Matroid theory is an important part of combinatorial mathematics and discrete mathematics.

拟阵是组合数学和离散数学的重要组成部分。

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According to UPS, the number to describe the complete set of possibilities in the scenario outlined above, as calculated using combinatorial mathematics, would have 199 digits.

UPS利用组合数学的算法得出，以上所述的情景中所有可能的线路的总数，是一个199位的数字。

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The purpose of this paper is to investigate some laws and techniques in working on mathematics contest problems by analyzing some cases of combinatorial mathematics which have been generalized.

它在我国中小学数学教育中普遍化和规模化的存在，主要是受到多种内在因素，如数学竞赛的教育观念、教育传统和文化心理，以及思维方式等的钳制。

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