Mathematics and art while the De Stijl movement led by Theo van Doesburg and Piet Mondrian explicitly embraced geometrical forms. Mathematics has inspired textile arts such as quilting, knitting, cross-stitch, crochet, embroidery, weaving, Turkish and other carpet-making, as well as kilim. In Islamic art, symmetries are evident in forms as varied as Persian girih and Moroccan zellige tilework, Mughal jali pierced stone screens, and widespread muqarnas vaulting. Mathematics has directly influenced art with conceptual tools such as linear perspective, the analysis of symmetry, and mathematical objects such as polyhedra and the Möbius strip. Magnus Wenninger creates colourful stellated polyhedra, originally as models for
Theo van Gogh (art dealer) letters Vincent wrote during his life were to Theo, including his first and his last letters. It is largely thanks to Theo and his wife that these letters are available today. Hardly any of Theo's letters remain because Vincent failed to keep them. The letters have been collected and published in book form as "The Letters of Vincent van Gogh". The relationship between the two brothers was the subject of the movie "Vincent & Theo" (1990), directed by Robert Altman. It also formed an important part of the film "Lust for Life" (1956), which was directed by Vincente Minnelli. Theo