This topic has nothing whatsoever to do with calculus. If you meant 'math class', say 'math class'.

While I'm at it, the distribution of particles in a gas has nothing whatsoever to do with the many-worlds interpretation of quantum mechanics, nor in fact with quantum mechanics itself. The old trope of all the gas suddenly coalescing on the left-hand side of the box is a *statistical* phenomenon, not a quantum one.