This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionPhase space of the standard map with variation of parameters.ogv
English: Each frame of this movie was created by iterating 500 times 1000 random initial conditions on the phase-space. The 520 frames, representing k from 0 to 5.19 were joined to produce this movie, on a 0.1 seconds/frame. Python was used to produce the data, and xmgrace to produce each frame (jointly with a python script to produce the 520 frames).
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.