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For how many times do you go to MD forum each week?
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Total Votes : 16
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marco_dick
Frequent Visitor
Joined: 02 Nov 2003Posts: 164
Location: HKUST Maths
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Posted: Tue Aug 10, 2004 6:34 pm Post subject: 乘精佳搭–誠徵解答
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如何用四個4，配合加減乘除、括號、power(次方)、Factorial 、開方、來拼出一條表達式等於39及41（可使用44，當用兩個4）？_________________人生每一步，都影響著下一步，在佛家上，稱為「業」。這不是「因」，因為「因」是絕對的，即每做「因」，必有「果」。
以前我不明白，但見奧雲在皇馬越打越好，我明白了。祝奧雲平步青雲！
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Fed
Joined: 27 Mar 2004Posts: 12
Location: Txxxx Yx
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Posted: Tue Aug 17, 2004 4:56 pm Post subject:
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可唔可以用 .4? (4*4-.4)/.4=39 41 一樣咁計 .444444444444444444444… 又得唔得呢? 有 4/9 好計好多~
4+(4!+root .444444444444…)/root .4444444444444…=41
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Kenny TM~
Frequent VisitorJoined: 20 Jan 2004Posts: 141
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Posted: Tue Aug 17, 2004 9:12 pm Post subject:
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Fed wrote:
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| 可唔可以用 .4? (4*4-.4)/.4=39 41 一樣咁計 |
得~(卦) 4.4 我都用過 =.=
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Quote:
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| .444444444444444444444… 又得唔得呢? 有 4/9 好計好多~
4+(4!+root .444444444444…)/root .4444444444444…=41
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[/quote]
呢度已經有 countably infinite 咁多個 4 所以唔算。
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Fed
Joined: 27 Mar 2004Posts: 12
Location: Txxxx Yx
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Posted: Wed Aug 18, 2004 1:31 pm Post subject:
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.4 上面加一點之ma~
(係咪好奸呢~)
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marco_dick
Frequent Visitor
Joined: 02 Nov 2003Posts: 164
Location: HKUST Maths
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Posted: Wed Aug 18, 2004 1:36 pm Post subject:
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但我想個solution是可行的。我睇番規則，佢無話唔可以用.（包括小數點同循環小數點）。_________________人生每一步，都影響著下一步，在佛家上，稱為「業」。這不是「因」，因為「因」是絕對的，即每做「因」，必有「果」。
以前我不明白，但見奧雲在皇馬越打越好，我明白了。祝奧雲平步青雲！
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Fed
Joined: 27 Mar 2004Posts: 12
Location: Txxxx Yx
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Posted: Wed Aug 18, 2004 4:26 pm Post subject:
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用類似方法，應該好多數都出到
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marco_dick
Frequent Visitor
Joined: 02 Nov 2003Posts: 164
Location: HKUST Maths
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Posted: Thu Aug 19, 2004 10:24 am Post subject:
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你講得岩。我聽人講，話可以造出1~100出來。但我到而家都未諗到19點整。_________________人生每一步，都影響著下一步，在佛家上，稱為「業」。這不是「因」，因為「因」是絕對的，即每做「因」，必有「果」。
以前我不明白，但見奧雲在皇馬越打越好，我明白了。祝奧雲平步青雲！
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Fed
Joined: 27 Mar 2004Posts: 12
Location: Txxxx Yx
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Posted: Thu Aug 19, 2004 4:14 pm Post subject:
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4!-4/.444…+4_________________
人生若無難可解；必然也沒戲可唱
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Kenny TM~
Frequent VisitorJoined: 20 Jan 2004Posts: 141
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Posted: Thu Aug 19, 2004 8:36 pm Post subject:
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marco_dick wrote:
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| 你講得岩。我聽人講，話可以造出1~100出來。但我到而家都未諗到19點整。 |
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Copied from CLAMP, some here wrote:
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| 11 = 44 / sqrt(4*4) 12 = 4*(4 – 4/4) 13 = 44/4 + sqrt(4) 14 = 4 + 4 + 4 + sqrt(4) 15 = 4*4 – 4/4 16 = 4 + 4 + 4 + 4 17 = 4*4 + 4/4 18 = (4+4)*sqrt(4) – sqrt(4) 19 = 4!-4-4/4 20 = 4*(4+4/4) 21 = 4!-4+4/4 22 = 4*4+4+sqrt(4) 23 = 4! – 4/sqrt(4*4) 24 = 4+4+4*4 25 = (4+4/4)^sqrt(4) 26 = 4!+4!/4-4 27 = 4!+4-4/4 28 = 4(4+4)-4 29 = 4!+4+4/4 100 = 4! * 4 + sqrt(4*4) 98 = 4!*4-sqrt(4)+4 97 = 4!*4+4/4 96 = 4!*4+4-4 95 = 4!*4-4/4 94 = 4!*4+sqrt(4)-4
93 = (
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