Ivan Sergio Borgonovo wrote:
I need shorter values (because they should be easier to type.
To be sure to modify the function in a sensible way I really would
appreciate some pointer.
Still if it return
What exactly is your desired range of output values?
Best regards,
--
Daniel
Ivan Sergio Borgonovo wrote:
r2:=l1 # 1366.0*r1+150889)%714025)/714025.0)*32767)::int;
-- but what about this? where does it come from?
This function:
(1366.0*r1+150889)%714025
implements a known method to get random numbers. I think it comes from
Numerical recipes by William
On Tue, 07 Jul 2009 12:07:48 +0200
Daniel Verite dan...@manitou-mail.org wrote:
Ivan Sergio Borgonovo wrote:
r2:=l1 # 1366.0*r1+150889)%714025)/714025.0)*32767)::int;
-- but what about this? where does it come from?
This function:
(1366.0*r1+150889)%714025
implements a
Ivan Sergio Borgonovo wrote:
I don't get the 1366.0 and the 714025.0.
Writing 1366.0 isn't going to use float arithmetic?
Yes, that's on purpose. Now that you mention it, I think that 1366.0
could be an integer instead, but the division by 714025 and
multiplication by 32767 have to
On Sat, 02 May 2009 11:26:28 +0200
Daniel Verite dan...@manitou-mail.org wrote:
Note that it returns a bigint because we don't have unsigned
integers in PG. If you're OK with getting negative values, the
return type can be changed to int.
Otherwise if you need a positive result that fits in
