A lattice is a setgroup of points in same location. It includes unlimited math lessons on number counting addition subtraction etc. It has no size only position.
Sometimes written as the letter O In three dimensions it is the point 0 0 0 where the x y and z axis cross.
Lattice point A point in the coordinate plane or in space with integer coordinates. In mathematics a limit point of a set S in a topological space X is a point x which is in X but not necessarily in S that can be approximated by points of S in the sense that every neighbourhood of x with respect to the topology on X also contains a point of S other than x itself. In this sense interior and closure are dual notions. Preimage point A point to which a transformation has been applied.