j) @/ ]Filename: DSC01158.JPG( `7 k& R' P1 }& ^% l3 B1 K
Datetime | Downloaded by | Counts6 Q# f  [( g) w* p
2008-01-18 00:25:24 | 阿感 | 2
6 a) @3 @3 v$ {% s! M; e+ }5 {2008-01-18 00:24:20 | playbr2 | 23 x% q0 M' M3 K- }+ c; `9 W  d
2008-01-18 00:22:02 | 但丁 | 2
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  X9 S, W: z3 o- ~/ v7 b# c$ g6 c點解大家都down兩次? XD

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快d捉我錯處
( u" t( I  y3 P& z$ W, Q; ^/ k2 m話吾定我都打錯 + - 符號, M0 p+ J" K2 g
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當
; N* U+ c8 M* F5 ~4 z不過,c=101n哥度(解除n係正整數的限制,只是整數)
5 h" N( {/ S5 j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~)
: x- H( H! p5 s: f" P* \知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題9 X3 S$ H1 ?. P! m7 I4 j6 y
但原先是不知答案,所以唔知有無失根5 S) b4 S) A) c6 I3 n  U7 S+ [

, g! \1 o' Y5 L* b有時見到題目都感到有點不爽& l. w7 A# U6 ]8 ?7 u
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7 f9 P/ K6 f6 j  T
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....
+ Y1 K6 q1 C/ y* \2 _% G* s0 M$ {
( T' \. J0 Z% J  Z# \2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:
$ r5 W9 l4 _4 I+ X, k4 r4 G冇答案ga....8 d+ Y+ S- |/ ^. l9 t/ P
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2條equation solve 唔到3個unknown ga....

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agree 9 B1 m+ f2 }+ ~7 T! b: q
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2 equations 2 unknows, [" I: l! m" w! L+ n8 l5 f

4 `0 f* h* ?) O0 Vif 3 unknows there should be 3 equations 7 l. m0 r+ o; J3 Y  ~& `& k  N/ K- R

8 ]7 m5 f4 z: |9 t( U* fmake it simple 0 |  |* K* p8 N/ C7 C+ e
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say
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' L) U- V6 I% |3 Ka + b +c = 3
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7 F0 \" Q. X* Y+ i0 S" ha+b = 2* h3 L# B$ P: l. e; W

1 f0 g4 h5 P1 f9 x. B6 W4 a4 Uthen c is 1
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a = 2 - b " ^" e  z( W8 M& c" `4 ^- f
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so 0 = 0
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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:
& p6 d3 a9 B& y  ?+ Z冇答案ga....& I. P% e9 v& f# s' V- p: C/ q

8 R0 \* r9 \" Y5 z& R& {2條equation solve 唔到3個unknown ga....

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3 a6 ]1 Y" c0 [2 W) @6 L' z5 `- t此言差矣~
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# X/ X/ v5 e. {2 z2條equation solve 唔到3個unknown ga
8 w* L/ G4 N# s, x- n還欠一個條件,就是3條equation都是linear independent(線性無關)的2 H( Z* Z: A, Q& \- C( `# @
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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
0 B5 O" E3 G2 ~/ 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~)9 ?2 X7 ~. B) {+ S  }; T
例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解" A, \1 G$ ], o( z" y3 ?
有興趣就解解看
. r/ [( s4 c: B8 X! m* r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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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:  o; r: t- u* p1 I. U
捉錯處就唔敢當
/ C) r7 X" g# b6 b! Q" t  X不過,c=101n哥度(解...

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! S- P7 S0 e& `( V; l! _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" @2 g, ]9 }$ O7 Q
反而適當地調節一下 , 咁會理性好多* J6 l# I& u6 X/ ?
就好似隻game 由12粒珠 加到13粒珠咁
- D: @9 C6 y: t3 u! Y當''堂''好玩哂
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& ^" v( ?7 }5 z7 Q" y* ?- S* tp.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:# i9 k/ {% x0 \2 o* w$ m' O
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p.s. 求''堂''字正寫...

& @( o+ v( e8 s/ t已是正寫吧