The first permutation makes the second seem very probable, although I cannot as yet conceive a means of realizing it.
This indicates the distinction between the permutation of letters and the transition of letters.
Nevertheless, it is much easier to give the child a vivid impression of them by the permutation of parts than by explanation.
The economic reform wrought is largely of the nature of a permutation in the methods of conspicuous waste.
Let this be learned to perfection, backwards and forwards, or by permutation of words, and repeated the next day.
This permutation is made very convenient by the sentences being printed in sections which may be moved about and combined at will.
We may thus select the four coins in one hundred ways, and the four removed may be arranged by permutation in twenty-four ways.
This permutation was not quite unnatural; for Wilhelm and Laertes did resemble one another, though in a very distant manner.
He is not a permutation and combination of old elements, transferred through the parents.
It is clear how very different the results would become by the permutation and combination of these diverse factors.
mid-14c., from Old French permutacion "change, shift" (14c.), from Latin permutationem (nominative permutatio) "a change, alteration, revolution," noun of action from past participle stem of permutare "change thoroughly, exchange," from per- "thoroughly" (see per) + mutare "to change" (see mutable).
mathematics
1. An ordering of a certain number of elements of a given set.
For instance, the permutations of (1,2,3) are (1,2,3) (2,3,1) (3,1,2) (3,2,1) (1,3,2) (2,1,3).
Permutations form one of the canonical examples of a "group" - they can be composed and you can find an inverse permutation that reverses the action of any given permutation.
The number of permutations of r things taken from a set of n is
n P r = n! / (n-r)!
where "n P r" is usually written with n and r as subscripts and n! is the factorial of n.
What the football pools call a "permutation" is not a permutation but a combination - the order does not matter.
2. A bijection for which the domain and range are the same set and so
f(f'(x)) = f'(f(x)) = x.
(2001-05-10)