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
DescriptionCayley-Salmon configuration g012.png
English: Figure 12. An illustration of the structure of the (154,203)-configuration, built around the model of the Desargues configuration shown in Figure 6 (an illustrative portrayal of the Desargues configuration). The five points added to the Desargues configuration are the three peripheral points and the red and blue point in the center. The 10 lines added are three lines denoted by red color, three blue lines, three lines joining pairwise the three peripheral points and the line that comprises the three points in the center of the figure, that is the ones represented by a bigger red circle, a smaller blue circle and a medium-sized black one.
This math image could be re-created using vector graphics as an SVG file. This has several advantages; see Commons:Media for cleanup for more information. If an SVG form of this image is available, please upload it and afterwards replace this template with {{vector version available|new image name}}. It is recommended to name the SVG file “Cayley-Salmon configuration g012.svg”—then the template Vector version available (or Vva) does not need the new image name parameter.
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.
Uploaded a work by Metod Saniga; Frédéric Holweck; Petr Pracna from Saniga, Metod; Holweck, Frédéric; Pracna, Petr (2015). "[https://doi.org/10.3390%2Fmath3041192 From Cayley-Dickson Algebras to Combinatorial Grassmannians]". ''Mathematics'' 3(4). MDPI AG: 1192–1221. DOI: [https://doi.org/10.3390%2Fmath3041192 10.3390/math3041192]. with UploadWizard