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.
Tesseract vertex boundary of two nodes.svg en The vertex boundary blue of two nodes red in tesseract fourdimensional hypercube own Itai Based on File Hypercubestar svg Tesseract Petrie polygon
Page 2023 Free-images.com. All images are Public Domain