Kinetic ProgressBar in C#?

Question

C++ / C#

Good day!
I want to turn an ordinary (or third-party, similar to the usual) ProgressBar into a kinetic one. That is, not only was progress x, but it became x + n, but from x to x + (n / 2) progress would increase with acceleration a, and from x + (n / 2) to x + n - -a. You need an algorithm or library whose license terms allow its use in closed software. Now I am writing my bike, but perhaps this is not necessary.

Answer 1

Read some theory on this topic.
In my opinion, the animation implementation is very well described here: learn.javascript.ru/js-animation