sakura310

Filename: DSC01158.JPG- Q6 Y% j: C4 {( w* _8 B% b
Datetime | Downloaded by | Counts$ J6 d6 l/ j4 {) }7 V2 f% g* \
2008-01-18 00:25:24 | 阿感 | 28 `# P0 N3 A- `7 e  f$ V3 c' m
2008-01-18 00:24:20 | playbr2 | 2
% h3 f+ w2 y! q2 O2008-01-18 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:
. [2 M6 G& H8 R2 q5 m: L# }Filename: DSC01158.JPG' S+ q# {3 Q$ y
Datetime | Downloaded by | Counts
; k+ ^. O* o0 a4 P2 x0 t8 j2008-01-18 00:25:24 | 阿感 | 28 W& r, a" V# `: y
2008-01-18 00:24:20 | playbr2 | 28 Z2 u$ w1 I0 x
2008-01-18 00:22:02 | 但丁 | 2) q5 ~8 s6 h" K" }0 {% V
+ z7 |; Z/ |! J7 U6 v$ E6 O
點解大家都down兩次? XD

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8 F$ Q" u, L) Y' w0 M& I我第一次開睇左2秒就close 左
' ]" Z. @' v! A之後DL (就变成第二次)

playbr2

Originally posted by sakura310 at  12:27 AM:7 E  o" x% W6 ?  ]7 Y8 X/ f6 b
Filename: DSC01158.JPG
! ^) u# V$ x, B3 m+ d1 v- fDatetime | Downloaded by | Counts
6 p4 p' b% f3 O: o( u2008-01-18 00:25:24 | 阿感 | 2
1 P! g- T( z: W) ~) f' Q& Q3 U2008-01-18 00:24:20 | playbr2 | 21 \5 Y; M0 D- F3 t! M+ _
2008-01-18 00:22:02 | 但丁 | 2
3 V1 T% q1 L+ i# [* o" W" ^% Z3 o$ a
點解大家都down兩次? XD

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快d捉我錯處' {- L7 K( d( |* C1 m
話吾定我都打錯 + - 符號! r: w, y) E* K" U5 R8 {: B1 ^  r
係電腦打答案...的確幾煩...又哂時間...

sakura310

捉錯處就唔敢當
; N. p; V0 H- ~4 l: {不過,c=101n哥度(解除n係正整數的限制,只是整數)+ t$ e0 r# J5 |( E1 l4 k
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~)
! I% p8 H8 m5 x0 J5 V知道{101,0,0}和{5151,2550,5050}係答案的話,當然沒問題
+ E1 G" U8 B0 B# Q7 ~3 \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
8 F" B+ h6 k1 R5 e4 t: Y5 M3 Q  _5 s, m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3 i/ p" |  @! T! p5 l
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:. E7 }+ Q9 g9 _3 u" t
冇答案ga....
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! q, x0 Y3 x5 n- l* V! p' y. o, U( D2條equation solve 唔到3個unknown ga....

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# q: ~3 I8 m3 f/ B, Kagree
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2 equations 2 unknows. V. \+ I( G) `+ ?- ?
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if 3 unknows there should be 3 equations
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6 U% M# G' S& @  y6 A0 ?make it simple 1 U- N7 i. o9 L% I' f" B0 z0 x
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say " s) ^. W$ p& W& g6 C! C6 O5 Y9 X
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a + b +c = 3; `, {$ K" d" g. b( _
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a+b = 24 i' A1 i$ j% B6 q! C2 m6 I
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then c is 1 3 O* O2 p0 c# [! D
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a = 2 - b ! y/ z' \8 j. ]: W/ _- j

: m: K8 z6 f$ Wso 0 = 0
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sakura310

Originally posted by cutec at 2008-1-18 08:26 AM:8 g- S. e+ ^' `5 E
冇答案ga....
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9 A3 {. Z9 b* R+ n1 B: k/ M2條equation solve 唔到3個unknown ga....

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# @' E& d1 L% q+ j( n4 J- E- V此言差矣~9 k, G( d  F/ n( G8 V, J

, K# U; t7 ~4 X% R2條equation solve 唔到3個unknown ga9 U, w1 K. h) e3 R( Z0 V( h4 F
還欠一個條件,就是3條equation都是linear independent(線性無關)的
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. g$ \6 Q) u" m( [4 Q. i. z5 p  p簡單點說,多元一次方程就是線性方程的一個例子9 u( u+ g' p9 {( B+ ^/ s
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, K/ n( h; k8 d8 j' c

7 H; [9 R) S$ f1 N, b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~)
/ D5 _2 S: G4 F# Z1 e例如 x^2-2(x+8y)+17+4y^2+z^0.5=0 就只有唯一整數解
# P2 o3 B: r: I1 a, X# l有興趣就解解看; w! S3 t* _' {
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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7 F5 w1 m% `' f/ b- q9 F# t# Z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:" L* Y, K5 h1 Z& S& V( |4 c5 A
捉錯處就唔敢當
# A. e8 q3 V- P) k9 [+ ]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! g* w2 M4 u3 w+ g0 ?, \
反而適當地調節一下 , 咁會理性好多
( v) I4 V& j/ l就好似隻game 由12粒珠 加到13粒珠咁- F6 R( M/ ~$ c' P; K( x
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:& l# o" D  j- Y' G- Y

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p.s. 求''堂''字正寫...

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已是正寫吧