ts-math/lib/permute.d.ts

A collection of math functions and packages written in Typescript

/**
 * The factorial of n.
 */
export declare function fact(n: number): number;
/**
 * Rotate the elements in array from index n to m. Example [0,1,2,3,4,5], 2,4 => [0,1,4,2,3,5]
 * @param {Array} arr - The array to rotate
 * @param {int} n - Start index
 * @param {int} m - End Index (including)
 */
export declare function rotate(arr: number[], n: number, m: number): void;
/**
 * Permutes an array.
 * @param {*} arr - The array to permute
 * @param {*} idx - The permutation index. An index between 0 and fact(arr.length)-1
 */
export declare function permute(arr: number[], idx: number): number[];