sakura310

Filename: DSC01158.JPG
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! o% p" m1 L$ S' m: D8 Y2008-01-18 00:25:24 | 阿感 | 2
3 Q# K+ Q" @* X% X2008-01-18 00:24:20 | playbr2 | 2; Z0 G) H5 e) g' ^( S
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:
) u: G" d8 F+ ]* Q% g7 T9 r( o$ KFilename: DSC01158.JPG
" B3 D! n! y# l, o3 f2 VDatetime | Downloaded by | Counts* C% k. o- n4 q. e, f1 d2 o# X0 Q
2008-01-18 00:25:24 | 阿感 | 2. M, D! z8 M6 L
2008-01-18 00:24:20 | playbr2 | 2
9 _6 ^7 O9 v- K2008-01-18 00:22:02 | 但丁 | 2
7 d& B& [& B. r) x# Z- l, V1 [" x- R3 J  [6 p- R- C; E
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
2 w; M% L3 y* z( u. p/ ^( i' f之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:% y4 U2 N+ L: N! F
Filename: DSC01158.JPG5 {4 q4 W; d; ]5 @; E2 {
Datetime | Downloaded by | Counts
/ K/ E( L/ X6 `4 x2 G2008-01-18 00:25:24 | 阿感 | 2
- D) R7 J5 z2 E4 I6 t2008-01-18 00:24:20 | playbr2 | 2! f! h- r5 m" x8 j! j6 ?
2008-01-18 00:22:02 | 但丁 | 2  W" N, D/ |- k; i1 Y  Q

2 P; Z1 Y$ n1 k* g# J點解大家都down兩次? XD

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# s" q3 o% L( b' R: R3 ^快d捉我錯處
! d# ^+ w: x+ _0 I$ d, |話吾定我都打錯 + - 符號
; ?7 v, |( \" r! C" j) K: X" Y係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當" r. _7 ?1 Z8 v( Y, r  T2 Q
不過,c=101n哥度(解除n係正整數的限制,只是整數)
  I0 G! P; @9 p. i/ z7 Y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~)- b) C( |% X, X9 e7 \+ H
知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題
/ V7 }6 M% E4 T" ?但原先是不知答案,所以唔知有無失根
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- K; u8 o; i) `& W+ Q! y有時見到題目都感到有點不爽# S0 i2 o6 K( m3 R  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
" }* |+ o: W+ i5 M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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" @6 s' R& T- H. I2 G, _6 [2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:( G0 A3 ^6 f) k2 I. E
冇答案ga....1 g0 W, Z+ z* V! k* Q
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2條equation solve 唔到3個unknown ga....

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7 k  X  E  d1 B5 ?; R3 gagree ) o7 E1 S  @4 ]1 `5 V: v8 j* a4 F

$ @  B, m! c& Q) g* _) K2 equations 2 unknows" b7 C+ Y. ~  ^0 c( J/ o: K
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if 3 unknows there should be 3 equations
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make it simple 7 V$ B% t, i1 n: \/ q9 R1 o4 R

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1 P# B0 G2 }) Qa + b +c = 38 S% i/ }/ y: t0 T  d

1 z& l' u* o1 ?; u/ _8 L' Q% |9 Va+b = 2# `% u5 d6 E8 c+ x1 y, \: n
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then c is 1
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3 c$ d, t$ o. b' B" g. Ga = 2 - b 4 Z. L; p9 T. X  L, S
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so 0 = 0 " u! J% p4 u, M0 P+ v. [

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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:3 |% L6 v7 }, r, _
冇答案ga....
( n# ~; }/ X0 z! G+ x! @2 ?* u: `# u- W( Q$ H
2條equation solve 唔到3個unknown ga....

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+ P, b( l, j" |" b, P此言差矣~% T8 g& g$ b2 l" h6 j5 r, [3 x

; }( [* n5 H3 T7 H$ i! Q2條equation solve 唔到3個unknown ga( E% H4 f3 D- R) E$ z+ G, m) I
還欠一個條件,就是3條equation都是linear independent(線性無關)的# m# ]2 x0 e, L  l) m

* B# [# D! Y( @: K簡單點說,多元一次方程就是線性方程的一個例子; k/ F1 p0 e' U  m9 h9 E
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~)' u2 o' S1 j) c7 t" w
例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解
. L" l' J  |9 ~/ T& g# M6 k  A有興趣就解解看3 t( v* i9 ]  T
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:; t  T  {6 ~% \) B9 t' `9 K
捉錯處就唔敢當3 D/ r- q4 b2 i& N
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
# K& E) \2 V$ L/ {1 I$ K4 e- }9 J反而適當地調節一下 , 咁會理性好多
' s; J4 h" K% d) f, ?就好似隻game 由12粒珠 加到13粒珠咁
0 ^) w) V, \) D" C5 I當''堂''好玩哂9 h2 Z7 ]# U5 `7 l8 ^& z. Z

. `# I, }5 ]* l- Qp.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:% {6 y* K( C$ J/ g) x# m9 X

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6 @  t# i, |1 v8 kp.s. 求''堂''字正寫...

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已是正寫吧