A web diagram, also called a cobweb plot, is a graph that can be used to visualize successive iterations of a function 
. In particular, the segments of the diagram connect the
points 
,
, 
, .... The diagram is so-named because its
straight line segments "anchored" to the functions 
and 
can resemble a spider web. The animation above shows
a web diagram for the logistic map 
with 
.
