import { TwoF64, f64 } from "../base/common.js";
import { twoSum } from "../base/eft.js";
import { AccurateDWPlusDW, DWPlusFP } from "../base/algorithms.js";
//#region src/arithmetic/add.d.ts
export declare const add11: typeof twoSum;
export declare const add21: typeof DWPlusFP;
export declare const add22: typeof AccurateDWPlusDW;
/**
 * Extended-precision addition of a given sequence of floating-point numbers.
 *
 * @param terms `ArrayLike` object of `f64` summands
 * @returns The sum of the given `terms` as a {@link TwoF64|`TwoF64`} number
 */
export declare function sum1(terms: ArrayLike<f64>): TwoF64;
/**
 * Extended-precision addition of a given sequence of `TwoF64` numbers.
 *
 * @param terms `ArrayLike` object of `TwoF64` summands
 * @returns The sum of the given `terms` as a {@link TwoF64|`TwoF64`} number
 */
export declare function sum2(terms: ArrayLike<TwoF64>): TwoF64;
/**
 * Extended-precision addition of a given sequence of `TwoF64` numbers.
 *
 * @param terms `ArrayLike` object of `TwoF64` summands
 * @returns The sum of the given `terms` as a {@link TwoF64|`TwoF64`} number
 */
export declare function sum2_alt(terms: ArrayLike<TwoF64>): TwoF64;
/**
 * Extended-precision addition `x + y`.
 *
 * @param x A `f64` or `TwoF64` number
 * @param y A `f64` or `TwoF64` number
 * @returns The {@link TwoF64|`TwoF64`} representation of `x + y`
 */
export declare function add(x: f64 | TwoF64, y: f64 | TwoF64): TwoF64;
/**
 * Extended-precision addition of a given sequence of numbers (that must all be
 * of the same type, either `f64` or `TwoF64`, no mix allowed).
 *
 * @param terms Array-like object of summands
 * @returns The sum of the given `terms` as a {@link TwoF64|`TwoF64`} number
 */
export declare function sum(terms: ArrayLike<f64> | ArrayLike<TwoF64>): TwoF64;
//#endregion