Floating average filter10.may 2011
Here is a demonstration of
very simple filter. I don't know what is the correct
name of this equation, but I call it "floating average".
It does not need any array of last N values, it simply
averages the old value with the new value in every
iteration. This example is using two filters - one
for the X coordinate of the red dot and the second
for the Y coordinate.

