Re: Purpose of second argument for math.randomseed

[Lorenzo Donati <lorenzodonatibz@...>]

On 20/07/2018 23:50, Albert Chan wrote:
> > math.randomseed (x [, y])
> >
> > Sets x and y as the "seed" for the pseudo-random generator: equal seeds produce equal sequences of numbers. The default for y is zero.
> > ------------------------------------------------------------
> >
> > Does anyone knows what's the purpose of the y argument, besides making the seed "bidmensional".
> >
> > Cheers!
> >
> > -- Lorenzo
>
> It allowed for up to 2^128 different seeds.
Thanks! Yes, it makes sense.

Anyway I think that this info should be spelled out clearly in the 
manual, to avoid people being puzzled.

Suggestion for Lua team: a simple sentence like the following should 
suffice.

"y allows, together with x, to specify 2^128 different seeds, unlike 
previous version of Lua."

BTW, this should be mentioned in the language changes section of the 
manual (for someone might be important to being able to generate up to 
2^128 different "deterministic" sequences).

Cheers!

-- Lorenzo