Yvaral, also known as Jean-Pierre Vasarely, was a French artist born into the Op Art movement, hooked onto the idea of geometry in the artistic process. Rooted in mathematical ideas, Yvaral’s work carried a magnificent outwardly quality. Working in a vein reminiscent of American painter Bridget Riley, Yvaral coined the term “numerical art” to describe art created by algorithmic means. His work was always painted by hand, although he digitally manipulated and processed the source imagery before creating the final piece, sometimes starting with a photograph and transforming it into colorful geometric compositions.