Mathematics and art through the strings as with a bird cage and to see one form within another which excited me." The artists Theo van Doesburg and Piet Mondrian founded the De Stijl movement, which they wanted to "establish a visual vocabulary elementary geometrical forms comprehensible by all and adaptable to any discipline". Many of their artworks visibly consist of ruled squares and triangles, sometimes also with circles. De Stijl artists worked in painting, furniture, interior design and architecture. After the breakup of De Stijl, Van Doesburg founded the Avant-garde Art Concret movement, describing his 1929–1930 "Arithmetic Composition", a series of four black
Jacob Jan van der Maaten of it on the wall. Vincent van Gogh referred in several letters to his brother Theo van Gogh to the work of Van der Maaten. The Rijksmuseum Amsterdam, Kröller-Müller Museum in Otterlo, Gemeentemuseum Den Haag, Groninger Museum, Museum Boijmans van Beuningen in Rotterdam, CODA Museum Apeldoorn and Museum Elburg have paintings of Van der Maaten. Jacob Jan van der Maaten Jacob Jan van der Maaten (Elburg, 4 January 1820 – Apeldoorn, 16 April 1879) was a Dutch painter and etcher. Van der Maaten was a pupil of Hendrikus van de Sande Bakhuyzen and studied at the Royal Academy of Art,