This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Tutte cube.svg Tutte embedding of the graph of cube The outer four vertices are fixed at the corners of unit square and each remaining vertex is at the average of its neighbors' positions own David Eppstein cczero Uploaded with Undirected planar graphs
Page 2023 Free-images.com. All images are Public Domain