## 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

- A chemical hair treatment imparting or removing curliness, whose effects typically last for a period of weeks; a perm.
- 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

- To perm (the hair).

#### Adjective

- Without end, eternal.
*Nothing in this world is truly***permanent**.

- 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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