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  • 學位論文

一些幾何上的機率問題

Some Probability Problems in Geometry

指導教授 : 吳裕振
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摘要


本論文主要對幾何機率問題做一些研究,在讀大學時微分幾何一書中(Do CaRMO, M.P., 1976)的習題中,有一個幾何機率問題;單位圓內隨機取針的問題,一直感到非常有興趣,因為此「隨機」的取法不同,可能會得到不同的答案,某些專家學者也有做出解釋,此外,我們也對三角隨機變數的機率密度函數進行了研究和討論。最後,我們也搜集了「布豐投針」詳細之研究,把它推廣到更一般的情況,藉由以上數種幾何機率密度函數的研究,我們發覺到一些有趣的現象。

並列摘要


This paper mainly studies some geometric probability problems. I have been interested in the problem of randomly taking needles in the unit circle in the Differential geometry book(Do CaRMO, M.P., 1976)since I studied in university because different "random" approaches may lead to different answers. Some experts and scholars have explained it . What’s more,we study and discuss the probability density function of triangular random variables. Finally, we study “Buffon's Needle” and promote it to a more general situation. Through the study of several geometric probability density functions, we have found some interesting phenomena.

參考文獻


[1 ] Do Carmo,M.P (1976) Differential Geometry of curves and surfaces
1st Ed ,Prentice-Hal.
[2 ] 黃文璋(2003)隨機思考論 華泰書局
[3 ] 維基百科-布豐投針
https://en.wikipedia.org/wiki/Buffon%27s_needle_problem

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