properties of permutation and combination 排列组合的一些特性
permutation and combination multiplication rule 排列组合乘法法则
The author thinks that, the system structure refers to the permutation and combination among the elements which come from the total of the interactions of the elements in the system.
作者认为系统的结构是指由系统内元素之间相互作用的总和所形成的元素的排列与组合。
The data compressing method based on constant grade makes use of permutation and combination theory.
常数级压缩方法利用排列组合原理，适于压缩字节内容无规律的文件。
Using gamma function, the paper popularized the common conceptions of the usual factorial, permutation and combination and proved some combination formulas in common use.
依照伽马函数，对通常的阶乘、排列、组合的概念进行了推广，并证明了一些常用的组合公式。
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