sakura310

Filename: DSC01158.JPG
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2008-01-18 00:25:24 | 阿感 | 29 |# c" r( l) I
2008-01-18 00:24:20 | playbr2 | 2
, ~. V6 f0 E. J: G: Q2008-01-18 00:22:02 | 但丁 | 2; M& @! _+ e8 E$ ?8 Q/ R3 ~

9 v. k8 U1 N* O% U! c點解大家都down兩次? XD

playbr2

Originally posted by sakura310 at  12:27 AM:
0 n- ^+ Z+ c1 ]9 O6 }+ TFilename: DSC01158.JPG
: l% j) L% E2 j+ W. K. pDatetime | Downloaded by | Counts
; z; f0 W! M6 s4 h. }2008-01-18 00:25:24 | 阿感 | 2
( N7 N# I- c! S, F2008-01-18 00:24:20 | playbr2 | 2
* m, J0 i: d$ O  K2008-01-18 00:22:02 | 但丁 | 2
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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, d7 y- X7 a2 [8 E* [
之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:
% n& W( \  t) o  U/ N( qFilename: DSC01158.JPG
& a  J; z' m7 R7 U. G1 d# FDatetime | Downloaded by | Counts$ M, v' J$ A9 C( [
2008-01-18 00:25:24 | 阿感 | 2& \2 a/ D+ b8 Y5 I8 j
2008-01-18 00:24:20 | playbr2 | 2
) |3 `( W+ m) D$ h, {  ?2008-01-18 00:22:02 | 但丁 | 26 [% v; l, h) O' Z) X) G" g

% Z& Q: u0 S2 g9 f8 L" |# M0 ]點解大家都down兩次? XD

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快d捉我錯處! I% Z6 ^2 y$ L' t2 v# u1 W
話吾定我都打錯 + - 符號% k1 B% K( W1 {6 d+ q8 d9 X0 o
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當; I1 o4 y& @$ b
不過,c=101n哥度(解除n係正整數的限制,只是整數)
; U4 x; B5 i, ?" |( u" h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~)) f# M- C/ c5 [  ~7 T2 c  M! S
知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題- r1 v1 e2 P- v; q# c
但原先是不知答案,所以唔知有無失根
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3 a$ x3 {; ]. i% B: d有時見到題目都感到有點不爽
2 I+ B, J8 f7 V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
$ r6 U3 [7 ?7 u3 u, l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....: q. l; N$ A# [3 H" j: X

- g% e; X. W  }" o* L( N2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:
/ y3 x) @, N4 w" s8 J冇答案ga....
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2條equation solve 唔到3個unknown ga....

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agree 3 Z7 A% \  @: B4 K! G
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2 equations 2 unknows: B* s3 G6 X$ u

  {7 w4 n- v5 V/ x. D/ {if 3 unknows there should be 3 equations 3 S& D6 x1 S) U5 |

9 E  b. M* y! u/ Pmake it simple
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say & {8 M; u; b6 D4 ?/ D- q$ v
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a + b +c = 3
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a+b = 2
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then c is 1
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' w5 Y/ _0 s! \7 B. l" S- k' Za = 2 - b # G& P. |2 G- o+ a/ \8 t

5 B% M9 Y9 y. Uso 0 = 0 ; g4 P: A; x* N+ V* f/ Q

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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:
% i1 z2 r# n8 R7 s冇答案ga....* U3 n9 s$ |7 A$ U. P0 T* X- E

% U6 r; E; [; J( W2條equation solve 唔到3個unknown ga....

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8 F6 j# }, L8 g& h$ D此言差矣~0 c+ I; L% X: o, z
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2條equation solve 唔到3個unknown ga
4 `; s) }, y& G! B5 ]還欠一個條件,就是3條equation都是linear independent(線性無關)的2 C. U; a( w7 q, T" b  }6 ^; x
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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
1 N! C2 Z6 k0 V% \% |. 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6 b; O9 ]' ~- ?0 P! ]
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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~)
) V0 U, t9 d# A( r4 K* `, m& i例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解
, W+ L" S$ j/ R, c  `: O" o有興趣就解解看
. b; L4 l9 q  b# D. P9 S+ l4 Y不懂的話就問playplay,佢會知答案

playbr2

Originally posted by sakura310 at  10:22 AM:4 \9 H0 `7 I& Q5 R5 e( A$ b

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# P) [5 J$ L: @* V. H. U9 J1 {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:# b! {7 M& _: [5 z# v5 {- V, @
捉錯處就唔敢當
. k/ e% ~6 h, r$ J# f不過,c=101n哥度(解...

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/ _* z* v# o) k" ?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 G" v. i/ a% P# S6 ?
反而適當地調節一下 , 咁會理性好多
+ k' ~& o* j1 ]( x就好似隻game 由12粒珠 加到13粒珠咁
% Z5 g3 _7 k$ E當''堂''好玩哂0 w9 j* U# a, c: X; F3 \, |
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p.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:
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- k" S( l! H; Q# I; @7 Fp.s. 求''堂''字正寫...

6 n" A& j0 B: h& e$ j已是正寫吧