slaruv(3F)

NAME
     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.