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Math Help - martingale

  1. #1
    Junior Member elenaas's Avatar
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    martingale

    I could not understand an importance of martingales?

    I know mathematical definition of martingales, but I want to know their application in different branches.
    I only know that martingale was gambling strategy, and also that it can be used in stock exchange.
    I would be grateful if someone could explain me
    Thanks
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  2. #2
    MHF Contributor matheagle's Avatar
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    It's just a fair game, as opposed to super or sub-martingales.
    You expect to be were you where based on past information.
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