SLARUV  -  return a vector of n random real numbers from a
       uniform (0,1)


SYNOPSIS

       SUBROUTINE SLARUV( ISEED, N, X )

           INTEGER        N

           INTEGER        ISEED( 4 )

           REAL           X( N )


PURPOSE

       SLARUV returns a vector of n random real  numbers  from  a
       uniform (0,1) distribution (n <= 128).

       This  is an auxiliary routine called by SLARNV and CLARNV.


ARGUMENTS

       ISEED   (input/output) INTEGER array, dimension (4)
               On entry, the seed of the random number generator;
               the array elements must be between 0 and 4095, and
               ISEED(4) must  be  odd.   On  exit,  the  seed  is
               updated.

       N       (input) INTEGER
               The number of random numbers to be generated. N <=
               128.

       X       (output) REAL array, dimension (N)
               The generated random numbers.


FURTHER DETAILS

       This routine uses  a  multiplicative  congruential  method
       with  modulus  2**48  and  multiplier  33952834046453 (see
       G.S.Fishman,
       2**b: an exhaustive analysis for b  =  32  and  a  partial
       analysis  for b = 48', Math. Comp. 189, pp 331-344, 1990).

       48-bit integers are stored in  4  integer  array  elements
       with  12  bits  per element. Hence the routine is portable
       across machines with integers of 32 bits or more.


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