Escher Illusions in LaTeX
A drawing in TikZ.
The first picture draws an impossible brick, which induces
an optical illusion similar to that triggered by Escher's
impossible cube.
The second picture draws a Penrose triangle, another similar
optical illusion.
Julien Cretel
Venn Diagrams in LaTeX
Venn Diagrams in LaTeX
Circular Keyboard
Circular Keyboard with Major Scales
Senan Sekhon