Yet Another "Thickie" question / Random Range

ruby-talk
1

I have to get my head around having “lots of memory” and not being limited
to 64k (readum… k) of data, like I used to be.

Anyone got a good algorythm laying around for the equivalent of random() in
python…

as in Random(x…y) to get a random number in the range x…y

Thanks,

Mark

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-----Original Message-----
From: Hal E. Fulton [mailto:hal9000@hypermetrics.com]
Sent: 23 September 2002 12:58
To: ruby-talk@ruby-lang.org
Subject: Re: Yet Another “Thickie” question from Mark

As for reading it “as needed”: That made
sense 20 years ago. But it’s only 107K.
That’s what, 1/5000th of your PC’s RAM?
I’d say: Put it in an array and forget it.

Hal

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2

In article 46487A0D3619D511BF860000F6B99827D2C5DE@PRESGGS17, Firestone,
Mark - Technical Support wrote:

Anyone got a good algorythm laying around for the equivalent of random() in
python…

as in Random(x…y) to get a random number in the range x…y

If you’re talking integers then this could be the basis for something:

def random(r)
# assume r is a range of integers first < last
r.first + rand(r.last - r.first + (r.exclude_end? ? 0 : 1))
end

(no error checking, but

random(6 … 10) # => an integer from 6, 7, 8, 9, 10
random(6 … 10) # => an integer from 6, 7, 8, 9

seems reasonable to me. I don’t know what python does…)

Hope this helps,

Mike

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