1SLARUV(1)           LAPACK auxiliary routine (version 3.1)           SLARUV(1)
2
3
4

NAME

6       SLARUV - a vector of n random real numbers from a uniform (0,1)
7

SYNOPSIS

9       SUBROUTINE SLARUV( ISEED, N, X )
10
11           INTEGER        N
12
13           INTEGER        ISEED( 4 )
14
15           REAL           X( N )
16

PURPOSE

18       SLARUV  returns  a vector of n random real numbers from a uniform (0,1)
19       distribution (n <= 128).
20
21       This is an auxiliary routine called by SLARNV and CLARNV.
22
23

ARGUMENTS

25       ISEED   (input/output) INTEGER array, dimension (4)
26               On entry, the seed of the random number  generator;  the  array
27               elements  must be between 0 and 4095, and ISEED(4) must be odd.
28               On exit, the seed is updated.
29
30       N       (input) INTEGER
31               The number of random numbers to be generated. N <= 128.
32
33       X       (output) REAL array, dimension (N)
34               The generated random numbers.
35

FURTHER DETAILS

37       This routine uses a multiplicative  congruential  method  with  modulus
38       2**48 and multiplier 33952834046453 (see G.S.Fishman,
39       'Multiplicative  congruential  random  number  generators  with modulus
40       2**b: an exhaustive analysis for b = 32 and a partial analysis for b  =
41       48', Math. Comp. 189, pp 331-344, 1990).
42
43       48-bit integers are stored in 4 integer array elements with 12 bits per
44       element. Hence the routine is portable across machines with integers of
45       32 bits or more.
46
47
48
49
50 LAPACK auxiliary routine (versionNo3v.e1m)ber 2006                       SLARUV(1)