sakura310

Filename: DSC01158.JPG
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2008-01-18 00:25:24 | 阿感 | 2. [4 Q. ]9 {( m& [$ N5 o# F
2008-01-18 00:24:20 | playbr2 | 2) B5 B" `2 A; ]) p  Y
2008-01-18 00:22:02 | 但丁 | 2
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- _. a0 {' Z0 D( ?7 Y& ~. x點解大家都down兩次? XD

playbr2

Originally posted by sakura310 at  12:27 AM:
, ]5 P8 k- u* PFilename: DSC01158.JPG9 c4 X' K! F% z6 q* H6 ?) e
Datetime | Downloaded by | Counts
) T7 q8 `7 b0 D6 ?  [" s0 P2 F2008-01-18 00:25:24 | 阿感 | 21 W* ~, }) O* H0 B0 }' H, S1 M+ R
2008-01-18 00:24:20 | playbr2 | 2
1 U3 w0 k5 }; k/ |, e/ j1 z6 P. w/ @7 n$ y2008-01-18 00:22:02 | 但丁 | 2
5 c+ L+ M. Q/ ]- ]
* c; T( H6 j8 H( n& n6 g  k點解大家都down兩次? XD

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! c2 Q! k- u* L) K8 S2 f& |我第一次開睇左2秒就close 左
& F5 H3 F* z% @. U: f6 d之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:& s: `4 y1 q4 {% X
Filename: DSC01158.JPG$ C- ]+ j( N+ h1 \" Q/ C6 {) T
Datetime | Downloaded by | Counts# h2 V: a8 G: Q. H
2008-01-18 00:25:24 | 阿感 | 2
% q) U+ W- O3 x: r: V8 a4 p4 Q2008-01-18 00:24:20 | playbr2 | 2
, m! y2 f5 X, o8 B2 r2008-01-18 00:22:02 | 但丁 | 2; h( A, k8 I* V5 |) r* Y# Z9 j  p

1 \5 W9 R, Z! f點解大家都down兩次? XD

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1 H4 r; M* I0 N" q7 W6 F3 e& }快d捉我錯處& t! d: G! E* a8 Q# ^/ g. F! I
話吾定我都打錯 + - 符號6 K% n4 q5 U9 p5 ]7 z  D; ~
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當6 |9 Y' [" K; ~. s- J$ O
不過,c=101n哥度(解除n係正整數的限制,只是整數)& B1 h* b% S& e3 O* p$ }/ \* M
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~)
( l0 S1 O: H0 g5 A( n知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題
! N& H3 g! I2 P9 h1 c& m但原先是不知答案,所以唔知有無失根, t! m5 K% g7 g
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有時見到題目都感到有點不爽) T/ Z' |  _+ {3 k9 {
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 z6 n1 W$ \' m' I
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....! T+ w+ U1 f3 ]/ J5 N/ q( ^
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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:: O* G) O8 }* T* y3 j: d
冇答案ga....
- F  K" [* d& N3 g$ ?0 \
- N" k# |* q' a2條equation solve 唔到3個unknown ga....

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2 B- g- g/ K' w2 equations 2 unknows
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, e7 V! D  N$ ?/ Q; G# e6 bif 3 unknows there should be 3 equations
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make it simple
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a + b +c = 3
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a+b = 2
) p( {7 y0 S1 P* U) q
6 p# k1 S4 M9 t6 J  P$ {- hthen c is 1 9 `. Z9 c& M: F  W
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a = 2 - b / B( r9 e( _0 q: ^0 [. a

9 E+ s% Q: c! R, H& w. aso 0 = 0 - M8 X( C; Q1 K7 H6 v
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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:+ C# S9 @0 S$ q- s3 J
冇答案ga....
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2條equation solve 唔到3個unknown ga....

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此言差矣~5 K& y3 v. \  x" E

6 D% y. ^9 t2 _' Z2條equation solve 唔到3個unknown ga
/ O$ u- h5 N& v還欠一個條件,就是3條equation都是linear independent(線性無關)的  p8 r8 _) h; ?' M5 X/ H- n% X

* g, r* k% s1 Z: I0 t簡單點說,多元一次方程就是線性方程的一個例子
/ E" T2 Z8 J( J' R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~)
- W/ x" m" y8 `# m/ F/ C, v例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解
* U  F# X- H8 r8 ?9 L- O有興趣就解解看
9 f, ^, `/ |1 G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:* f" }. {* Z1 J
捉錯處就唔敢當4 @% p; v* Z) o; P
不過,c=101n哥度(解...

, S3 w- K8 [5 [* h' j9 |8 b2 D7 I. G
5 V# w4 @/ _4 S: X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
7 j  d9 }7 f# |9 `反而適當地調節一下 , 咁會理性好多
$ c( }6 E+ x( n就好似隻game 由12粒珠 加到13粒珠咁8 C7 c" N% w5 E5 q' F2 u( H
當''堂''好玩哂" y  W0 m) V( R  V* r

& N8 p4 ]7 W4 N; E* h7 Ep.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:8 ^( @! T2 e' P' G, `6 B: n/ b
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1 x3 e- T( u$ ^p.s. 求''堂''字正寫...

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已是正寫吧