sakura310

Filename: DSC01158.JPG4 x) A. Y! x6 w0 z9 r  u
Datetime | Downloaded by | Counts
) O9 N0 T" v9 l2 F5 l2008-01-18 00:25:24 | 阿感 | 2: h3 M# w3 I3 x* }
2008-01-18 00:24:20 | playbr2 | 2& i2 W; P* u9 r9 U9 n8 u+ [. L% r* F
2008-01-18 00:22:02 | 但丁 | 2
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點解大家都down兩次? XD

playbr2

Originally posted by sakura310 at  12:27 AM:# ~. B8 N1 U1 E3 O4 s
Filename: DSC01158.JPG# O9 ^8 L/ U6 B. \3 W* F+ [; I
Datetime | Downloaded by | Counts( V3 ?) D7 u+ e* g' s& r
2008-01-18 00:25:24 | 阿感 | 21 A: ~7 k$ I5 F4 E) Q/ ^& l
2008-01-18 00:24:20 | playbr2 | 2
- x4 _1 q' P. _2 I& x. J2008-01-18 00:22:02 | 但丁 | 26 O" N' e  {* r

. l  M- c% Q' v! p5 n1 B2 c: |點解大家都down兩次? XD

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- s$ o) N1 z) r6 j% I/ O' t我第一次開睇左2秒就close 左/ v0 L* @  E3 K5 a+ p3 \2 \
之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:
$ U6 c& `7 W# f& H1 u  hFilename: DSC01158.JPG, p8 e  F2 g# ?. @+ A) d. v3 c: z3 v0 ~/ [
Datetime | Downloaded by | Counts
; i3 v7 j1 D. v$ |5 k2008-01-18 00:25:24 | 阿感 | 2* b! b1 n0 P3 F: H9 x
2008-01-18 00:24:20 | playbr2 | 2
* l6 k' ?) k8 L  H2008-01-18 00:22:02 | 但丁 | 2! A) C  x! a0 |& W( }3 b
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點解大家都down兩次? XD

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% M. U+ K7 c" C& _4 E  ~3 v+ r5 x# V快d捉我錯處
  }1 x4 H/ @6 Y* o7 I: _0 G話吾定我都打錯 + - 符號$ k1 t$ a6 s9 _5 w
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當
' D3 C# A" M) `. C9 `& f不過,c=101n哥度(解除n係正整數的限制,只是整數)2 `4 v6 [* m  l& o. U# a: g! d! _
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 H* Z2 z4 _$ l0 Z& c5 ~3 ?' ~知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題9 g, e, q+ Y+ D% u/ ~; Q2 t& Z
但原先是不知答案,所以唔知有無失根1 x( E4 N" N9 ]: S, N
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有時見到題目都感到有點不爽7 Y1 }. C3 Q: M4 h# S$ b6 N
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! Y! d0 K: Y2 c9 O' d0 C
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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7 \1 V2 M# j5 V. Z+ K: i2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:( |1 W1 ~+ {6 E, U3 }+ D$ c9 W
冇答案ga...., Y7 X# C  f$ T) a

% S; I- }- R7 Q9 s# f7 S' J2條equation solve 唔到3個unknown ga....

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" P6 L& h% g3 ~agree
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2 equations 2 unknows
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if 3 unknows there should be 3 equations 7 z( n! c3 P$ w; e  @2 }' V5 \
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make it simple
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. L3 X/ b/ l: L. \say
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a + b +c = 3
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6 ?8 I/ t1 M/ G. L) |0 d! Ya+b = 2" z7 U% @- K' v

/ ^6 m& X: f( ^. J) Fthen c is 1
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0 v/ o9 g4 X9 K, aa = 2 - b
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so 0 = 0
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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:
5 i: t2 a. z" V冇答案ga....
4 K) K2 S7 J, d8 }
2 i2 M" C( L; y2條equation solve 唔到3個unknown ga....

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$ H1 O9 M0 P2 g! G6 d  J& V4 p4 o此言差矣~
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7 I3 S2 Z$ R1 Q2條equation solve 唔到3個unknown ga  d. d5 r. d1 N% c3 L& J
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
# l& e! _7 Q+ |! t0 |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: c; ]# n% P. ^0 x9 \/ D
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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~)
0 P1 Z6 w- r8 E: H* w0 U例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解
0 Z0 K; C4 @2 k3 A有興趣就解解看3 z+ d& n4 w6 U" n  H
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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9 }4 ?+ {. k4 Q9 @+ {. y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:2 U- h9 u2 r# o5 O- u* V8 }
捉錯處就唔敢當2 V1 n# z0 {2 A8 n/ i3 o
不過,c=101n哥度(解...

3 m3 J% W7 h3 a, ?0 u; @4 |5 X4 I' i" L, @! L2 g
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 a# j" `2 ^* j5 {. u; c
反而適當地調節一下 , 咁會理性好多$ F+ [* Q6 |& z" q
就好似隻game 由12粒珠 加到13粒珠咁
7 ]: m5 a# W2 b# E1 y8 G8 s0 v4 V當''堂''好玩哂
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p.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:% E6 l. ?8 a. ]; ~+ t$ g

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p.s. 求''堂''字正寫...

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已是正寫吧