Data, Knowledge & Life

Weiwei Cheng's blog

Get a true random number

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As you may know, most random numbers used in computer programs are pseudo-random, which means they are generated in a predictable fashion using a mathematical formula. They are not really random! Though this is fine for many purposes, it may not be random in the way you expect if you’re used to dice rolls and lottery drawings.

A true random number generator is offered by (more options). The randomness comes from atmospheric noise, which for many purposes is better than the pseudo-random number algorithms typically used in computer programs. See more on randomness at here.


Written by Weiwei

11/08/2009 在 14:15

发表在 杂话


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