How to generate different random numbers?
Pedro Gimeno Fortea
parigalo at formauri.es
Wed Feb 1 10:58:26 CET 2006
On 02/01/2006 09:06:20 AM, Forum Joiner wrote:
> I have this code:
> // We generate the state
> gmp_randinit_default ( state_1 );
> // We generate the random number
> mpz_urandomb (random_n, state, 10);
> The generated numbers are always the same. I don't know how to set
> the seed.
Look up gmp_randseed and gmp_randseed_ui in the manual (and please look
better next time before asking). You'll need a way of generating a
different seed each time; that's not the library's responsibility as
it's highly system- or application-dependent.
> I know how to generate numbers from 1 to 2^10, but how to get numbers
> only in the 2^9 ... 2^10 interval?
Just add 2^9 to a number with a maximum of (2^10-2^9). Do the math
Note that this list is not the proper place to ask such basic questions
which are actually not GMP-related. Consider asking for help in a
different forum or mailing list.
-- Pedro Gimeno
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