sakura310

Filename: DSC01158.JPG
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& {7 G5 t6 A" U& |. u- e2008-01-18 00:25:24 | 阿感 | 2
5 v: y# \9 p" q5 t  k2008-01-18 00:24:20 | playbr2 | 23 A* n3 [0 B9 _7 O9 s" {0 ]* l
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:; _& x2 p& K/ c5 ^7 w' a
Filename: DSC01158.JPG& }9 C: `1 P! W- C/ R2 D. s! q# @& `
Datetime | Downloaded by | Counts$ M" `1 o* q8 l0 Q# c: m
2008-01-18 00:25:24 | 阿感 | 2" G/ S+ [# Y' ]4 _1 g  @
2008-01-18 00:24:20 | playbr2 | 2" j( |# g) W/ l3 e
2008-01-18 00:22:02 | 但丁 | 2- j5 Y) L* \5 @0 m/ {8 ^
: h+ G7 ^, r5 p( z1 _5 k- v" s( W3 ~
點解大家都down兩次? XD

8 w3 b" w% P/ \, b* c* o

5 a: W8 H( K3 k+ O3 I我第一次開睇左2秒就close 左+ R# R# B* J3 g# W! J$ L, p. h
之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:7 }5 L! x3 J( \6 k5 `9 T
Filename: DSC01158.JPG
' w3 a5 j4 g' \9 T* e1 hDatetime | Downloaded by | Counts
) r5 l7 b5 r5 M; @" y4 m2008-01-18 00:25:24 | 阿感 | 2
! A; [1 X; `% t$ T$ [8 m2008-01-18 00:24:20 | playbr2 | 2
: V; ?' X) J; T# c( ^# A2008-01-18 00:22:02 | 但丁 | 2
1 ]: u& `, y9 R
: g4 S0 q4 a  p: \* ?2 |/ R點解大家都down兩次? XD

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快d捉我錯處
# I+ m; I2 W, C# _5 w話吾定我都打錯 + - 符號/ e6 d6 ~( G$ j  O, S- v
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當' Q' @4 W3 o4 q" T6 C! J! A3 q
不過,c=101n哥度(解除n係正整數的限制,只是整數)* `% K4 E4 \# V: O' B  ?& 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~)# s9 A5 n8 v  _$ C  ~
知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題9 ~7 _  b* t, Y
但原先是不知答案,所以唔知有無失根; ?3 Q- p' k2 y

9 U6 z, @! g2 h. P" H! H% x0 Z+ N+ H有時見到題目都感到有點不爽
: W( @! m0 i; C8 c/ ^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
6 ~2 c( S. R+ q. U' k3 _# [. t  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....
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% i+ Q" r( }. k# n  a2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:" `$ L+ i: c, X
冇答案ga....# ?, Q$ ?4 ^6 m) v' k
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2條equation solve 唔到3個unknown ga....

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agree 7 W  v+ P3 R# \8 ?4 z
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2 equations 2 unknows
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7 Z& y3 G# \& @7 ]if 3 unknows there should be 3 equations 2 d: W# ?7 G* m" J: n; ?

4 R( p% o2 v" \% |7 F5 F5 Bmake it simple 5 K9 H9 {" a6 Z

( J7 G5 d! o* W3 L5 w+ y0 |! ?say 5 `. j1 G; J& E8 M( z9 @( s
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a + b +c = 3
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) T& x5 r9 s7 b2 @a+b = 2
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then c is 1 8 f! w& ?2 D1 }+ b3 O

. @5 M- k) }- y! w" }) x8 H  sa = 2 - b
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so 0 = 0
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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:
: `3 Q- t& E1 @& t1 h; x( c( H冇答案ga....
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, X& J# I6 ~8 E5 l9 }; I2 }+ I6 s$ o2條equation solve 唔到3個unknown ga....

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此言差矣~1 ?  N1 [5 b- s6 _$ J
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2條equation solve 唔到3個unknown ga3 J1 @  }  ^: _) P6 A, ^; u) @
還欠一個條件,就是3條equation都是linear independent(線性無關)的
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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
6 z6 d+ B- f$ T: J; |! {9 c5 |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~)
& y9 k# G) b4 |例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解8 W  J5 I9 f  u: X+ P
有興趣就解解看+ [: |; N! ?& b  a+ U# F2 M' I# m
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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9 o, [6 r; v% I9 s( k! T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:
% Q( P+ K. A' p" C- H4 b' P捉錯處就唔敢當( e! A' a' D& R) D& M
不過,c=101n哥度(解...

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, o2 Z0 _/ I7 A6 _" \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. p; w5 r( l& Y, o* t1 e$ g
反而適當地調節一下 , 咁會理性好多
0 \& T+ p8 Q( }; A( c! H就好似隻game 由12粒珠 加到13粒珠咁
2 ~& B" ~/ i! G2 X當''堂''好玩哂
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p.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:7 G! F0 e2 Z" d: r" w+ K
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1 Z% c' j& v3 N2 K# N1 jp.s. 求''堂''字正寫...

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已是正寫吧