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xstar

Program that simulates the movement of stars

XStar is a Unix program that simulates the movement of stars. It starts by putting a bunch of stars on the screen, and then it lets the inter-body gravitational forces move the stars around. The result is a lot of neat wandering paths, as the stars interact and collide.

Along with the program, there is a fairly large document that explains the N-Body problem in a fair amount of detail. It doesn't get into the gory details of the "real" N-body solvers, but it does give you an overview of the techniques they use.

Homepage:
Package version:2.2.0
Architecture:i686
Distribution:Fedora
Filename:xstar-2.2.0-7.fc17.i686.rpm

/usr/share/doc/xstar-2.2.0/README

XStar by Wayne Schlitt, wayne@midwestcs.com


This program "solves" the n-body problem, and displays the results on
the screen.  It starts by putting a bunch of stars on the screen, and
then it lets the inter-body gravitational forces move the stars
around.  The result is a lot of neat wandering paths, as the stars
interact and collide.

XStar can be used to animate the root window, as a screen sa
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/usr/share/doc/xstar-2.2.0/README.xgrav

XGrav by DWF, dave@case50.ncsl.nist.gov
Version 1.0.1, 1/20/95

This program is a hack of XSwarm 2.3 by Jeff Butterworth.  I know nothing
about X programming, so I modified a program that was pretty close to what I
wanted.

Instead of a swarm of bees, this program now shows the gravitational
interaction between a number of "stars."  The trails are left on purpose
since I think it's more interestin
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/usr/share/man/man1/xstar.1x.gz

XSTAR(6)                                                    XSTAR(6)



NAME
       XStar Version 2.2 - X11 animated n-body solver

SYNOPSIS
       xstar [-hrRMv] [-b stars] [-g geometry] [-d host:display] [-t
       timeout] [-D  delay]  [-B  buf_factor]  [-c  star_color]  [-C
       bg_color]  [-a  float] [-m [taylor3|rk4|gpemce8|ab7|am7]] [-l
       float] [-T num_pts]


DESCRIPTION
       XSta
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/usr/share/doc/xstar-2.2.0/COPYING

		    GNU GENERAL PUBLIC LICENSE
		       Version 2, June 1991

 Copyright (C) 1989, 1991 Free Softw
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