sakura310

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2008-01-18 00:25:24 | 阿感 | 2  y, P( A1 S. s
2008-01-18 00:24:20 | playbr2 | 24 s: X8 _) ?9 R' l9 I# n' J- h
2008-01-18 00:22:02 | 但丁 | 2, ?* w3 U* b5 }9 e- F

& ~6 @5 i7 E6 a5 Z! H5 e點解大家都down兩次? XD

playbr2

Originally posted by sakura310 at  12:27 AM:( v4 @( m. G! o% l
Filename: DSC01158.JPG
: E! @0 _6 a& c# {2 n, DDatetime | Downloaded by | Counts. Y3 j: ?% O# h% D2 Q4 V
2008-01-18 00:25:24 | 阿感 | 2
9 ]4 X2 ]" @/ h% n7 q1 ]* i2008-01-18 00:24:20 | playbr2 | 2, q8 Q. ?& l3 R$ |
2008-01-18 00:22:02 | 但丁 | 2
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點解大家都down兩次? XD

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  v# U, S% V- \7 i: J我第一次開睇左2秒就close 左
7 |% {3 ^6 g# F  u3 R之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:2 J/ F/ j" h% R, R7 v# v; Y8 B
Filename: DSC01158.JPG: R* s8 H5 r' p5 A+ t- e+ _- y
Datetime | Downloaded by | Counts2 S) [' f& I$ {3 d' i. s( m
2008-01-18 00:25:24 | 阿感 | 2
3 I, A, i  o0 u6 V; A2008-01-18 00:24:20 | playbr2 | 2
8 f: @# C9 F5 e/ \2008-01-18 00:22:02 | 但丁 | 2
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! j" `) l. _* v' T點解大家都down兩次? XD

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快d捉我錯處2 S0 E6 U( Z2 S; V1 k8 D" [
話吾定我都打錯 + - 符號
9 H* Z- m/ `" q: b! S係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當/ [7 X$ X' y7 [/ ^  p. h
不過,c=101n哥度(解除n係正整數的限制,只是整數)
. P) z( f9 Z/ g" f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~)+ I( M! t6 o. g/ g1 z
知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題
7 n' g4 w6 O* E( C, C9 _但原先是不知答案,所以唔知有無失根
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4 i: K  E- i/ A' u( l; @3 ^有時見到題目都感到有點不爽
) @7 r, p3 r4 J: t/ a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
. y6 |7 I3 J- O- W1 }/ G' 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....1 S& [" W8 R5 m- m  v) q

0 J& r* x, G/ ^# `- {: m2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:! r* H- j- U5 V) }: b
冇答案ga....5 O- c" ?* ?' c0 @7 c9 v1 k
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2條equation solve 唔到3個unknown ga....

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agree ! D7 ?( R3 ?* F5 f$ o0 }

% Z: b$ I  E+ d) x2 equations 2 unknows2 y. {0 J7 S1 A

' {/ W8 x3 Z; N: q' c0 P  M8 vif 3 unknows there should be 3 equations
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- \# u( D" R" J2 @# }make it simple
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' T; S# g2 X# l8 s* e% ~say ( o* P: ?' Q  X# y" W
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a + b +c = 3: T' W  ?0 A# \' e0 X' b
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a+b = 2# A8 }& T0 V0 d. u0 p1 P

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a = 2 - b
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; S" Y' }" w* }% Bso 0 = 0 9 L$ n! F& r. Q/ o7 g) @: s
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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:* L5 e: G- [6 N8 P# _/ p6 x5 z
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~
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2條equation solve 唔到3個unknown ga
. h  O0 z- e, P& ~: d  [0 e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
% t6 D$ H* {' G5 d$ \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, {0 r! t1 m) ?7 j) D# ^% {

8 r  X; i+ X! g( U& k7 [& ]( r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~)& q  o+ t0 X8 P0 j$ [. H  q! x* g
例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解  w$ G; X4 f! x4 |: p7 m
有興趣就解解看8 ]* K3 x, H$ t2 u$ S% e- 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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  u  {6 I3 `9 K& F2 y$ }( l9 H/ b) I1 L7 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:& X/ T# x' T9 \) L
捉錯處就唔敢當: W- r/ w/ Y! C8 a! ]
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
" Y. P3 @9 h7 Q3 D反而適當地調節一下 , 咁會理性好多5 L! ?9 \' }, x$ o# {( ^
就好似隻game 由12粒珠 加到13粒珠咁
0 A+ C* b( o! |1 Y! O2 ^當''堂''好玩哂. h1 v+ G9 R! E
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p.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:0 ]+ n3 o& b. q+ m5 o+ }5 E( R
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p.s. 求''堂''字正寫...

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已是正寫吧