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Re: the fastest way to find number of points in sphere(radius r) [message #46409 is a reply to message #46407]

Tue, 22 November 2005 06:00

btt
Messages: 345
Registered: December 2000

Senior Member

PYJ wrote:
> Data-------------------------------------------------------- ---------------
> lots of points: X, Y, Z
> lots of spheres: XC, YC, ZC (positions of center), R(radius)
> ------------------------------------------------------------ ------------------
>
> I want to know the number of galaxies inside each sphere without a
> loop.(If it is possible)
> The faster, the better!
>
> Help me, experts~~!!!
>

Hi,

I'm not sure if this is a similar problem, but it might be worth looking
at this thread...

http://tinyurl.com/92g73

Cheers,
Ben

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[Message index]

		Re: the fastest way to find number of points in sphere(radius r) By: Xavier Llobet on Tue, 22 November 2005 11:16
		Re: the fastest way to find number of points in sphere(radius r) By: MarioIncandenza on Tue, 22 November 2005 10:18
		Re: the fastest way to find number of points in sphere(radius r) By: Haje Korth on Tue, 22 November 2005 08:53
		Re: the fastest way to find number of points in sphere(radius r) By: Xavier Llobet on Tue, 22 November 2005 08:01
		Re: the fastest way to find number of points in sphere(radius r) By: Xavier Llobet on Tue, 22 November 2005 07:29
		Re: the fastest way to find number of points in sphere(radius r) By: btt on Tue, 22 November 2005 06:00
		Re: the fastest way to find number of points in sphere(radius r) By: snfinder@naver.com on Tue, 22 November 2005 05:14
		Re: the fastest way to find number of points in sphere(radius r) By: Xavier Llobet on Tue, 22 November 2005 04:16
		Re: the fastest way to find number of points in sphere(radius r) By: Xavier Llobet on Tue, 22 November 2005 04:02
		Re: the fastest way to find number of points in sphere(radius r) By: snfinder@naver.com on Tue, 22 November 2005 03:33
		Re: the fastest way to find number of points in sphere(radius r) By: Peter Clinch on Tue, 22 November 2005 01:13
		Re: the fastest way to find number of points in sphere(radius r) By: snfinder@naver.com on Tue, 22 November 2005 01:06
		Re: the fastest way to find number of points in sphere(radius r) By: Peter Clinch on Tue, 22 November 2005 00:31
		Re: the fastest way to find number of points in sphere(radius r) By: snfinder@naver.com on Tue, 22 November 2005 22:23

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