Vsauce Math Magic

Demo of Math Magic

Every time you shuffle a deck of cards well, smoosh it for a few minutes or riffle it seven or more times, chances are you have put those playing cards into an order that they have never been in in the entire history of cards, or humans, or the universe. Seriously. -- Michael Stevens

When the program starts, it will continuously and randomly reorder a deck of cards, remembering each order it produces. When an order has appeared more than once, it stops. This program demonstrates how long it would take to achieve two identical deck orders through random shuffling. In fact, the program will start to take a significant amount of time even if there are only 12 cards. So if you select 13 cards, chances are your program is going to freeze for a while. 13! (13 factorial) is already QUITE BIG!!

Please check out the awesome video and the links provided in the video description!

Install

$ npm install --save vsauce-math-magic

Usage

const vsauceMathMagic = require('vsauce-math-magic');
 
vsauceMathMagic(3);
//=> [ [ 2, 3, 1 ], [ 2, 1, 3 ], [ 2, 3, 1 ] ]

API

vsauceMathMagic(count)

count

Type: number

CLI

$ npm install --global vsauce-math-magic
$ vsauce-math-magic 3

License

MIT © Steve Mao