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In Lisbon, in the APM head-office (Association of Professors in Mathematics), a paving wit...
In Lisbon, in the altar of the church S. Roque this decoration in azulejos gives an exampl...
In rua de S, José, in Lisbon, this pavement has symmetry 442 (if we ignore the colouring)...
Every quadrilateral tessellates the plane. By grouping the four coloured triangles that co...
You can tessellate the plane using as tiles a square and an equilateral triangle of equal ...
You can tessellate the plane using a square and an equilateral triangle of equal sides as ...
The pentagon shown in the figure is an example of polygon with Heesch number 1: we can dra...
Can we tessellate the plane with this hexagon? We can do that because the opposite sides o...
The angle of the regular pentagon doesn’t divide 360°: you can’t tessellate the plane...
You can tessellate the plane using as tiles a square and an equilateral triangle of equal ...
other tessellations