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Topic: Random Triangle Problem
Replies: 57   Last Post: Aug 17, 1997 10:51 PM

 Messages: [ Previous | Next ]
 Charles H. Giffen Posts: 796 Registered: 12/8/04
Re: Random Triangle Problem
Posted: Aug 5, 1997 12:40 PM

Robert Hill wrote:
>
> In article <1997Aug4.123104.12262@leeds.ac.uk>, I wrote:
>

> > My program for a circle contained a stupid error. [...]
> > Correcting the bug, I get 720578 obtuse out of a million,
> > or 7200949 out of 10 million, reasonably close both to your figures
> > and to the theoretical .7187 that has now been posted by Keith Ramsay.

>
> ... though still not as close as they should have been; but this may be
> because the figure of .7187 itself contains a misprint of 8 for 9
> (since 9/8 - 4/pi^2 = 0.71971526543...).
>
> --
> Robert Hill
>
> University Computing Service, Leeds University, England
>
> "Though all my wares be trash, the heart is true."
> - John Dowland, Fine Knacks for Ladies (1600)

And these compare favorably with the value 7196418 out of ten million
that I posted earlier.

And I spent the entire weekend working on the exact value for a circle,
expecting to finish up on Monday, when I saw the answer 9/8 - 4/pi^2
posted (and it is indeed the value which I subsequently found!).

But all that grundge and grind pales in comparision with the beautiful
result of precisely 3/4 for normally distributed vertices. It will
become one of my "hard" probablility problems the next time I teach
post-calculus probability (most likely next summer).

Date Subject Author
7/16/97 Mike Housky
7/21/97 Bill Taylor
7/22/97 tony richards
7/24/97 Brian M. Scott
7/23/97 tony richards
7/23/97 T. Sheridan
7/24/97 Bill Taylor
7/24/97 Bill Taylor
7/25/97 Ilias Kastanas
7/23/97 Robert Hill
7/23/97 tony richards
7/27/97 Bill Taylor
7/24/97 Robert Hill
7/28/97 tony richards
7/30/97 Bill Taylor
7/30/97 tony richards
8/1/97 Bill Taylor
7/24/97 Robert Hill
7/24/97 Robert Hill
7/24/97 Robert Hill
7/25/97 Robert Hill
7/30/97 Bill Taylor
8/1/97 Charles H. Giffen
8/1/97 John Rickard
8/1/97 Chris Thompson
8/1/97 John Rickard
8/4/97 Bill Taylor
8/5/97 John Rickard
7/25/97 Charles H. Giffen
7/25/97 Charles H. Giffen
7/28/97 Hauke Reddmann
7/28/97 Robert Hill
7/28/97 Robert Hill
7/28/97 Robert Hill
7/29/97 tony richards
7/30/97 Keith Ramsay
7/30/97 tony richards
8/2/97 Keith Ramsay
7/29/97 tony richards
8/4/97 Bill Taylor
8/5/97 Charles H. Giffen
8/6/97 Terry Moore
8/7/97 Terry Moore
8/16/97 Kevin Brown
8/17/97 Kevin Brown
7/30/97 Robert Hill
7/31/97 tony richards
8/6/97 Terry Moore
7/31/97 John Rickard
7/30/97 Robert Hill
7/31/97 Robert Hill
7/31/97 Robert Hill
8/1/97 R J Morris
8/4/97 Robert Hill
8/4/97 Robert Hill
8/5/97 Charles H. Giffen
8/6/97 Robert Hill