sakura310

Filename: DSC01158.JPG
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. r( q% ~; g8 }0 Y2008-01-18 00:25:24 | 阿感 | 2+ k; D! [6 ?$ \
2008-01-18 00:24:20 | playbr2 | 2
0 S% g, @% c- r+ q+ t8 j7 a2008-01-18 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:- Q% I3 E: B2 H
Filename: DSC01158.JPG
4 s' U; R( Y6 U0 m# }Datetime | Downloaded by | Counts* r) J0 z; O: j8 D( f# _
2008-01-18 00:25:24 | 阿感 | 2
* U% S& g/ j6 d7 m) C0 K( s0 F2008-01-18 00:24:20 | playbr2 | 2
. N; M/ J6 k0 i; a6 p9 I9 _2008-01-18 00:22:02 | 但丁 | 2- v. f* y) g% j
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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
! h0 _& ~% b. o# B9 ~之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:
4 ]- Y1 h0 G3 Q. mFilename: DSC01158.JPG
9 g8 M. u6 X! H! q2 iDatetime | Downloaded by | Counts; L( A* f- [, J
2008-01-18 00:25:24 | 阿感 | 2! H( ^' v, H% U% R# T
2008-01-18 00:24:20 | playbr2 | 2* g: r& E8 \" {/ z! x
2008-01-18 00:22:02 | 但丁 | 2$ X# J4 m3 ^% P$ T- D+ T

' l' A2 d4 c+ `7 |點解大家都down兩次? XD

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; }  i3 {2 Q  j) B: b( U快d捉我錯處9 o5 s! h( O8 A/ X: \/ t
話吾定我都打錯 + - 符號; r9 @: R6 W9 S/ e: x" R( Q  J
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當8 a6 Y9 A8 I% X! L7 N& Y& s
不過,c=101n哥度(解除n係正整數的限制,只是整數)" L; Q; B+ j" \8 \+ u5 L
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~)
" \4 M& b( j  N( T+ H; o5 o知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題
: Q3 _0 `1 y. s3 i" o但原先是不知答案,所以唔知有無失根" y  p% ]8 S/ Q$ f# V9 q
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有時見到題目都感到有點不爽/ J9 U# v6 h5 X. q! b7 p* I: p3 X) X
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2 L! s5 B# \, E  m7 E
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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* e8 m+ q4 {- |- s5 q0 z* k2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:
9 A5 @8 n1 c0 i2 A' {0 p冇答案ga....' y8 W! |2 z% ]0 F: _

7 z1 F5 D& X3 a6 D) D6 R2 o1 [2條equation solve 唔到3個unknown ga....

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agree
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2 equations 2 unknows6 V, b# M- T/ C8 S

2 g/ }3 I* H' p  e' lif 3 unknows there should be 3 equations 5 u3 J7 I1 D- ~/ A& }) x

, z9 q: ^& M8 F9 @' u* N" lmake it simple 7 z8 I1 g, v4 q) t" T  |, ^

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a + b +c = 3
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a+b = 2
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8 ?' g6 H6 \% o4 q' _! tthen c is 1 - s2 l9 R. Y, x3 q( U
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a = 2 - b ! S  B6 K8 M% p1 F) m' j2 x

. h; [* U/ H$ A1 Z( o# W, kso 0 = 0
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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:3 H; {: ^! S  b6 R6 j  h" \* v. c
冇答案ga....
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$ r  b- X$ H- U  Z0 ^2條equation solve 唔到3個unknown ga....

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此言差矣~
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: ~, {; I6 @  [+ L2條equation solve 唔到3個unknown ga
3 x1 t1 \, b1 u- O7 }還欠一個條件,就是3條equation都是linear independent(線性無關)的$ Q# R3 q* Z. s) S, H7 H

4 V$ h; f# Y: e; e7 y簡單點說,多元一次方程就是線性方程的一個例子
5 v% U! _; ]" G- q. h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4 E% V; b# k$ c

6 k% M# {& C- p' W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~)
, g6 z3 S- `& s8 f6 U. m/ |, \例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解4 v, w7 L0 v6 ?! ^0 K, c
有興趣就解解看
& c$ Y7 X+ R1 o4 A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:2 K0 b) X* I$ w$ r, g
捉錯處就唔敢當
6 R! r, m1 U2 x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6 b% C+ F) z% U; w8 s, B
反而適當地調節一下 , 咁會理性好多
5 f* V2 ~0 U' t* X就好似隻game 由12粒珠 加到13粒珠咁
. V. D9 h, n- k3 M3 c當''堂''好玩哂
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8 J6 o8 b8 G0 C% lp.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:* I2 j# c' }0 M5 T8 j% j3 p4 k

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p.s. 求''堂''字正寫...

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已是正寫吧