If Becoming can be expressed in math or not is not my concern in this post. Possibly you are right, it can. But as you mentioned math a lot, my understanding is that the math is the science of Quality expressed in Quantity. it is like "digital", not "analogue" in a way - possibly not very clear to you but this is the best i can express my self. As to if math has Becoming in it, it is a good topic. Possibly Hegel already talked about it, just i am ignorant of this part.

Hope this helps