Behind the flashing lights and free drinks, casinos are built on a bedrock of mathematics, engineered to slowly bleed patrons of their hard-earned cash. Despite this, for years, mathematically inclined minds have tried to turn the tables by using their knowledge of probability and game theory to exploit weaknesses in the rigged system.

Casinos are businesses, and like any other business they have a set of advantages that ensure they will win in the long run. These advantages are called the house edge and they vary by game. In addition, many casinos take a commission on the money players bet against each other, in games like poker and roulette.

The most obvious aspect of casino security is the use of cameras and other electronic surveillance devices. However, there are also less visible security measures. For example, the routines and patterns of different casino games follow certain patterns, and so if someone tries something that is out of the ordinary, it is easier for security personnel to spot.

In addition, most casinos have a rewards program where they give out complimentary goods and services to loyal customers. These programs can include free hotel rooms, meals and tickets to shows. Some casinos even offer limo service and airline tickets to big spenders. It is a good idea to ask a casino employee or someone at the information desk about these programs and how they work. Also, don’t forget to tip the dealers and other casino employees.