**Martingale** — Mar tin*gale, Martingal Mar tin*gal, n. [F. martingale; cf. It. martingala a sort of hose, martingale, Sp. martingala a greave, cuish, martingale, Sp. alm[ a]rtaga a kind of bridle.] 1. A strap fastened to a horse s girth, passing between his… … The Collaborative International Dictionary of English

**Martingale (betting system)** — For the generalised mathematical concept, see martingale (probability theory). Originally, martingale referred to a class of betting strategies popular in 18th century France. The simplest of these strategies was designed for a game in which the… … Wikipedia

**Martingale (probability theory)** — For the martingale betting strategy , see martingale (betting system). Stopped Brownian motion is an example of a martingale. It can be used to model an even coin toss betting game with the possibility of bankruptcy. In probability theory, a… … Wikipedia

**Martingale representation theorem** — In probability theory, the martingale representation theorem states that a random variable which is measurable with respect to the filtration generated by a Brownian motion can be written in terms of an Itô integral with respect to this Brownian… … Wikipedia

**Betting strategy** — A betting strategy or betting system is a structured approach to gambling, with a predefined set of actions for bet sizing and timing. Betting strategies are typical in any activity in which money is risked but where the participant has little… … Wikipedia

**Martingal** — Martingale Mar tin*gale, Martingal Mar tin*gal, n. [F. martingale; cf. It. martingala a sort of hose, martingale, Sp. martingala a greave, cuish, martingale, Sp. alm[ a]rtaga a kind of bridle.] 1. A strap fastened to a horse s girth, passing… … The Collaborative International Dictionary of English

**Constant Proportion Debt Obligation** — A Constant Proportion Debt Obligation (or CPDO) is a type of credit derivative sold to investors looking for long term exposure to credit risk on a highly rated note. They employ dynamic leveraging in a similar (but opposite) way to Credit CPPI… … Wikipedia

**Algorithmically random sequence** — Intuitively, an algorithmically random sequence (or random sequence) is an infinite sequence of binary digits that appears random to any algorithm. The definition applies equally well to sequences on any finite set of characters. Random sequences … Wikipedia

**Roulette** — For other uses, see Roulette (disambiguation). Spinning Roulette wheel with ball … Wikipedia

**probability theory** — Math., Statistics. the theory of analyzing and making statements concerning the probability of the occurrence of uncertain events. Cf. probability (def. 4). [1830 40] * * * Branch of mathematics that deals with analysis of random events.… … Universalium