The Russian mathematician Andrey Markov is best-known for a concept in probability theory called Markov chains. They are used in everything from search algorithms to evolution models. His study of irrational numbers is lesser known, but no less beautiful.
俄罗斯数学家安德烈-马尔科夫（Andrey Markov）最著名的是概率论中的一个概念--马尔科夫链。从搜索算法到演化模型，马尔科夫链被广泛应用。他对无理数的研究鲜为人知，但同样精彩。