1DLARUV(1)           LAPACK auxiliary routine (version 3.1)           DLARUV(1)
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NAME

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

9       SUBROUTINE DLARUV( ISEED, N, X )
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11           INTEGER        N
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13           INTEGER        ISEED( 4 )
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15           DOUBLE         PRECISION X( N )
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PURPOSE

18       DLARUV  returns  a vector of n random real numbers from a uniform (0,1)
19       distribution (n <= 128).
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21       This is an auxiliary routine called by DLARNV and ZLARNV.
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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.
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30       N       (input) INTEGER
31               The number of random numbers to be generated. N <= 128.
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33       X       (output) DOUBLE PRECISION array, dimension (N)
34               The generated random numbers.
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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).
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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.
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50 LAPACK auxiliary routine (versionNo3v.e1m)ber 2006                       DLARUV(1)