What Are The Different Parameters In Jquery's Easing Functions

I see jQuery's easing functions at https://github.com/danro/jquery-easing/blob/master/jquery.easing.js. I see each function takes 5 paramaters but I can't figure out what all of th

Solution 1:

x is an extra parameter not needed for the equations, but necessary for compatibility with jQuery

Reference : link

So x is equal to null and t is expressed in milliseconds since the start of the animation

I think you have right for the others.

You can see this post for more comprehension