flo-poly/src/basic/bigint/b-abs-coeff.ts

A practical, root-focused JavaScript polynomial utility library.

/**
 * Returns the polynomial with all coeffients the absolute value of the given 
 * polynomial.
 * 
 * @param p a polynomial with coefficients given densely as an array of
 * bigints from highest to lowest power, e.g. `[5n,-3n,0n]` 
 * represents the polynomial `5x^2 - 3x`
 * 
 * @doc
 */
function bAbsCoeff(p: bigint[]): bigint[] {
    const p_: bigint[] = [];
    for (let i=0; i<p.length; i++) {
        const v = p[i];
        p_.push(v < 0n ? -v : v);
    }

    return p_;
}


export { bAbsCoeff }