From: David Stanislaus <stanislaus_d@...>
Date: 2008-06-10T10:44:26+09:00
Subject: Re: Random Number Stuff

Oh man...
It's probably faster to show you what I do understand, but I'm just 
goint to show you what I don't...



Pe単a, Botp wrote:
> From: stanislaus_d@hotmail.com [mailto:stanislaus_d@hotmail.com]
> # How would you create a random number generator thats limited to a
> # specific rang? say 1930 - 1950
> 
> botp@botp-desktop:~$ qri rand
> ------------------------------------------------------------ Kernel#rand
>      rand(max=0)    => number
> ------------------------------------------------------------------------
>      Converts max to an integer using max1 = max.to_i.abs. If the 
>      result is zero, returns a pseudorandom floating point number
>      greater than or equal to 0.0 and less than 1.0. Otherwise, returns
>      a pseudorandom integer greater than or equal to zero and less than
>      max1. Kernel::srand may be used to ensure repeatable sequences of
>      random numbers between different runs of the program. Ruby
>      currently uses a modified Mersenne Twister with a period of
>      2**19937-1.
> [none of this but I don't think it is really necessary for my question so we can just disregard it]
> so,
> [whats irb whats all this main stuff and things, why is 1930 out side and added to the rand couldn't I just use rand(1950 - 1930)??? and maybe if I showed you what I was trying to do.  http://pine.fm/LearnToProgram/?Chapter=06 the bottom Deaf Grandma.]
> irb(main):007:0> 1930 + rand(1950 - 1930)
> => 1940
> irb(main):008:0> 1930 + rand(1950 - 1930)
> => 1932
> irb(main):009:0> 1930 + rand(1950 - 1930)
> => 1947
> 
> kind regards -botp

Urgh, I know I really don't understand ruby at all.
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