sakura310

Filename: DSC01158.JPG7 a( x) g5 W. A- P
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8 A7 `+ ]! R1 k2008-01-18 00:25:24 | 阿感 | 2# M; [; h# ~7 ?1 }
2008-01-18 00:24:20 | playbr2 | 2
) k  l! O" Z- K* U& S4 q; I' O2008-01-18 00:22:02 | 但丁 | 2& _7 t8 I. h/ ~' y* W

9 Q* c" N* L) n0 W9 v0 T點解大家都down兩次? XD

playbr2

Originally posted by sakura310 at  12:27 AM:
% ]' H( T) P" ?/ a- d2 Q0 mFilename: DSC01158.JPG3 ?; U. o' B8 _- z' W1 D
Datetime | Downloaded by | Counts
% X, U' N4 I7 [  n3 `% [2008-01-18 00:25:24 | 阿感 | 2, P9 F8 q; H, S% \% o4 ]
2008-01-18 00:24:20 | playbr2 | 2' D+ j) D, e7 ]1 h0 b6 D7 V# g3 K
2008-01-18 00:22:02 | 但丁 | 2% E: H  e2 J: ^" T% s5 {' F

: }2 l4 e. y0 G8 D) x點解大家都down兩次? XD

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$ s0 E% n5 |! I' J1 [* W" ]我第一次開睇左2秒就close 左3 ~8 _' D4 L3 H! F* G" Y9 M& \6 F
之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:
! ?8 V- f9 [4 g" [6 DFilename: DSC01158.JPG
2 t% e4 |: B! g. `6 @  w: B$ C0 bDatetime | Downloaded by | Counts8 b& Q' W0 X3 l# _7 i* h
2008-01-18 00:25:24 | 阿感 | 20 H' Q0 h5 _% v# _9 F- I! V
2008-01-18 00:24:20 | playbr2 | 2/ k2 Q6 p5 E, p* @( E- D
2008-01-18 00:22:02 | 但丁 | 2
0 H6 ]/ B( B( E" ]" P9 }0 {$ {5 f0 \' K" k# C# a# E8 a6 H; B
點解大家都down兩次? XD

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快d捉我錯處
2 O# y2 T9 v% K話吾定我都打錯 + - 符號
9 t# f7 Y, {/ g" l% B" L5 y係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當
) F1 p0 J% l' c" w! X# C* }不過,c=101n哥度(解除n係正整數的限制,只是整數)7 a) ?6 p6 ]* ?4 n9 y1 S
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~)9 I1 h6 i7 J3 A" @/ N2 V
知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題  D9 d5 h7 K7 v8 Q( }' |- N
但原先是不知答案,所以唔知有無失根' R1 j6 a# X  l  D( H
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有時見到題目都感到有點不爽
$ i/ @% c! b8 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
3 p1 O1 j( G3 f6 T" B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:
3 T/ y: G  Q% v0 Q9 s' N, l4 \; E冇答案ga....- ~! l4 ~% V$ y6 N, b8 J
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2條equation solve 唔到3個unknown ga....

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agree
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2 equations 2 unknows1 S  z0 w6 F9 _. l/ _& U

) k0 k5 O) e- }' K4 _if 3 unknows there should be 3 equations 1 I. q/ n) h2 q, ?; D1 R# B
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make it simple
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& l9 F2 `1 E6 K/ U7 u7 v; Csay
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a + b +c = 3
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' [, J# q2 c+ [9 [$ O8 B$ da+b = 2
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0 e; Q6 v. n5 H5 e& D+ q- G+ K# _: rthen c is 1 0 z* D' o# R: \" y5 M2 J" X
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a = 2 - b
$ v) h/ z- q, M! m9 P# W( _8 x, E, F3 D* B  `$ F& M: f
so 0 = 0
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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:
- ]  E" B4 j% }冇答案ga....
0 V0 w& r. U* P! k
0 ]) l/ J& s3 I* I7 P  ^1 U! |: s2條equation solve 唔到3個unknown ga....

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此言差矣~
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1 Q( P5 C3 N4 n; b5 {( i- P2條equation solve 唔到3個unknown ga. U  s6 D( _+ w0 V
還欠一個條件,就是3條equation都是linear independent(線性無關)的
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: v. \2 N8 I& p. M+ q簡單點說,多元一次方程就是線性方程的一個例子
$ J5 s. k& S& `5 A4 b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~)3 O: u1 n" C4 X9 o
例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解( ]2 c/ @- @( S- o6 H' A
有興趣就解解看5 D! [& q% K% l6 L$ ]
不懂的話就問playplay,佢會知答案

playbr2

Originally posted by sakura310 at  10:22 AM:5 U+ Q, W* o& m8 \

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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:
3 C. Y5 t) l3 G捉錯處就唔敢當
) }  U: m& w) g" g" \2 m不過,c=101n哥度(解...

) O7 w, h0 ]% o3 x8 k+ h

, M& f0 u8 `& ^7 d+ 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/ m: I7 t* o( b) F  l: [( `
反而適當地調節一下 , 咁會理性好多
' e; l0 u) p  L6 b# T" u就好似隻game 由12粒珠 加到13粒珠咁% c  }& l6 |7 u! c. g  w
當''堂''好玩哂
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8 W% N  i7 W) {, n+ L! c4 \' xp.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:" n& k( `3 A8 ~3 b0 _

* {2 |( b, X  t4 N6 P# j6 v. }; s5 Y( H) f# d, q9 g2 p' i$ x4 x
p.s. 求''堂''字正寫...

5 B3 q' }5 t8 w: @已是正寫吧