魔方吧·中文魔方俱乐部

 找回密码
 注册
搜索
热搜: 魔方
楼主: R'cube
打印 上一主题 下一主题

石头剪子布概率题(大家探讨一下) [复制链接]

Rank: 4

积分
1194
帖子
924
精华
6
UID
44804
性别
保密
21#
发表于 2009-1-30 19:45:12 |只看该作者
采用科学计数法,再计算,得到
K(n) 的前75项,如下:
1,1,3,12,55,273,1428,7752,43263,246675,1430715,8414640,50067108,300830572,1822766520,
11124755664,68328754959,422030545335,2619631042665,16332922290300,102240109897695,642312451217746,
4.04851484403913E+15,2.55944037411317E+16,1.62250238001817E+17,1.03114798315979E+18,
6.56851741377105E+18,4.19323535909429E+19,2.68225186597701E+20,1.71892996554286E+21,1.10349667951898E+22,
7.09560230486396E+22,4.56949965738719E+23,2.94692427022542E+24,1.90306490596398E+25,1.23052100237543E+26,
7.96607831560622E+26,5.16287994616852E+27,3.34969627129403E+28,2.17550867863013E+29,1.41428207709834E+30,
9.20260006852421E+30,5.99328996059367E+31,3.90645234961543E+32,2.54827184042207E+33,1.66356412967036E+34,
1.08679967966405E+35,7.10496811856533E+35,4.64798590900734E+36,3.04260549454807E+37,1.99293672373586E+38,
1.30616458261516E+39,8.56542543599596E+39,5.62001260885169E+40,3.68938646289547E+41,2.42321078442568E+42,
1.59235736486673E+43,1.04687476184488E+44,6.88567758918112E+44,4.53095434582224E+45,2.98275345798751E+46,
1.96437153964454E+47,1.29420401050643E+48,8.53000303587626E+48,5.62416079527545E+49,3.70956832348855E+50,
2.447605128273E+51,1.61550056559312E+52,1.0666361559582E+53,7.04473645075351E+53,4.6542368235129E+54,
3.07583947979984E+55,2.0333243457699E+56,1.3445406975258E+57,8.89328433435087E+57,5.88393826582104E+58,
得出前n项的和,如下:
.5625,.5859375,.59765625,.6043701171875,.608535766601563,.611259460449219,.613107681274414,.614397019147873,
.615315955132246,.615982183720917,.616471980232745,.616836266388418,.617109870199783,.617317094761347,
.61747518704783,.617596563299029,.617690272904735,.617762982272224,.617819648479681,.617863988059387,
.617898807887139,.617926241690821,.617947920994055,.617965099906216,.617978747036142,.617989613736658,
.61799828514414,.618005218602707,.61801077276498,.618015229752574,.618018812116259,.618021695875968,
.618024020589315,.618025897156196,.618027413890433,.618028641259134,.618029635593643,.618030442003687,
.618031096672017,.618031628665806,.618032061369982,.618032413623906,.618032700624698,.618032934646507,
.618033125614304,.61803328156241,.618033409001525,.618033513212974,.618033598484942,.618033668302421,
.618033725500122,.618033772385737,.618033810839424,.618033842394182,.618033868300871,.618033889580854,
.618033907068666,.618033921446632,.618033933272974,.618033943004662,.618033951015988,.618033957613703,
.618033963049335,.618033967529237,.618033971222789,.618033974269086,.618033976782407,.618033978856686,
.618033980569167,.618033981983395,.618033983151668,.618033984117047,.618033984914996,.618033985574736,
.618033986120355,
从以上看出第一题概率基本上略大于0.61803398
而黄金分割点的值为0.6180339887.
两者惊人的相等。可以想象,第一题概率将会等于黄金分割值,(根号5-1)/2。
天哪,真的等于黄金分割值???

使用道具 举报

红魔

沉沦一生

Rank: 4

积分
2607
帖子
2298
精华
3
UID
34403
性别

六年元老

22#
发表于 2009-1-30 19:48:51 |只看该作者

回复 21# 的帖子

对的对的。。。。我没把那个算进去。。。那个也是要分情况的。。。。
多谢指出错误~~~
I'm sure you'll do what you have to!

使用道具 举报

红魔

沉沦一生

Rank: 4

积分
2607
帖子
2298
精华
3
UID
34403
性别

六年元老

23#
发表于 2009-1-30 19:50:17 |只看该作者
恩。。。。和黄金分割非常接近哦。。。。支持了~~~~
I'm sure you'll do what you have to!

