sakura310

Filename: DSC01158.JPG8 C. R% r/ t. K# p' l. y
Datetime | Downloaded by | Counts, S" P3 r* A# U/ x7 W* h6 S
2008-01-18 00:25:24 | 阿感 | 2
9 I' t7 h& Q; m6 L+ N5 N2 p; l6 k2008-01-18 00:24:20 | playbr2 | 2
2 \1 ~7 y  V, f- Q/ `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:/ t' s- {/ p. w& q/ n/ E
Filename: DSC01158.JPG
) Z8 A, N# B! n5 ?( n- CDatetime | Downloaded by | Counts# U- m3 E! C' t& ^
2008-01-18 00:25:24 | 阿感 | 22 B8 a8 m* a! x' C8 y
2008-01-18 00:24:20 | playbr2 | 2
( T  W# I- |; n2008-01-18 00:22:02 | 但丁 | 2
0 w5 H; K* M5 v/ \5 t' t# ?, J+ c+ v* L8 u, p. o
點解大家都down兩次? XD

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8 O3 p; S8 R7 g0 S" J3 @* a我第一次開睇左2秒就close 左
8 V2 r: j  G! {' h6 [1 R8 u之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:
( j+ U) r) G$ H  q) C$ XFilename: DSC01158.JPG' k4 C* V0 g! M( Q- ?/ r# i# _  W4 a
Datetime | Downloaded by | Counts  L+ h+ p' `, a6 R
2008-01-18 00:25:24 | 阿感 | 2: W: o6 U+ D# ~* L+ Z
2008-01-18 00:24:20 | playbr2 | 2
, n; b6 _5 s- Q5 n2008-01-18 00:22:02 | 但丁 | 2
  Q" L2 p8 f# ~( N/ i! m% L0 `0 k) }3 N+ ^( s4 A0 C& R: ^. b( C
點解大家都down兩次? XD

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快d捉我錯處
* L4 K/ ~5 o7 S& u8 X話吾定我都打錯 + - 符號1 m/ ~. Y( r8 p2 B
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當
* M, d, K) `/ h0 ^5 y不過,c=101n哥度(解除n係正整數的限制,只是整數)
* i4 A6 W9 k  G: p; R! A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~)
; O/ F3 a# @! I# w- h6 z, M0 ]- {$ D5 ^1 R知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題" D% J: d# [7 n- i* K! p6 m# O3 j
但原先是不知答案,所以唔知有無失根! d& w& @% N4 X9 R4 y$ n4 A5 R

# O6 X3 q6 y' b1 R有時見到題目都感到有點不爽
; ~2 m0 v" r; U: x" w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
9 _* x' w/ i, x$ _5 }& \8 R3 [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....4 r' W0 T1 k$ }$ C& y

3 C9 D" U* b* B. }0 [2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:
& c6 z, S; A, f, Q( q9 c冇答案ga...., y( g  C4 i# M, Q' z

' z% b& J/ ^) l% n- q. K' E2 l2條equation solve 唔到3個unknown ga....

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4 V. B, A& a. [8 M' d7 U, Hagree 6 ]. Z! U% G4 f( A% H

% d3 R8 E8 e+ H, P2 equations 2 unknows
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3 ?5 o- W- a, l: eif 3 unknows there should be 3 equations
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% q* T2 e7 W9 l& z& ~5 Y  f1 Xmake it simple ; {# Z7 @% a3 r

8 t( p7 ^8 L- k+ N) z5 F, W" |say
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& d6 c: S( g2 F& d8 e/ E4 Wa + b +c = 35 B7 d" h. E# ^7 B/ j# i1 k4 F

# v/ B- N) d3 [. a7 wa+b = 23 G0 o+ @  Z8 T+ l" k1 I2 J

/ C2 B. L+ v' Pthen c is 1
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% d" U7 G$ e3 Ya = 2 - b
  F  x1 C2 f; B
- z- S) K. g3 X5 m& R% u( aso 0 = 0 , z' p" W, f3 W4 }: x& i
6 g9 [" D- Z4 `, c* q, h

sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:8 T. t& I- L" v" N1 s/ t$ g
冇答案ga....
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2條equation solve 唔到3個unknown ga....

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* d8 i# E/ m4 q此言差矣~0 e# Q6 ]* Y# u

9 v7 |, `" o( w# r3 C2條equation solve 唔到3個unknown ga
* c. L: T$ f. O' B+ Y還欠一個條件,就是3條equation都是linear independent(線性無關)的
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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
* b- H& t" ?. ^1 O3 j4 j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& c( {, M+ V/ s/ F/ q. E; @, [7 z
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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~)! ~0 F! P4 ?1 L. V' F4 Q. Z
例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解
# V) M/ n, N% d0 h; ^# R6 M+ b有興趣就解解看
, C2 G1 L7 a) s. ~不懂的話就問playplay,佢會知答案

playbr2

Originally posted by sakura310 at  10:22 AM:$ H$ Y5 f5 ?8 f" l" a/ L" Q: `; Q( \. w

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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:) Z6 @& n. s' D" e( u) G0 l4 _
捉錯處就唔敢當
) ~% g( X7 l; b! K) {6 p不過,c=101n哥度(解...

% s' b* p+ _4 p8 b

8 h* s- n# U% D  T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 E) A# @; B% B7 a3 _反而適當地調節一下 , 咁會理性好多
% r6 N. E/ G0 A" n3 _5 s% N就好似隻game 由12粒珠 加到13粒珠咁8 H. ]+ ?! l5 u8 ?; b4 T
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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p.s. 求''堂''字正寫...

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已是正寫吧