sakura310

Filename: DSC01158.JPG+ J( p/ c* |3 y
Datetime | Downloaded by | Counts
6 ]2 m4 S' |4 w6 @2 U% C1 b- K, b' G5 K( N2008-01-18 00:25:24 | 阿感 | 2
; Y, _' p8 M# F2008-01-18 00:24:20 | playbr2 | 20 z* E' o4 ]3 g1 {" o7 \) @
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:
! J% w& P* S( _' r: fFilename: DSC01158.JPG
% \1 q( A& G) l: D2 O2 Z+ l( y) LDatetime | Downloaded by | Counts# R. ^7 @4 o; g( }0 O6 F3 r" l
2008-01-18 00:25:24 | 阿感 | 29 p& t6 F& J& h8 l; N1 g/ i
2008-01-18 00:24:20 | playbr2 | 2
4 n+ {+ x" h: z  X, k, Q+ w2008-01-18 00:22:02 | 但丁 | 2# \, r/ i3 K/ _  s
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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" I$ v( q0 W0 c4 K
之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:4 |9 Z: L- Q: `! h4 d* F
Filename: DSC01158.JPG
% J7 b3 _+ O9 R& z6 cDatetime | Downloaded by | Counts
9 i& o1 g5 s( X: b2008-01-18 00:25:24 | 阿感 | 2
  _, l3 \% S' ^+ K) `! [% a2008-01-18 00:24:20 | playbr2 | 24 f1 d) c# q6 X  ?6 r0 \
2008-01-18 00:22:02 | 但丁 | 2
; U9 u3 f# ]* `  N: m$ F: J' t# a/ O# N
點解大家都down兩次? XD

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快d捉我錯處
6 t) o6 K% h: `+ x# }& \話吾定我都打錯 + - 符號& i! Q2 n& V% @: L: S
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當
) w& g& R* W9 M& ^不過,c=101n哥度(解除n係正整數的限制,只是整數)- l7 b0 }6 s7 u' B7 ~9 R' r
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~)
0 c! j$ M, a3 c- \知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題
7 B5 G2 _- W, r# ^% {" Y但原先是不知答案,所以唔知有無失根
7 i8 }' [' d% W) n" q: t) Y; I5 A$ \( p9 v3 k$ E# `! a! ?- p
有時見到題目都感到有點不爽
  x# g8 e/ S9 S. W6 Y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0 T$ g0 |5 u5 i6 q+ O+ m% S& @
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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) M9 ~" A. n0 p2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:
1 y. R- ^4 d2 z* v' A. Y冇答案ga....2 A) u* c* Z+ S& V/ m, E: n& J
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2條equation solve 唔到3個unknown ga....

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% e, y3 e7 x7 _* k. l  `agree 7 E% k$ u2 X6 v, K! \
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2 equations 2 unknows% D8 H4 ?/ b& p& p5 p+ s

  J0 v; o* ?5 Z6 o' G# K& dif 3 unknows there should be 3 equations # }4 r- F/ S( s# C
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make it simple
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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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; w! P  N* K' H/ m" ^1 Z, ja = 2 - b 7 w5 D; J5 t% c7 d7 N; k
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so 0 = 0
$ c& A0 h) {+ w! E- y: V, ~; f8 a) P  r+ t* d! ~

sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:
2 Z8 K) d; A- y( y! e冇答案ga....$ d& y% a# i: I# R, Y
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2條equation solve 唔到3個unknown ga....

+ v  ~3 c" r+ H8 h
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此言差矣~- ?: u) a- C% Z! C5 e8 e* @
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2條equation solve 唔到3個unknown ga4 P. v% N# D% W& F- H
還欠一個條件,就是3條equation都是linear independent(線性無關)的7 r% X' ^5 Y8 L5 ^- D7 Z
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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
5 g+ i( R; |  D5 {% l( {3 G6 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7 R8 c" B0 U: u) X& ?

/ B+ ?% D' }6 A4 ^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~)/ T$ B0 q# _. r7 i
例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解3 ]. s! V" }0 ?- ]9 {2 z
有興趣就解解看
1 Q& e' Q* c" k3 G) i- S3 z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:6 I2 D$ y$ l$ c$ ]
捉錯處就唔敢當
$ R1 E6 p" C  Z( c2 Y7 q; i# O不過,c=101n哥度(解...

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" C( Q9 V, ^" \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0 t% h6 n4 A' N4 E% ]+ p3 q1 J  z7 r
反而適當地調節一下 , 咁會理性好多
1 ^8 L# J; W1 y1 X+ K4 U就好似隻game 由12粒珠 加到13粒珠咁
/ g1 U. {" y& V  o當''堂''好玩哂
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$ }8 B, ~; v& |: ap.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:' H# ^& a$ g5 S7 Z0 c

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p.s. 求''堂''字正寫...

# h7 Y* n/ \  _0 f+ o2 t  s5 l  \6 x已是正寫吧