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.
HyperboloidProjection. en Projective relation of hyperboloid and Poincare models own Selfstudier DrTrigonBot talk FileContentsByBot FileContentsByBot PMS TPX Bright White Pantone FileContentsByBot PMS TPX Star White Pantone FileContentsByBot image RGB FileContentsByBot Polybytes PolyImagePro
Page 2023 Free-images.com. All images are Public Domain