The sequence of instruction to plot the points with Matlab is very simple:

load d:\x.txt

load d:\y.txt

plot (x,y)

What we get is:

-Koch's curve after one iteration- -Koch's
curve after two iteration- -Koch's curve after three iteration-

-Koch's curve after four iteration-
-Koch's curve after six iteration- -Koch's curve after seven iteration-

You can see that the last two pictures
make no difference. At this scale, we can't observe it.

Click here for a zoom on the 8
iterations Koch's snowflake:
**ZooM**

And of course, we can animate those
picture so as to have a look at the evolution in one single glance.