sakura310

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3 i$ V# X6 u% K' c9 Z2008-01-18 00:25:24 | 阿感 | 2
# ]7 h) \4 ?# p5 Z( `* }2 f) ?2008-01-18 00:24:20 | playbr2 | 22 e/ Y6 }" V0 f
2008-01-18 00:22:02 | 但丁 | 2( c7 Q1 v9 t6 n

: v& n0 W: p7 T4 T/ t點解大家都down兩次? XD

playbr2

Originally posted by sakura310 at  12:27 AM:- [- ~1 n8 L. n
Filename: DSC01158.JPG4 t$ x3 c3 D6 E$ j7 v
Datetime | Downloaded by | Counts+ Q/ c( y: {3 W! _) I% y9 [, g1 N
2008-01-18 00:25:24 | 阿感 | 2
# w8 f/ w1 ]; D: z+ h2008-01-18 00:24:20 | playbr2 | 2
4 N! ]# h# a9 R3 p; m2008-01-18 00:22:02 | 但丁 | 2, s# @# H! W* y7 c* M
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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7 [& T, f* q0 c' r, S
之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:7 w5 D  L* e! A0 b  y" r9 [6 H
Filename: DSC01158.JPG
9 H  S3 v3 I/ C$ a0 b( a8 ?, PDatetime | Downloaded by | Counts
; s" _2 d. v0 @* s2008-01-18 00:25:24 | 阿感 | 29 d' p" L+ |+ i
2008-01-18 00:24:20 | playbr2 | 2& p4 {0 a1 S; d6 k1 y
2008-01-18 00:22:02 | 但丁 | 2  V8 L) d% n0 D! n  `9 e

2 ]2 q0 ~9 u; u/ c  y6 ?( Y點解大家都down兩次? XD

( Z' D6 N6 z5 E
/ R# o. X  {" ?9 b快d捉我錯處
8 C4 m( _6 k0 W7 k話吾定我都打錯 + - 符號" C. I( \9 y5 ?0 I" |
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當
( N# I/ ]+ E# ~% `$ H4 d+ _不過,c=101n哥度(解除n係正整數的限制,只是整數)5 j! Z! ~7 p5 e/ A, ?, 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~)
  d5 b  l. f- W% Y6 |知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題; e% T+ F/ L3 m2 A
但原先是不知答案,所以唔知有無失根$ V2 l$ S: F' J3 F5 A

& v1 k) \; I) ~5 ~* ^有時見到題目都感到有點不爽
! w8 Q9 ]7 z1 o* L. ~' r7 J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' h) [' w0 M6 J$ @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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2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:& J; r7 B: K8 l, d/ q
冇答案ga....
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2條equation solve 唔到3個unknown ga....

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agree ( F( ~. g$ G- A4 f1 m1 }+ a9 e

. L; K  |4 H% X9 Z3 W/ N2 equations 2 unknows9 m& _8 K$ C. J7 Y/ B# u

" P! g0 `( ?$ Gif 3 unknows there should be 3 equations
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$ U: @7 Y$ G8 M2 _7 ~5 R) W/ Jmake it simple 5 ~" R2 e* P, K

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a + b +c = 3
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a+b = 2
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2 ^. I8 K" `  ?5 H" s) |then c is 1
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. [- _% |7 k9 oa = 2 - b
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so 0 = 0 # I# @7 y" f# F; b% d% ~9 j7 b
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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:
  ]# S6 B' Q6 ^; k% ^) B6 p  \$ X冇答案ga....% Q# K+ k# |6 y' E: J; H5 s$ ?
( I4 H6 ^( A( y6 R4 H8 j
2條equation solve 唔到3個unknown ga....

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! |  w2 l/ J. Y) _5 ^2 p此言差矣~6 i1 v5 ~, S3 F, u& c7 U
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2條equation solve 唔到3個unknown ga. h2 T, F4 A- c# P
還欠一個條件,就是3條equation都是linear independent(線性無關)的
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$ g$ X/ X4 I3 I8 T  A" g簡單點說,多元一次方程就是線性方程的一個例子
8 p  U. d# Z  g3 ~' ^0 U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~)" H# G6 A* B4 i+ Q( B& [+ W
例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解! p% d) T/ @* p% f
有興趣就解解看$ m  o8 |* ?' q0 _3 {! r
不懂的話就問playplay,佢會知答案

playbr2

Originally posted by sakura310 at  10:22 AM:4 C2 C8 c0 p# f3 j8 {! E, F/ {# b
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6 D- c, l9 q0 z% u3 H1 a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:
. \1 M7 e- Z% \2 l捉錯處就唔敢當6 x' q3 N6 D7 N4 u0 v, _( y) l
不過,c=101n哥度(解...

4 S' \+ O% ^: J' a
% s/ r! k2 B7 L: S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
" r  _  `1 a# m' ~' m反而適當地調節一下 , 咁會理性好多3 r8 {: y* e$ m- _7 i
就好似隻game 由12粒珠 加到13粒珠咁/ B. I) N( D' D8 k
當''堂''好玩哂( q; |* q) v# r7 l
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p.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:
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p.s. 求''堂''字正寫...

# ]/ U2 r& G% F+ d5 {  A. U已是正寫吧