sakura310

Filename: DSC01158.JPG
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2008-01-18 00:25:24 | 阿感 | 2- l' I0 r" h, D# I7 M; C  S4 ]
2008-01-18 00:24:20 | playbr2 | 2
' O4 ~5 ~: ?( d" u: L  s6 t+ T1 N3 j2008-01-18 00:22:02 | 但丁 | 2
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3 j. ^1 F  Z) |9 c9 c: T2 T$ ]點解大家都down兩次? XD

playbr2

Originally posted by sakura310 at  12:27 AM:
/ m& N. q+ }* f6 l% \0 _% ~Filename: DSC01158.JPG
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& z8 Y# a9 {7 b2008-01-18 00:25:24 | 阿感 | 2
' [! l/ Y+ D# C: J2 [2008-01-18 00:24:20 | playbr2 | 2
' O; H% F/ k4 W4 T! O2008-01-18 00:22:02 | 但丁 | 22 o9 t3 z: \* D5 V6 M( Q
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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
+ g' G+ Z) }9 y/ z/ [) ^之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:2 O. D+ W# U& Y2 m2 V! g/ R
Filename: DSC01158.JPG  d1 a; _  L8 ~* q: L. O+ F: J
Datetime | Downloaded by | Counts
) I0 u% U) g# d! E9 ^2008-01-18 00:25:24 | 阿感 | 2) n. w9 N# L/ N. r9 u
2008-01-18 00:24:20 | playbr2 | 29 f% q/ @9 P! R1 R! z1 F( W6 ]
2008-01-18 00:22:02 | 但丁 | 2
/ a& n" f' @3 q7 f1 h5 [: M9 L! a) ~/ w9 v
點解大家都down兩次? XD

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快d捉我錯處3 H# n2 L* }# ^. f) M. |  o
話吾定我都打錯 + - 符號# `  Q) D2 p% M) X
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當
" ~- g1 n/ U. j8 U8 t4 l5 E不過,c=101n哥度(解除n係正整數的限制,只是整數)9 ~  A+ @* w2 \' x
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~)  v' k& O, U# ^" r
知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題
- Z7 V( C; a3 f, d+ N. ?但原先是不知答案,所以唔知有無失根
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有時見到題目都感到有點不爽/ a8 A, G2 m4 w" Z$ k" V  z8 f
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
) M* @& w4 \( m$ D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..../ S' D. ~% u7 J- c2 ~7 K" U
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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:
% M/ q9 h; m" a0 G3 M  V冇答案ga....& a# I4 R6 i  F  N$ O$ r/ W
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2條equation solve 唔到3個unknown ga....

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: q1 P0 P" x# ]5 y; X: W' Uagree
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2 equations 2 unknows% E% C/ [7 |, H8 y1 b8 E- S/ p

% h% u; _. n2 E  v/ h8 Vif 3 unknows there should be 3 equations / c8 d* ]5 c4 H5 O$ c& V, N

+ H! s. u: l9 C3 D. Cmake it simple
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* |+ j; v/ B2 zsay
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a + b +c = 3
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a+b = 23 n: E) n. \, u" o& f  Q; H2 J6 l
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then c is 1 8 d4 n( m  m+ \- W* p5 r
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a = 2 - b 5 ]% ^$ M, |) o: f

+ @6 S4 ^+ l0 N% F! U; _so 0 = 0 # M' u' q. a( H% ?# X
: ]) P4 m1 g+ J( m

sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:0 Q" Y7 M# u7 l0 s
冇答案ga....1 u' K' S! v* G6 g7 d, `! f( k/ U" p
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2條equation solve 唔到3個unknown ga....

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5 r) ], r1 b! H( A此言差矣~
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2 U+ f( U; e( e" ]4 D9 ~1 V$ |2條equation solve 唔到3個unknown ga9 R7 |) U! g3 p+ e; _- E
還欠一個條件,就是3條equation都是linear independent(線性無關)的! P; j- U; t( b

9 w3 J, H( q2 a簡單點說,多元一次方程就是線性方程的一個例子2 }/ K0 v, r0 `# A$ B5 k" l: n
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~)
% A$ C2 E+ R3 F! f$ X, g例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解
( k- ?: o: I& A/ ?# E) v" O有興趣就解解看
6 R7 v% Z0 ]- D& v3 U5 v$ V不懂的話就問playplay,佢會知答案

playbr2

Originally posted by sakura310 at  10:22 AM:" T: h3 K' e  `7 A8 Y
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9 {2 X  t+ O4 p. t( j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:
+ U/ G4 W, H* `# A$ c0 C捉錯處就唔敢當' j# f% G2 n& I  J
不過,c=101n哥度(解...

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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
& S- H! q* W% f反而適當地調節一下 , 咁會理性好多
# |/ F* O8 w' h' J; v" q就好似隻game 由12粒珠 加到13粒珠咁
+ C. t, Z. q( G3 W! N! n當''堂''好玩哂- z2 B+ k2 _) @5 A* P& x

6 ^( D# d3 |  N$ {" L4 D* Xp.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:3 D  t) Y! B. n# U

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p.s. 求''堂''字正寫...

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已是正寫吧