sakura310

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2008-01-18 00:25:24 | 阿感 | 2
* D- K) ~7 y0 V( ?2008-01-18 00:24:20 | playbr2 | 2* w" p, r6 j& ^0 _5 F! [" [
2008-01-18 00:22:02 | 但丁 | 2' i9 I/ w( C/ K
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點解大家都down兩次? XD

playbr2

Originally posted by sakura310 at  12:27 AM:$ Q. B) T6 x5 e& J5 Y8 K
Filename: DSC01158.JPG
( p6 y8 {/ w$ dDatetime | Downloaded by | Counts
0 @3 \/ B  D5 S$ X! K2008-01-18 00:25:24 | 阿感 | 2
5 t* X+ a4 ^3 z# Y2008-01-18 00:24:20 | playbr2 | 2
( x6 @" s) g2 R) L2008-01-18 00:22:02 | 但丁 | 2
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/ @2 K+ b! Q) D# D* L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
  {& S% g5 j8 i1 U. `$ D1 O之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:$ Y5 L+ ?: @# B7 L6 c. J3 s
Filename: DSC01158.JPG
1 J8 b& q: Z( Z# A9 pDatetime | Downloaded by | Counts( f* P2 e- W, B+ P& i
2008-01-18 00:25:24 | 阿感 | 2
$ {" [5 Z' l" a( w  I2008-01-18 00:24:20 | playbr2 | 2/ {$ a0 {) B3 C( [! \; J
2008-01-18 00:22:02 | 但丁 | 2; j1 N" t# A& G% i9 h
6 _( P' E& _4 w  H6 |
點解大家都down兩次? XD

# m* U2 y7 e: j4 f0 x8 }% z1 d" A- p
0 t: i" y' k% Y# D快d捉我錯處, X: S) V) Q$ w% r
話吾定我都打錯 + - 符號
( B9 O# C, k* J: D- `# l* O係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當
5 r  D2 t4 j& ~/ w- c- ^不過,c=101n哥度(解除n係正整數的限制,只是整數)
: c3 V+ g0 V3 d/ ?2 k3 I% a6 \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~)7 u* H$ U2 j2 j
知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題
) E9 E2 Q( Z3 O9 {但原先是不知答案,所以唔知有無失根( T' S4 H# G% |  D$ }9 I% `

0 j- t6 c! `6 S2 o) T有時見到題目都感到有點不爽
) ]" ^. `. j& j1 Z9 P% [+ 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( e3 r1 Y- w* K' A% B* 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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2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:, q: N, d: P; R! r
冇答案ga....' v2 c) j  h8 J7 [* U# [$ w5 n
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2條equation solve 唔到3個unknown ga....

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3 h- I& I' a4 ?, l6 w/ e' `4 ?! ^agree
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! G" M) p  t. ~+ g6 U2 equations 2 unknows
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/ b5 U: a' \+ I: H6 rif 3 unknows there should be 3 equations
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make it simple ; M8 D& z, d" w- m# a
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say * h/ R! w& v( z
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a + b +c = 35 n: g# l. L2 `

6 j9 H, L) B: X3 G- u2 |a+b = 2* g6 e- ]; I* t  S" k; t* ?1 B
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then c is 1   K; R4 p6 t' c8 a0 H, p

! M2 \+ \9 I0 ~' Z7 u, s; fa = 2 - b # O% ~4 {; c( g- v+ l; k3 V% ?
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so 0 = 0
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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:
/ ]$ L6 {5 ^! X! C3 r2 Z% T冇答案ga....( c" j* i3 a7 q1 d5 J1 l

7 ^: C6 z! @4 ]# h# E2條equation solve 唔到3個unknown ga....

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, o4 k6 V: k- |* W1 _% c9 [! f8 }此言差矣~
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7 i% r& K" L$ C% R2條equation solve 唔到3個unknown ga
( m: Z# f2 A, [1 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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簡單點說,多元一次方程就是線性方程的一個例子' z) P: Q" i5 ^" _, Q9 M
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* d2 e* O  C3 V/ ?# z
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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~)
# C4 `4 g2 }8 k: d  |) c! f例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解6 U/ {, D- M/ g# j0 A
有興趣就解解看7 m# N) H0 w1 U! H* 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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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:
9 R2 v$ l& l" H& c! E捉錯處就唔敢當. t  l. U, Q' W! T' m
不過,c=101n哥度(解...

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% \/ P# L" v! q3 b0 Q3 j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
% A0 V3 h! \' H0 R2 S( d# @反而適當地調節一下 , 咁會理性好多
4 O- x! e3 c8 `, I4 A- T6 {2 B  @9 a就好似隻game 由12粒珠 加到13粒珠咁6 ^& w1 `4 r' m$ m
當''堂''好玩哂
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; {: ~* |4 x4 h; D  [% ?% ^" a6 Sp.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:! ~7 c% |/ m1 X# M0 |
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p.s. 求''堂''字正寫...

" _8 j7 @6 g% ~. b2 z! P已是正寫吧