sakura310

Filename: DSC01158.JPG
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) }) d3 T" u) M- W8 R" V4 k2008-01-18 00:25:24 | 阿感 | 23 U1 Q( {; r1 C; \- A, X5 U
2008-01-18 00:24:20 | playbr2 | 2
9 F; ^% ]# B/ K2008-01-18 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:
& \9 c+ c6 h! P8 YFilename: DSC01158.JPG! |5 j$ s: M1 L- N0 p1 V
Datetime | Downloaded by | Counts
) s; `' q9 h. `, C* m  q4 p( ]2008-01-18 00:25:24 | 阿感 | 2
. h$ H  Q* ^# C" |. Y6 ~7 r" Q2008-01-18 00:24:20 | playbr2 | 2  j7 D5 j% k, x% c
2008-01-18 00:22:02 | 但丁 | 2" u& o2 `, j. j' s3 k! x' c: z& C

  E. u3 V( {. e% a; z- {: ~* c點解大家都down兩次? XD

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1 O! [# e9 C* ]  }. S& a我第一次開睇左2秒就close 左
, x6 b* f+ V( u; y之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:
& z: z+ b( {1 C5 c6 \; hFilename: DSC01158.JPG7 E; k7 l' k" R) @% r. W4 i
Datetime | Downloaded by | Counts
! F! L, R! `5 K% P, L2 R0 _2008-01-18 00:25:24 | 阿感 | 2( X6 m8 x& n# P) ^' G4 c
2008-01-18 00:24:20 | playbr2 | 2; G( a$ k; Y6 m6 }, w: [6 A5 ?
2008-01-18 00:22:02 | 但丁 | 22 Q' C# _0 n/ W. S# K
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點解大家都down兩次? XD

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* d5 G8 k# `- L# k1 g2 o) Q3 G快d捉我錯處; Q. b! c/ G2 M3 ?4 _5 `2 G5 R
話吾定我都打錯 + - 符號
4 F% F+ p. C4 t) R* R係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當
& K5 B- t1 c7 \0 K* T# y不過,c=101n哥度(解除n係正整數的限制,只是整數)
9 u- f. c, o& ?( o, n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~)
) k0 l0 C& U% j6 W/ q知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題1 ?2 Y+ }. T' R% K* i/ x" D6 @
但原先是不知答案,所以唔知有無失根. n  r4 t5 N9 q5 j% B

5 V3 L* S% G& k有時見到題目都感到有點不爽
4 e% v) M9 [8 r6 a# D  w) K6 i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& |* a8 T$ Z. y% D5 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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% i5 j4 O" T9 H5 P2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:
9 V' v; Z# V* {' z/ P5 p+ k冇答案ga....2 l5 K/ h) Y& K4 h& V

, X$ X2 v* V: t6 |( L7 N' M2條equation solve 唔到3個unknown ga....

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agree
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" m  Y; Z; P* i9 ]2 equations 2 unknows- u: e6 R2 `# s

2 W5 s$ h8 u1 h/ B7 Dif 3 unknows there should be 3 equations
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: J, W# o. ~3 T5 K( [! w  jmake it simple * A2 l; O" {( O3 k/ ?6 S
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say
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a + b +c = 31 k  G1 C" ~3 C+ t
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a+b = 2; R8 e  M7 X$ y( n6 Y; s
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then c is 1 ( u  d/ E; O; g( c2 H
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a = 2 - b
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so 0 = 0 6 f5 Z. d6 @* j# R% r: x0 ^

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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:
( l5 T- v" Y6 n  I" k冇答案ga....
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6 g8 ]) M; y6 o( R% b2條equation solve 唔到3個unknown ga....

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. y8 G% {5 i$ a1 M( {% S4 N$ i此言差矣~4 d. Y, O( I0 ?' G2 P# H

% y7 t4 I  Y/ k( K2條equation solve 唔到3個unknown ga
; r$ ~! _; G4 o: Y. ?- t, c還欠一個條件,就是3條equation都是linear independent(線性無關)的: X2 \' n( V; k1 ]  t$ F
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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 B$ l2 j$ F5 ^4 W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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$ X( P+ P7 u3 W9 V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~)7 n# r; S% a% Q. h" }3 q; M
例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解
0 Y( l6 I% I7 R/ [* r& h有興趣就解解看
- ~. W! N" Y: [' y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:3 d$ `. \& \% X0 d: d
捉錯處就唔敢當
7 D6 h' c! X6 p# @' ~6 I) P, d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! d9 @( W6 Z" Q3 h) b/ s7 ?8 A
反而適當地調節一下 , 咁會理性好多
3 Y9 _+ M+ T8 f0 W就好似隻game 由12粒珠 加到13粒珠咁
! z. f$ K6 e' _: l當''堂''好玩哂
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0 F5 ^  @  F1 m% C+ X1 Ap.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:' m6 v( V7 g8 @
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p.s. 求''堂''字正寫...

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已是正寫吧