From: Brian Candler <b.candler@...>
Date: 2010-08-17T22:29:34+09:00
Subject: Re: can i do this in ruby? a simulation process

Bruce Wayner wrote:
> i would like to know if you used rand() in departure time/traveling 
> time..

Yes. rand() by itself gives a random number between 0.0 and 1.0 (well 
actually 0.99999999...). Hence, rand*30.0 gives you a value between 0 
and 30.
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