A limit point
P of a sequence of points
s is close to an infinite number of points of
s. An equivalent definition: no matter how small a distance ϵ is specified, there is a point
Q of
s (different from
P) within ϵ of
P. In symbols,

. Here the limit point is at the center and you control how close the graphical elements come to it. Elements closer to the center are drawn smaller.