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flow(6x)							XScreenSaver manual							  flow(6x)

flow - strange attractors. SYNOPSIS
flow [-display host:display.screen] [-visual visual] [-window] [-root] [-count number] [-cycles number] [-periodic|-no-periodic] [-search|-no-search] [-rotate|-no-rotate] [-ride|-no-ride] [-box|-no-box] [-dbuf|-no-dbuf] [-ncolors number] [-delay number] [-fps] DESCRIPTION
Strange attractors formed of flows in a 3D differential equation phase space. Features the popular attractors described by Lorentz, Roessler, Birkhoff and Duffing, and can discover entirely new attractors by itself. OPTIONS
-visual visual Specify which visual to use. Legal values are the name of a visual class, or the id number (decimal or hex) of a specific visual. -window Draw on a newly-created window. This is the default. -root Draw on the root window. -count number Number of particles in the flow. Default: 3000 -size number Length of particle trails. Negative values indicate randomness. The computational load of a given flow depends on (particle count) * (trail length). Default: -10 -cycles number Timeout before changing objects. 0 - 800000. Default: 10000. -periodic -no-periodic turn on/off periodic attractors. These are flows in 2 dependent variables, with a periodic dependence on a third independent vari- able (eg time). Flow will sometimes choose to start all the particles in the same phase to illustrate the flow's cross-section. Default: on -search -no-search turn on/off search for new attractors. If this is enabled, a fraction of the computing cycles is directed to searching a 60-dimen- sional parameter space for new strange attractors. If periodic flows are enabled, these can be searched too. Watch carefully - you are quite likely to see mathematical objects that have never been seen before, and since the parameters are not recorded, you'll probably never see them again! Default: on -rotate -no-rotate turn on/off rotating around attractor. Default: on -ride -no-ride turn on/off ride in the flow. Default: on If both -rotate and -ride are enabled the viewpoint will occasionally fly between the two views. -box -no-box turn on/off bounding box. Default: on -dbuf -no-dbuf turn on/off double buffering. If Flow runs slowly in full screen, but fast in a smaller window (eg on old graphics cards with too little memory), try turning this option off. Default: on -ncolors number Number of Colors. Default: 200. -delay number Per-frame delay, in microseconds. Default: 10000 (0.01 seconds.). -fps Display the current frame rate and CPU load. ENVIRONMENT
DISPLAY to get the default host and display number. XENVIRONMENT to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property. SEE ALSO
X(1), xscreensaver(1) COPYRIGHT
Copyright (c) 1996 by Tim Auckland <> Incorporating some code from Stephen Davies Copyright (c) 2000 Search code based on techniques described in "Strange Attractors: Creating Patterns in Chaos" by Julien C. Sprott Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, pro- vided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in sup- porting documentation. This file is provided AS IS with no warranties of any kind. The author shall have no liability with respect to the infringement of copy- rights, trade secrets or any patents by this file or any part thereof. In no event will the author be liable for any lost revenue or prof- its or other special, indirect and consequential damages. Adapted from swarm.c Copyright (c) 1991 by Patrick J. Naughton. Adapted from xswarm by Jeff Butterworth. ( AUTHOR
Tim Auckland X Version 11 5.15 (28-Sep-2011) flow(6x)

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