Discrete geometry is a mathematical study that deals with the properties of geometric objects that have finitely many points. This field of study is also known as combinatorial geometry, computational geometry, and digital geometry. Combinatorial geometry studies the combinatorial properties of geometric objects, while computational geometry deals with the algorithms and data structures used for geometric computations on digital computers. Digital geometry, on the other hand, is the study of geometric structures in discrete spaces such as images and grids. The use of the word "discrete" emphasizes that the objects studied have a finite number of points and that the study is concerned with these finite structures.