Function: noun
Date: circa 1932
: a permutation that is produced by the successive application of an even number of interchanges of pairs of elements
Function: noun
Date: circa 1932
: a permutation that is produced by the successive application of an even number of interchanges of pairs of elements
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012