A curve on which points of a map 
(such as the Mandelbrot set)
diverge to a given value 
at the same rate. A common method of obtaining lemniscates
is to define an integer called the count
which is the largest 
such that 
where 
is usually taken as 
. Successive counts then define
a series of lemniscates, which are called equipotential
curves by Peitgen and Saupe (1988).
