import { fastExpansionSum } from "big-float-ts";


/** 
 * Returns the exact result (bar underflow / overflow) of evaluating the given 
 * polynomial at 1.
 * 
 * * faster than at an arbitrary point. 
 * 
 * @param p 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`
 * 
 * @doc
 */
function eEvaluateAt1(p: number[][]): number[] {
    let res = [0];
    for (let i=0; i<p.length; i++) {
        res = fastExpansionSum(res, p[i]);
    }

    return res;
}


export { eEvaluateAt1 }