Facts on file encyclopedia of mathematics

... innovative and contain original results exploring issues of curvature, the construction of normal lines, and the construction of companion curves to conics Apollonius also applied the theory of conics... dictionnaire raisonné des sciences, des arts, et des métiers (Encyclopedia and dictionary of the rationales of the sciences, arts, and professions), taking responsibility for the writing of the... equations In mechanics, he is honored with a principle of motion named after him, a generalization of Sir Isaac Newton’s third law of motion See also DIFFERENTIAL CALCULUS algebra The branch of mathematics