sakura310

Filename: DSC01158.JPG; o- U7 J) ]) D
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2008-01-18 00:25:24 | 阿感 | 2& T" ^3 ~9 g, c) s& U) T. ~
2008-01-18 00:24:20 | playbr2 | 2# l' F" @) u' a, x& N
2008-01-18 00:22:02 | 但丁 | 2
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2 x/ b) ^5 z; t7 j點解大家都down兩次? XD

playbr2

Originally posted by sakura310 at  12:27 AM:+ q0 t& q' e3 w& ]& _- k
Filename: DSC01158.JPG
! U+ r, L. S/ J! p( e& d( ADatetime | Downloaded by | Counts; K! L6 l# v, c4 x
2008-01-18 00:25:24 | 阿感 | 2. u. |. o8 a$ h* A4 f
2008-01-18 00:24:20 | playbr2 | 2
2 ^5 a; W7 l/ Z2 u3 g2008-01-18 00:22:02 | 但丁 | 2" `4 c0 y0 i2 Z2 v+ k

1 J: v4 A( H4 a. q點解大家都down兩次? XD

+ p9 p+ j2 q2 p+ z- s
/ |7 D3 d: ^3 m5 X/ G' ^我第一次開睇左2秒就close 左
# D3 Y/ y' V0 `) Y之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:
' E2 P: J+ c8 ]2 D- FFilename: DSC01158.JPG0 \6 c9 k4 J- n+ p+ J/ N; I+ g! \
Datetime | Downloaded by | Counts
0 x' _0 N, t3 f( V! R$ b; W5 ^2008-01-18 00:25:24 | 阿感 | 2/ b, B4 P+ O1 R8 p6 t( m
2008-01-18 00:24:20 | playbr2 | 2/ C7 B0 G1 x4 q' z
2008-01-18 00:22:02 | 但丁 | 2
, ^) i. S! t4 \7 `/ Y. _: R- `7 q# i7 R5 H
點解大家都down兩次? XD

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& `8 x' m) [! U快d捉我錯處
$ u* B+ G) N- X0 ^  \6 r8 f話吾定我都打錯 + - 符號* f- y  i4 U9 b" u
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當
7 _* p' X: [5 P/ D不過,c=101n哥度(解除n係正整數的限制,只是整數)
$ L3 u! J8 n( C  |# w& v+ `7 p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~)  W' S+ v. {$ }
知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題- |: Y* |, Q  T
但原先是不知答案,所以唔知有無失根) m3 ]. k; O8 D5 T# _0 R

, z8 ^* C' O$ _: e; p2 w8 x( T有時見到題目都感到有點不爽% K' Z$ E" c3 X; K+ 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
6 h! H6 y* I# |2 V! w/ R6 i: W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:* A  s. g7 Q7 \6 H1 W/ [3 T- Y3 \7 K
冇答案ga....
- s8 {6 Y& l0 Z7 w; _
3 h& L* C5 T6 E: Z+ y2條equation solve 唔到3個unknown ga....

8 _; |4 b' o! n' a, w2 c. g( q; r$ b$ O' H7 u9 B" G; j- x; x
agree
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9 q$ l7 o) H6 _9 R2 equations 2 unknows8 G6 I+ s. P  g9 z% w
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if 3 unknows there should be 3 equations
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% {+ \7 N2 @$ B9 @- P, p$ ^make it simple / N# ~+ R/ Z! `1 m
2 @0 z( g2 \0 m- W( X% h
say
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' D( B' |& [# k4 \! Oa + b +c = 35 ]% G% X$ k# g2 y
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a+b = 21 w/ \3 X) _4 r. }! k8 D+ F2 A

9 B$ A) y- M* M1 cthen c is 1
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! W) }  f, H3 n% xa = 2 - b
, X" k9 J, Z/ X/ P6 v' {( Y$ b
so 0 = 0 . }# C0 a/ E1 E3 D6 e) R

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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:& ~9 E) [- o) v. m* N
冇答案ga....% g' b2 g5 X' I! @% }

: Q4 X; {" r2 Z2條equation solve 唔到3個unknown ga....

9 A$ O0 ^# S* ]8 w2 h
3 r' `( k% ~& w6 g8 p' n此言差矣~
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2條equation solve 唔到3個unknown ga
$ u' x& B  Q* p2 s$ z還欠一個條件,就是3條equation都是linear independent(線性無關)的. {8 ^# p4 c3 R. E

' j" P& Z: v. w& N簡單點說,多元一次方程就是線性方程的一個例子) U0 B7 S* x. f% 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+ D% l# L' f* x% F0 p

# E  B; r4 ]/ 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~)
! }" k% d+ c( f8 r! a, e' O0 N例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解
6 I, w. ]1 E: a有興趣就解解看
& T# B9 o! b0 Y6 c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:/ h! V: T; }" ^
捉錯處就唔敢當
8 O2 i4 q! N' A) y不過,c=101n哥度(解...

$ f7 _+ r2 a# O4 e8 U
; ], x7 R2 {0 a+ s8 f9 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5 B% `5 B: f, l4 r! ~4 e) C6 A
反而適當地調節一下 , 咁會理性好多
- [* B4 m2 H. q( ?0 S" M$ K就好似隻game 由12粒珠 加到13粒珠咁3 a8 }8 q8 F8 |" U' F6 m
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:
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, Q3 i' d) e5 \/ m% V' f$ Fp.s. 求''堂''字正寫...

4 \- z$ Z) J$ p! |, ^- a! {2 q已是正寫吧