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Mark Hardman · (This post was last modified: 03-01-2015 03:33 AM by Mark Hardman.)

(02-28-2015 10:42 PM)Namir Wrote: Does anyone know of an algorithm to shuffle an array of integers WITHOUT USING RANDOM NUMBER FUNCTIONS? I discovered a good (not the best) method for generating random numbers is that you start with an array of n elements (with values from 1 to n), shuffle the elements of that array and then divide each array element by n+1. You get a good set of random numbers. I can do the shuffling using random number functions, like randperm in Matlab. I am looking for a way to shuffle the array (initially in ascending or descending order) using clever swaps of elements. I am basically looking to transform perfect order into as perfect chaos as possible!

Namir

You might be able to get a random order using a perfect shuffle:

The Mathematics of Perfect Shuffles

Thank you for your continued efforts in pushing the limits of randomization. Fascinating stuff.