       Re: strange random behavior ?

• To: mathgroup at smc.vnet.net
• Subject: [mg69937] Re: strange random behavior ?
• From: dh <dh at metrohm.ch>
• Date: Thu, 28 Sep 2006 06:14:24 -0400 (EDT)
• References: <efdjca\$je\$1@smc.vnet.net>

```Hi Arek,
From what you tell, I guess that the state of the random number
generator depends on the range of random numbers it generates. To give a
definite answer, one would have to know how the random generator is
implemented.
Daniel

Arkadiusz.Majka at gmail.com wrote:
> Hi,
>
> For
>
> SeedRandom
> Table[Random[Integer, {1, 6}], {5}]
> Table[Random[Integer, {1, 3}], {5}]
>
> I get
>
> Out=
> {2,1,6,2,6}
>
> Out=
> {2,1,3,1,3}
>
> When i repeat I obviosly get the same (magic of seedrandom)
>
> SeedRandom
> Table[Random[Integer, {1, 6}], {5}]
> Table[Random[Integer, {1, 3}], {5}]
>
>
> Out=
> {2,1,6,2,6}
>
> Out=
> {2,1,3,1,3}
>
> Bu when I change the range of random numbers in generation of the first
> list , say 1->2
>
> SeedRandom
> Table[Random[Integer, {2, 6}], {5}]
> Table[Random[Integer, {1, 3}], {5}]
>
> I get
>
> Out=
> {3,2,3,6,6}
>
> Out=
> {2,2,3,1,3}
>
> Since Seed is still the same (7), why second list is changed? (Out
> does not equal to Out)
>
> This behavior does not take place when we do not deal with tables but
> with single elements.
>
> Arek
>

```

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