import { vecSum } from "./vec-sum.js";


/**
 * * helper function - K compensated vector sum
 * 
 * see http://www.ti3.tuhh.de/paper/rump/OgRuOi05.pdf
 * 
 * @param x 
 * @param K 
 * 
 * @internal
 */
function SumK(p: number[], K: number): number {
    for (let i=1; i<K; i++) {
        p = vecSum(p);
    }

    let res = p[0];
    for (let i=1; i<p.length; i++) {
        res += p[i];
    }

    return res;
}


export { SumK }