sakura310

Filename: DSC01158.JPG
* ]8 L# I  z7 Q; BDatetime | Downloaded by | Counts
) @; W1 M3 C/ ]2008-01-18 00:25:24 | 阿感 | 2
8 x' y- C) y4 k2008-01-18 00:24:20 | playbr2 | 20 o/ b  \" v' ~7 U
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:- V; ]% X- J" B( d
Filename: DSC01158.JPG% i% ~- K+ n7 C! u$ ~6 T" X
Datetime | Downloaded by | Counts& x- Y4 u+ b8 ]2 @' ?
2008-01-18 00:25:24 | 阿感 | 2  P5 H4 }0 D& Y6 t3 R2 u
2008-01-18 00:24:20 | playbr2 | 2
5 M& K2 }( m% O- K. [2008-01-18 00:22:02 | 但丁 | 2
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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* _- ~% p1 A$ v( f
之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:" z" c7 @0 _( A9 u, d% Y2 m" j( Q
Filename: DSC01158.JPG
$ |) ^, |5 v$ e0 a) {. i0 ~Datetime | Downloaded by | Counts
, t* [6 Q/ y5 K0 m2008-01-18 00:25:24 | 阿感 | 2
0 _* N- w* a7 A2008-01-18 00:24:20 | playbr2 | 2; K$ Q- S- T; f/ n4 u1 E
2008-01-18 00:22:02 | 但丁 | 26 V( l! x' K+ o& M; F2 P1 |! ]

2 N7 K$ A+ D4 ?! _  v) n  V點解大家都down兩次? XD

3 C, j% p( _# U7 F9 N9 K2 e9 S4 p. G0 ]* O0 {7 B
快d捉我錯處
8 Z8 M" C2 g( `2 }話吾定我都打錯 + - 符號1 m( e! ]0 g, L
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當
& m/ j9 q4 R$ T; |3 N0 z不過,c=101n哥度(解除n係正整數的限制,只是整數)
: x% H( U2 o$ R. z" }: {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~)2 x# ]" T: Q4 y" s  h9 N- J
知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題
: B/ j6 i" G: t' T! i$ r但原先是不知答案,所以唔知有無失根
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有時見到題目都感到有點不爽& b# S9 y4 m2 |: \4 f! v
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5 Z8 N6 \) o$ V4 e( Q0 T4 k
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....3 X4 k7 M6 l: O$ N+ n

, l$ Y7 x4 F8 A' d4 c# z2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:/ Y1 ^5 D5 V6 a8 @
冇答案ga....& e5 {" m+ w, j4 H/ R
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2條equation solve 唔到3個unknown ga....

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( z1 l- v1 ^. [0 j7 m& `
agree
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2 equations 2 unknows9 [# k( N% _% T% h9 _* Y

4 r; R# P( \! ^8 H+ D9 _) A3 wif 3 unknows there should be 3 equations
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" d0 I! X+ ^# dmake it simple
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say 9 _, A& x( g3 f

( U  P" Y2 M8 h6 la + b +c = 3$ b7 A) `: ?; S% I  v
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a+b = 2$ d+ U  q& C( I, e$ D* {' d+ R" [

# J. A. U$ Z2 C: r# z- Wthen c is 1
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a = 2 - b - p8 W' l& |, U4 G$ x  N3 {! p0 E
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so 0 = 0
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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:
; j. W8 p, i) a4 p8 w* t# @冇答案ga....) ^  U, k0 Q, ]( ?

) m' Z0 q$ m: E6 v  ~" A) A% ]2條equation solve 唔到3個unknown ga....

6 m0 Z& c% n( F* X  W% A+ F; j6 k. {* z' N' B" i
此言差矣~
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5 W% h1 g1 R% F! \. p4 O* L2條equation solve 唔到3個unknown ga
$ Q6 b. u) b" \6 @1 `9 s還欠一個條件,就是3條equation都是linear independent(線性無關)的
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1 T8 c! B# K& e% a1 Z0 v' J簡單點說,多元一次方程就是線性方程的一個例子) K2 i! H) d1 _- u) q: 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9 I2 C! i. P% R) c- O

% D, u+ p# Z. a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 [2 m( L& @: M* h% x9 ?3 H例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解1 B8 h# \: V1 V/ J- U0 S
有興趣就解解看
) Q* h" G, L- }7 ~. [不懂的話就問playplay,佢會知答案

playbr2

Originally posted by sakura310 at  10:22 AM:* e6 d0 \8 D( j, J# S+ F

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( V, b6 X* N- }; Z' B; s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:
, N7 e$ g& C, y& T2 R捉錯處就唔敢當1 V+ c2 Q$ G+ `! `( @. f
不過,c=101n哥度(解...

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5 i, P+ P9 J  b& q" b# i2 h; ^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
& R5 E5 P6 p3 Q. a  `: w8 c反而適當地調節一下 , 咁會理性好多) T+ C9 |( U$ |  I
就好似隻game 由12粒珠 加到13粒珠咁+ W: K2 u) Y  O8 z9 C5 W0 j
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...

7 J' J$ v8 L4 l已是正寫吧