![Illustration of the cross-ratio invariance. The ratio of the distance... | Download Scientific Diagram Illustration of the cross-ratio invariance. The ratio of the distance... | Download Scientific Diagram](https://www.researchgate.net/publication/27464980/figure/fig3/AS:310108996292614@1450947154213/Illustration-of-the-cross-ratio-invariance-The-ratio-of-the-distance-between-four.png)
Illustration of the cross-ratio invariance. The ratio of the distance... | Download Scientific Diagram
![Projective invariance of cross-ratio: (a, b : c, d) = (a 1 , b 1 : c 1... | Download Scientific Diagram Projective invariance of cross-ratio: (a, b : c, d) = (a 1 , b 1 : c 1... | Download Scientific Diagram](https://www.researchgate.net/profile/Norman-Wildberger/publication/47865042/figure/fig3/AS:667607896186880@1536181534087/Projective-invariance-of-cross-ratio-a-b-c-d-a-1-b-1-c-1-d-1_Q320.jpg)
Projective invariance of cross-ratio: (a, b : c, d) = (a 1 , b 1 : c 1... | Download Scientific Diagram
![Illustration of the projective invariance of the cross-ratio τ. In this... | Download Scientific Diagram Illustration of the projective invariance of the cross-ratio τ. In this... | Download Scientific Diagram](https://www.researchgate.net/profile/Lode-Jorissen/publication/267269180/figure/fig5/AS:668511118557191@1536396879673/Illustration-of-the-projective-invariance-of-the-cross-ratio-t-In-this-example_Q320.jpg)
Illustration of the projective invariance of the cross-ratio τ. In this... | Download Scientific Diagram
![Although distances and ratios of distances are not, the cross ratio, defined as AC/BC · BD/AD, is preserved under projection Stock Photo - Alamy Although distances and ratios of distances are not, the cross ratio, defined as AC/BC · BD/AD, is preserved under projection Stock Photo - Alamy](https://c8.alamy.com/comp/BBJ865/although-distances-and-ratios-of-distances-are-not-the-cross-ratio-BBJ865.jpg)