/**
 * Convert a number to percentage
 * e.g.: 0.98 => 98%
 *
 * @export
 * @param {number} num
 * @param {number} [digit=0] digits to keep
 * @returns
 */
export declare function toPercentage(num: number, digit?: number): string;
/**
 * Test if a number is within a range
 *
 * @export
 * @param {number} testee
 * @param {number} min
 * @param {number} max
 * @param {[boolean, boolean]} [inclusive=[true, true]] [left, right] side inclusive or not
 * @returns
 */
export declare function isBetween(testee: number, min: number, max: number, inclusive?: [boolean, boolean]): boolean;