Definitions for "D'Alenbert System"
Keywords:  win, roulette, bet, losing, won
A progressive betting system. Two numbers are cancelled every time a previous bet is won, and one number, the total of two end numbers, is added whenever a previous bet is lost.
A betting system that has the player increasing his wager by one unit with each loss, and reduce his wager by one unit with each win.
One of the many betting systems that have been used in roulette.