ABSTRACT: For a simple undirected graph G, let A( G ) be the (0, 1) adjacency matrix of G. The Seidel matrix of G, is defined as S( G )=J−I−2A( G ) , where J is the all-one matrix and I is the ...

As for the missing reflection, it was not an artistic choice, as some art historians had proposed, but a matter of optics: from the artist's perspective, the row of houses blocked it. Reactions to ...

Mayan art and writing, it turned out, contained stories of battles, sacrificial offerings and torture. Far from being peaceful, the Maya were warriors, their kings vainglorious despots.

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A big commitment I needed to honor was to learn how to do fractal art. Building a fractal art tool without knowing what a fractal artist needs and feels while doing it is kind of meaningless. And thus ...

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