/**
 * @file
 * Math and floating point utilities.
 */
/**
 * A strict version of `parseFloat` that requires the entire input string to be valid decimal
 * or scientific format.
 *
 * @param {String} string
 * @returns {(Number|NaN)}
 * @public
 */
export declare function strictParseFloat(string: string): number;
/**
 *
 * Rounds a number to a specific exponent of base 10.
 *
 * Examples:
 *   * `value` 125.678 and `exp` -2 rounds to 125.68
 *   * `value` 125.678 and `exp` -1 rounds to 125.7
 *   * `value` 125.678 and `exp` 0 rounds to 126
 *   * `value` 125.678 and `exp` 1 rounds to 130
 *   * `value` 125.678 and `exp` 2 rounds to 100
 *
 * @param {Number} value
 * @param {Number} [exp=0] Exponent of base 10 of the decimal place to round to.
 * @returns {(Number|NaN)} The rounded number or NaN if `value` is not a Number or `exp` isn't
 *  an integer.
 * @public
 */
export declare function roundToDecimal(value: number, exp?: number): number;
/**
 * Returns the nearest whole power of ten less or equal to the given number.
 *
 * Examples:
 *   * 10 returns 10
 *   * 11 returns 10
 *   * 99 returns 10
 *   * 100 returns 100
 *
 * @param {Number} number
 * @returns {(Number|NaN)} The result if `number` is positive, `0` if `number` is `0`, `NaN` if
 *  `number` is negative.
 * @public
 */
export declare function floorPowerOfTen(number: number): number;
/**
 * Determines if the given number is less than the minimum safe integer (-9007199254740991).
 * @param {Number} number
 * @return {Boolean} `true` if the given number is less than the minimum safe integer, `false`
 *  otherwise (or if `number` isn't a Number).
 * @public
 */
export declare function isLessThanMinSafeInt(number: number): boolean;
/**
 * Determines if the given number is greater than the maximum safe integer (9007199254740991).
 * @param {Number} number
 * @return {Boolean} `true` if the given number is greater than the maximum safe integer, `false`
 *  otherwise (or if `number` isn't a Number).
 * @public
 */
export declare function isGreaterThanMaxSafeInt(number: number): boolean;