permanent

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permanent

[′pər·mə·nənt]
(mathematics)
For a matrix with m rows and n columns, with n equal to or greater than m, the sum, over all permutations of m columns, of a product of m terms, where the i th term in the product is the term in the i th row and the permutation of the i th column.
References in classic literature ?
In some of the larger towns there are artels of a much more complex kind-- permanent associations, possessing large capital, and pecuniarily responsible for the acts of the individual members.
It is evident that men incline to call those conditions habits which are of a more or less permanent type and difficult to displace; for those who are not retentive of knowledge, but volatile, are not said to have such and such a 'habit' as regards knowledge, yet they are disposed, we may say, either better or worse, towards knowledge.
That permanent sentiment seemed pointed at that moment by especial malice and curiosity.
Although it was the permanent residence of several distinguished chiefs, and of the noble Mehevi in particular, it was still at certain seasons the favourite haunt of all the jolly, talkative, and elderly savages of the vale, who resorted thither in the same way that similar characters frequent a tavern in civilized countries.
They no longer attempted to establish themselves in any permanent abode that might be an object of attack to their cruel foes.
Indeed," Richard Salton went on, "I am in hopes that you will make your permanent home here.
My loss of confidence in myself in that line was permanent.
It seems a certain permanent average; as the atmosphere is a permanent composition, whilst so many gases are combined only to be decompounded.