Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!cica!tut.cis.ohio-state.edu!dsac!dsacg2!nor1675
From: nor1675@dsacg2.UUCP (Michael Figg)
Newsgroups: comp.sys.amiga
Subject: Lattice random number functions
Keywords: Lattice, Random numbers
Message-ID: <755@dsacg2.UUCP>
Date: 1 Nov 89 14:37:46 GMT
Organization: Defense Logistics Agency Systems Automation Center, Columbus
Lines: 24


I have very little experience with random number generators but have a need
now, although don't care that much being truely random, as discussed here
recently. I tried the Lattice function 'drand48' last night, which from the
documentation, seems to use an internal seed. The docs indicated that this
function would give me a number from 0.0 up to 1.0 (which is what I want),
but I keep getting 0.00000 which is of course in the range but I don't 
think I should get it every time. This is what I did (from memory):

#include <math.h>

void main()
{
   double x;
   x = drand48();
   printf("Random number = %f\n",x);
}

Any ideas what is wrong here? This is Lat 5.02. Haven't installed 5.04 yet.

					      Thanks
-- 
"Hot Damn! Groat Cakes Again  |  Michael Figg
Heavy on the thirty weight!"  |  DLA Systems Automation Center - Columbus,Oh