Yes ,maybe maths can help but not all the time. Albert Einstein supposedly once said: 'No one can win at roulette unless he steals money from the table while the croupier isn't looking.' Although I wouldn't normally question Einstein, this statement isn't true.  In fact, you can use Einstein's specialist subject, physics, to help you win. Or you can find a biased wheel that makes some numbers more likely to come up.
What Einstein actually meant was that there is no mathematical trick that can help you win at roulette.