PS. Downvoting my comment is a sign of fear and cowardice.
Edit: I forgot to laugh. hahahaha...HAHAHAHA...hahahaha
Edit: I forgot to laugh. hahahaha...HAHAHAHA...hahahaha
I don't believe person who did this was motivated by cowardice. More likely annoyance or exhaustion. Or just wanted to express that he thinks you are wrong but wouldn't bother with writing a comment.
Let's stick to math and physics though.
To understand it you'll need to have ability to calculate derivatives and integrals.