initial permutation

• 初始置换

initial permutation的用法和样例：

例句

1. Other enumeration problems lead us to the study of orbits of permutation groups.
   其它的计数问题引导我们去研究置换群的轨道。
2. This classification is called the parity of the permutation analogous to the definition of parity of integers.
   这种分类叫作置换的奇偶性，类似于整数偶性的定义。