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Permutation
01
排列, 根本变化
a fundamental change in the nature of a condition
02
排列, 置换
the act of changing the arrangement of a given number of elements
03
排列
(mathematics) a rearrangement of a set of elements in a specific order or sequence
per
mutation
permutation
n
例子
Permutations are often used in probability calculations.
Combinatorics relies on permutations to count arrangements without repetition.
The number of permutations of three distinct objects is six.
In probability theory, factorial calculations often appear in permutations and combinations.
A permutation of the letters ABC could be BAC or CAB.
