[#3109] Is divmod dangerous? — Dave Thomas <Dave@...>

14 messages 2000/06/06

[#3149] Retrieving the hostname and port in net/http — Roland Jesse <jesse@...>

Hi,

12 messages 2000/06/07

[#3222] Ruby coding standard? — Robert Feldt <feldt@...>

16 messages 2000/06/09

[#3277] Re: BUG or something? — Aleksi Niemel<aleksi.niemela@...>

> |I am new to Ruby and this brings up a question I have had

17 messages 2000/06/12
[#3281] Re: BUG or something? — Dave Thomas <Dave@...> 2000/06/12

Aleksi Niemel<aleksi.niemela@cinnober.com> writes:

[#3296] RE: about documentation — Aleksi Niemel<aleksi.niemela@...>

> I want to contribute to the ruby project in my spare time.

15 messages 2000/06/12

[#3407] Waffling between Python and Ruby — "Warren Postma" <embed@...>

I was looking at the Ruby editor/IDE for windows and was disappointed with

19 messages 2000/06/14

[#3410] Exercice: Translate into Ruby :-) — Jilani Khaldi <jilanik@...>

Hi All,

17 messages 2000/06/14

[#3415] Re: Waffling between Python and Ruby — Andrew Hunt <andy@...>

>Static typing..., hmm,...

11 messages 2000/06/14

[#3453] Re: Static Typing( Was: Waffling between Python and Ruby) — Andrew Hunt <andy@...>

32 messages 2000/06/16

[#3516] Deep copy? — Hugh Sasse Staff Elec Eng <hgs@...>

Given that I cannot overload =, how should I go about ensuring a deep

20 messages 2000/06/19

[#3694] Why it's quiet — hal9000@...

We are all busy learning the new language

26 messages 2000/06/29
[#3703] Re: Why it's quiet — "NAKAMURA, Hiroshi" <nahi@...> 2000/06/30

Hi,

[#3705] Re: Why it's quiet — matz@... (Yukihiro Matsumoto) 2000/06/30

Hi,

[ruby-talk:03610] Re: Is there a statistician in the house?

From: Dave Thomas <Dave@...>
Date: 2000-06-22 04:49:00 UTC
List: ruby-talk #3610
ts <decoux@moulon.inra.fr> writes:

> >>>>> "D" == Dave Thomas <Dave@thomases.com> writes:
> 
> D> I'm looking for a couple of unit tests for Ruby's random number
> D> generator. 
> 
>  ruby use the generator of the system (rand48() or rand()), these
>  generators are well known. 

I know, but... I still need to test that it's manipulating the results
correctly and not introducing any bias or other errors. For example,
if the value of RANDOM_MAX in random.c is wrong, then rand(0) may
return numbers in the wrong range. Similarly, there are divisions and
multiplications of the results which have the potential for off-by-one
errors (I'm sure they're actually correct, but we're writing tests so
we have to be pessimistic).

So... I feel that to be thorough I need to test the numbers returned.
Trust me--I'd rather not ;-)


Dave

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