title: What is an easing function?
body: <p>What is meant by easing function in the context of animation. It seems that dojo, jquery, silverlight, flex and other UI systems have the notion of easing function. I could not locate a good explanation of easing functions? Can anyone explain the concept of easing functions, or point a good explanation of them, I am interested in the concept not in the specific details of a framework? </p>
  
  <p>Is easing strictly used for location or is it general and can be applied to any property of an object?  </p>