/**
 * 支持浮点数四则运算的链式操作类
 */
export declare class AsmdCalc {
    private total;
    get value(): number;
    constructor(value: any);
    /**
     * 加法
     *
     * ### Example (es module)
     * ```js
     * import { AsmdCalc } from 'asmd-calc';
     * const a = new AsmdCalc(0.1);
     * console.log(+a.add(0.2, 3));
     * // => 3.3
     * console.log(+a.add(0.2).add(3));
     * // => 6.5
     * ```
     *
     * @param args
     */
    add(...args: any[]): this;
    /**
     * 减法
     *
     * ### Example (es module)
     * ```js
     * import { AsmdCalc } from 'asmd-calc';
     * const a = new AsmdCalc(0.3);
     * console.log(+a.sub(0.1, 0.2));
     * // => 0
     * console.log(+a.sub(0.3).add(0.3));
     * // => 0
     * ```
     *
     * @param args
     */
    sub(...args: any[]): this;
    /**
     * 乘法
     *
     * ### Example (es module)
     * ```js
     * import { AsmdCalc } from 'asmd-calc';
     * const a = new AsmdCalc(0.1);
     * console.log(+a.mul(0.2));
     * // => 0.02
     * console.log(+a.mul(0.3).mul(30));
     * // => 0.18
     * ```
     *
     * @param args
     */
    mul(...args: any[]): this;
    /**
     * 除法
     *
     * ### Example (es module)
     * ```js
     * import { AsmdCalc } from 'asmd-calc';
     * const a = new AsmdCalc(0.3);
     * console.log(+a.div(0.1, 0.2).div(0.3));
     * // => 50
     * ```
     *
     * @param args
     */
    div(...args: any[]): this;
    /**
     * 最多保留 N 位小数
     *
     * ### Example (es module)
     * ```js
     * import { AsmdCalc } from 'asmd-calc';
     * const a = new AsmdCalc(0.33366666);
     * console.log(+a.keepDotLength(6));
     * // => 0.333666
     * console.log(+a.keepDotLength(5, false));
     * // => 0.33366
     * console.log(+a.keepDotLength(4, true));
     * // => 0.3337
     * ```
     *
     * @param len
     * @param isRounding
     */
    keepDotLength(len: number, isRounding?: boolean): this;
    /**
     * 最多保留 N 位小数
     *
     * ### Example (es module)
     * ```js
     * import { AsmdCalc } from 'asmd-calc';
     * const a = new AsmdCalc(1.45);
     * console.log(a.toFixed(1));
     * // => 0.5
     * console.log(a.toFixed(2));
     * // => 1.45
     * console.log(a.toFixed(3));
     * // => 1.450
     * ```
     *
     */
    toFixed(len: number): string;
    protected valueOf(): number;
    protected toString(): string;
}