PERMANENT

Permanent

The permanent of a square matrix in linear algebra is a function of the matrix similar to the determinant. The permanent, as well as the determinant, is a polynomial in the entries of the matrix. Both permanent and determinant are special cases of a more general function of a matrix called the immanant.

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permanent

Noun

  1. A chemical hair treatment imparting or removing curliness, whose effects typically last for a period of weeks; a perm.
  2. Given an <math>n \times n</math> matrix <math>a_{ij} \,</math>, the sum over all permutations <math>\pi \,</math> of <math>\prod_{i=1}^n{a_{i\pi(i)}}</math>.

Verb

  1. To perm (the hair).

Adjective

  1. Without end, eternal.
    Nothing in this world is truly permanent.
  2. Lasting for an indefinitely long time.
    The countries are now locked in a permanent state of conflict.


The above text is a snippet from Wiktionary: permanent
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