sakura310

Filename: DSC01158.JPG
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: n+ k0 n) K; f* P& v4 p2008-01-18 00:25:24 | 阿感 | 2' s5 v( q6 ~9 W. Y6 e: J6 {  m
2008-01-18 00:24:20 | playbr2 | 2
4 ]! }. x8 u' f( U  K; h2 Y/ l2008-01-18 00:22:02 | 但丁 | 21 \3 N$ `5 G! k7 C, y$ w$ P
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點解大家都down兩次? XD

playbr2

Originally posted by sakura310 at  12:27 AM:
2 N0 Y7 \4 Z& eFilename: DSC01158.JPG
2 A  e5 ?5 y4 C: ]9 ODatetime | Downloaded by | Counts
. f4 W; ]. E8 t, T9 E2008-01-18 00:25:24 | 阿感 | 2: S2 h' A; h9 b$ X) \, c
2008-01-18 00:24:20 | playbr2 | 2
! k0 [1 Y# ?4 R, i. ~/ E2008-01-18 00:22:02 | 但丁 | 2
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' j, w' {+ K+ r點解大家都down兩次? XD

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我第一次開睇左2秒就close 左
% z1 h' {" Z( Z: G6 Z0 O. c! a! P5 w之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:
- X4 k; J* T) n; W  i9 c; ZFilename: DSC01158.JPG8 u' ?! H! N" s" ~- C# Z
Datetime | Downloaded by | Counts  d2 Z* ~2 a  F! L: E. |# I
2008-01-18 00:25:24 | 阿感 | 2
' p7 D$ O+ N! y( H! z2008-01-18 00:24:20 | playbr2 | 23 i5 E, Z& f& ?2 y' f$ }
2008-01-18 00:22:02 | 但丁 | 2/ X% A0 w( f, m  i
, A) J' j& u- H7 W+ V% i
點解大家都down兩次? XD

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3 x, _0 @6 F6 y" ^$ \2 H! T* x+ q快d捉我錯處
. k% s) o$ G* C9 u% ]* j& b* |話吾定我都打錯 + - 符號
# a0 p8 t1 ?; Q# a係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當  f" ?- N7 `# W1 b& o
不過,c=101n哥度(解除n係正整數的限制,只是整數)" q/ A8 E$ _: r5 e! Z" T
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~)* G3 W( n! ?8 Y" E+ [$ R* a
知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題
" S, ]8 A% S& M( e但原先是不知答案,所以唔知有無失根2 b" R4 @8 f% t9 {( Z0 e( x3 W" _
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有時見到題目都感到有點不爽
! p4 a3 p) H2 ?$ e& s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  \8 K1 p- {0 @+ _2 H+ c
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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  W. t  V# ^, A& P  x) {" f0 g0 f% p" `2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:, ?* C8 m& c9 [* E
冇答案ga....
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2條equation solve 唔到3個unknown ga....

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6 b! c, I3 a, ]- g+ c5 J! ~! eagree ) _; o! k9 R8 @0 A9 S5 M9 m

3 ~! O: g6 E& X2 equations 2 unknows
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if 3 unknows there should be 3 equations ) U6 Z& s5 t0 o9 w

3 D. c- q& D5 j& a! B$ |make it simple
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say
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: t  }9 [$ Z  b, n( D9 Ta + b +c = 3
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7 }: q8 u5 a' Oa+b = 2
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then c is 1
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a = 2 - b # N0 r8 M' v+ n* t8 N/ y7 ~) J

" [: w' X% F- ?) G% J$ xso 0 = 0 " O( z; t+ y. S' b! h; _

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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:
( ?1 q4 p1 ~4 }8 G冇答案ga....
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2條equation solve 唔到3個unknown ga....

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' J; U, O- {8 ?  l$ T! `此言差矣~
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2條equation solve 唔到3個unknown ga
- a' Q; n1 K1 H, y" T9 s3 a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
( i8 i8 p( a' Z+ U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, b3 z1 Q- d; z5 _# b% t0 z- M* }

5 ?5 Q( ?! U) M$ C. [- o, \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~)
+ u3 @: A9 G5 Y" x) K# C例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解
$ a- \- ^- k3 a) X+ H7 K% B2 O* w有興趣就解解看+ r- k( n2 j( x* X% Y( _
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:- d' M! q. P4 s  X
捉錯處就唔敢當
( a2 C+ C/ B+ p  d* _- P% y- y不過,c=101n哥度(解...

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& U9 g2 s% z) q2 k" P7 l. @7 }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
, k7 i- A, \' ^/ F8 E反而適當地調節一下 , 咁會理性好多
# p7 f! }% i( f3 n, U& h就好似隻game 由12粒珠 加到13粒珠咁9 T# r- h' [, A% F: z) z2 u7 O
當''堂''好玩哂& x  U& X6 _# O( I2 w, ~7 z

5 e" S9 Q- U4 M! mp.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:
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p.s. 求''堂''字正寫...

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已是正寫吧