/**
 * Solve the problem of js addition accuracy
 * e.g.
 *  0.1 + 0.2 => 0.30000000000000004
 *  plus(0.1, 0.2) => 0.3
 * @param {Number} num1
 * @param {Number} num2
 */
export declare function plus(num1: number, num2: number): number;
export declare function minus(num1: number, num2: number): number;