使用道具 举报

Rank: 4

积分
1194
帖子
924
精华
6
UID
44804
性别
保密
24#
发表于 2009-1-30 19:52:39 |只看该作者
计算到前146项的和为  0.618033988749888
                黄金分割值  0.61803398874989484820458
大家还有理由不相信,其概率就是黄金分割值嘛。

使用道具 举报

红魔

沉沦一生

Rank: 4

积分
2607
帖子
2298
精华
3
UID
34403
性别

六年元老

25#
发表于 2009-1-30 19:55:15 |只看该作者
LS花了不少功夫吧。。。。非常好的解答~~~~
I'm sure you'll do what you have to!

使用道具 举报

Rank: 4

积分
1194
帖子
924
精华
6
UID
44804
性别
保密
26#
发表于 2009-1-30 20:15:19 |只看该作者
计算第二题:
     计算到前146项的和为  0.366025403784439。其实从前41项和开始就是这个值。
以下是前n项的和:
.358024691358025,.363511659807956,.365137428237565,.365689386655025,.365892328941849,
.365970961850704,.3660025814331,.36601565292713,.366021173701087,.366023545589158,
.366024578928185,.366025034362794,.366025237066516,.366025328044651,.366025369175029,
.366025387887966,.36602539644944,.366025400385947,.366025402203977,.366025403046972,
.36602540343927,.36602540362243,.366025403708202,.366025403748479,.36602540376744,
.366025403776387,.366025403780617,.366025403782622,.366025403783574,.366025403784026,
.366025403784242,.366025403784344,.366025403784394,.366025403784417,.366025403784428,
.366025403784434,.366025403784436,.366025403784438,.366025403784438,.366025403784438,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,
.366025403784439,.366025403784439,.366025403784439,.366025403784439,.366025403784439,

使用道具 举报

Rank: 4

积分
1056
帖子
1043
精华
0
UID
39508
性别
保密
27#
发表于 2009-1-30 21:06:25 |只看该作者
咋有讨论起了猜拳呀?

使用道具 举报

Rank: 4

积分
1056
帖子
1043
精华
0
UID
39508
性别
保密
28#
发表于 2009-1-30 21:08:14 |只看该作者
26楼的真强呀!!!!!!!!!!!!!!!

使用道具 举报

红魔

苦练金字塔

Rank: 4

积分
1201
帖子
1104
精华
0
UID
70172
性别
保密
29#
发表于 2009-1-30 21:16:18 |只看该作者
好复杂的
不能简单计算~以前做过相似的题目

按研究 布赢的概率最大
shop36189014.taobao.com魔方全新优惠

广科魔协会长~咔咔

使用道具 举报

Rank: 4

积分
1194
帖子
924
精华
6
UID
44804
性别
保密
30#
发表于 2009-1-30 21:25:23 |只看该作者
计算第三题:
     计算到前82项的和为  0.371739349306871。其实从前81项和开始就是这个值。
以下是前n项的和:
.358024691358025,.365340649291267,.36832122474555,.369726209808176,.370550616387251,
.371024891768179,.371301685480954,.371465991166701,.371565035876945,.371625539521027,
.371662922601327,.371689016362259,.37170624122691,.371717477860945,.371724790677537,
.371729553316717,.371732661032967,.371734693696481,.371736177117858,.37173719663517,
.371737886341045,.371738350188234,.371738661406999,.371738870058809,.371739009949753,
.371739114144862,.371739187148522,.371739237434774,.371739271828884,.37173929527238,
.371739311223374,.371739322066693,.371739330238189,.371739336028496,.3717393400602,
.371739342846203,.371739344763811,.371739346080727,.371739346983897,.371739347669709,
.371739348159291,.371739348502633,.371739348741534,.371739348907066,.371739349021472,
.371739349100417,.371739349160683,.371739349203931,.371739349234417,.371739349255734,
.371739349270576,.371739349280882,.371739349288025,.3717393492935,.371739349297445,
.371739349300235,.371739349302194,.371739349303563,.371739349304517,.371739349305181,
.371739349305641,.371739349305995,.371739349306251,.371739349306432,.37173934930656,
.371739349306649,.371739349306712,.371739349306755,.371739349306789,.371739349306813,
.37173934930683,.371739349306843,.371739349306851,.371739349306857,.371739349306861,
.371739349306865,.371739349306867,.371739349306869,.37173934930687,.371739349306871,
.371739349306871,
-----------------
第三题的概率为  0.371739349306871。

第三题的概率应该比第二题小,我来看看那里出了问题

[ 本帖最后由 lulijie 于 2009-1-30 21:28 编辑 ]

使用道具 举报

您需要登录后才可以回帖 登录 | 注册

Archiver|手机版|魔方吧·中文魔方俱乐部

GMT+8, 2024-12-3 01:02

Powered by Discuz! X2

© 2001-2011 Comsenz Inc.

回顶部