e-content
▸ function eContent
(p: number[][]): number[]
Defined in factor/expansion/e-content.ts:29
Returns cont(p), i.e. the content of the given polynomial defined as the greatest common divisor of its coefficients.
the sign is chosen such that dividing the polynomial by cont(p) will always result in a positive leading coefficient
see e.g. Factorization of polynomials
example: let
p = -10x² + 5x + 5 = (-5)(2x² - x - 1)so that-5is the content ofpand2x² - x - 1is its primitive part.
Parameters:
| Name | Type | Description |
|---|---|---|
p | number[][] | a polynomial with coefficients given densely as an array of Shewchuk expansions from highest to lowest power, e.g. [[5],[-3],[0]] represents the polynomial 5x^2 - 3x |
Returns: number[]