/* RAN0 U[0,1) */
/* Notice: Initial seed of this version is based on rndu for simplicity. */
new; cls;
nn=10000;                       /* Up to 10000 in Light version of GAUSS */
x=ran0(nn);
library pgraph;
graphset;
call hist(x,29);




proc ran0(nn);
   local a,c,m,x,i;
   a=16807; c=0; m=2^31-1;
   x=zeros(nn,1);
/* seed */
   x[1]=floor(rndu(1,1)*(m-1))+1;         /* integer between 1 and m-1 */
/* LCG */
   i=1;
   do while i<=nn-1;
      x[i+1]=(a*x[i]+c)%m;
      i=i+1;
   endo;
   x=x/m;         /* If you want to avoid 0's, replace this line by x=(x+1)/(m+1); */
   retp(x);
endp;