sakura310

Filename: DSC01158.JPG
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2008-01-18 00:25:24 | 阿感 | 2
2 p, e7 o0 A+ ?2008-01-18 00:24:20 | playbr2 | 2" S; G' X# ~% w5 F2 z/ S4 c) m
2008-01-18 00:22:02 | 但丁 | 26 n$ C0 o0 H1 Z- a. o5 v8 B, B7 Q

' Z& o1 o& b1 W' B3 p. b點解大家都down兩次? XD

playbr2

Originally posted by sakura310 at  12:27 AM:
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Datetime | Downloaded by | Counts5 p& Q0 g1 H  y; g
2008-01-18 00:25:24 | 阿感 | 2" i+ |) V4 c- t5 s! x
2008-01-18 00:24:20 | playbr2 | 23 |8 ^  N' c2 x. P* M" Z+ h
2008-01-18 00:22:02 | 但丁 | 2, [* D/ _! W. L% z: ]! T2 R" A
. ~/ W8 K* p: J. A) Q
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) D7 M3 e; `* A8 ~
之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:0 s7 V2 e4 ?2 h, r. t* O) r1 V! @& x
Filename: DSC01158.JPG- g: U9 a: `0 x( C; G; S! F
Datetime | Downloaded by | Counts, \# y4 [, C7 W0 C$ I7 |/ n
2008-01-18 00:25:24 | 阿感 | 2
/ C% ~+ ]( e) A, d9 s2008-01-18 00:24:20 | playbr2 | 27 ?! ^, R5 t; [, k, o7 R
2008-01-18 00:22:02 | 但丁 | 2
- Z4 J" P. ]# o: o0 [( i9 C$ j& y) j1 C0 Z  o& o+ R
點解大家都down兩次? XD

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快d捉我錯處+ W1 s: Z  W+ H0 y' a2 o
話吾定我都打錯 + - 符號, X( k9 Z* A" y8 P, ?: U+ O
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當
6 M  _. `8 Q8 n& j* }% w' L) J; g不過,c=101n哥度(解除n係正整數的限制,只是整數): l0 q& r9 p* s' Z' M- [
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~)
9 L0 Q& m: Z4 q2 E知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題
* g8 J. A; C: e7 b4 p! ]8 P) p; q但原先是不知答案,所以唔知有無失根
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& j( c& ~2 u0 H. k% B有時見到題目都感到有點不爽
! f2 W8 _& k( N/ W6 {1 |( v" f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
. a2 i5 L/ v% c7 w' g4 m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....; J9 E7 q: q' G. G6 s  Z7 H4 `7 J

6 p" d" s6 F" N2條equation solve 唔到3個unknown ga....

Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:5 o. l4 D# [4 o) A9 F. y
冇答案ga....
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2條equation solve 唔到3個unknown ga....

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agree : D: j8 j7 }/ \+ v) {
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2 equations 2 unknows6 O7 l7 C  e" h9 U+ t+ c- c

) n, \. n$ G$ v2 S3 wif 3 unknows there should be 3 equations
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make it simple
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a + b +c = 3
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a+b = 2: M" {4 j0 ~+ y' U. @
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then c is 1
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a = 2 - b
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so 0 = 0
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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:
: l4 a: S9 r3 k7 S7 j( r冇答案ga....7 l# E' u8 q# \/ d3 e6 N
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2條equation solve 唔到3個unknown ga....

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此言差矣~
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8 Y* l% C. X% g0 e2條equation solve 唔到3個unknown ga
" [% I' D" h$ W( {4 U; C還欠一個條件,就是3條equation都是linear independent(線性無關)的9 g0 U" H# @0 S# o, }' R/ |1 J

1 e5 I) n) P: {1 w2 m簡單點說,多元一次方程就是線性方程的一個例子2 }7 j6 I: `7 ^& H7 ?- p
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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! H, l1 [# O6 n8 l9 t# H% T) U6 X0 p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~)( O. r3 P7 U: ^1 b/ M6 T- `" S
例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解0 Z4 o0 i7 k2 t! R% ~& [) r
有興趣就解解看0 o; ^" a7 b* E0 W9 E' ]/ k! X* @
不懂的話就問playplay,佢會知答案

playbr2

Originally posted by sakura310 at  10:22 AM:5 a! {  \0 p. N3 ?# r. @$ W
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! O- c1 p" J7 s* j9 G, [% u9 Z/ E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:5 L- C# c1 j9 U! N* O
捉錯處就唔敢當
: f  g6 ?9 a2 ^7 B, u- G/ l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
/ ~1 ?2 p1 c, v& H反而適當地調節一下 , 咁會理性好多
% Z. z6 X7 m+ y" ~% u& i2 O就好似隻game 由12粒珠 加到13粒珠咁" Z* q$ t; D0 y- e
當''堂''好玩哂. ^( G* _; l' I  A+ x8 Q
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p.s. 求''堂''字正寫

QuiGonJinn

Originally posted by playbr2 at 2008-1-18 14:57:! j) e9 c; ~+ @8 o
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& Z, P# T/ k& v; sp.s. 求''堂''字正寫...

3 v1 @9 Q2 s+ i5 a% Z已是正寫吧