/* * @license Apache-2.0 * * Copyright (c) 2019 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ // TypeScript Version: 4.1 /** * Rounds a numeric value to the nearest multiple of `10^n`. * * ## Notes * * - When operating on floating-point numbers in bases other than `2`, rounding to specified digits can be inexact. * * @param x - input value * @param n - integer power of `10` * @returns rounded value * * @example * // Round a value to 2 decimal places: * var v = roundn( 3.141592653589793, -2 ); * // returns 3.14 * * @example * // If n = 0, `roundn` behaves like `round`: * var v = roundn( 3.141592653589793, 0 ); * // returns 3.0 * * @example * // Round a value to the nearest thousand: * var v = roundn( 12368.0, 3 ); * // returns 12000.0 */ declare function roundn( x: number, n: number ): number; // EXPORTS // export = roundn;