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

6       DLARNV  -  a  vector  of n random real numbers from a uniform or normal
7       distribution
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SYNOPSIS

10       SUBROUTINE DLARNV( IDIST, ISEED, N, X )
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12           INTEGER        IDIST, N
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14           INTEGER        ISEED( 4 )
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16           DOUBLE         PRECISION X( * )
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PURPOSE

19       DLARNV returns a vector of n random real numbers from a uniform or nor‐
20       mal distribution.
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ARGUMENTS

24       IDIST   (input) INTEGER
25               Specifies the distribution of the random numbers:
26               = 1:  uniform (0,1)
27               = 2:  uniform (-1,1)
28               = 3:  normal (0,1)
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30       ISEED   (input/output) INTEGER array, dimension (4)
31               On  entry,  the  seed of the random number generator; the array
32               elements must be between 0 and 4095, and ISEED(4) must be  odd.
33               On exit, the seed is updated.
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35       N       (input) INTEGER
36               The number of random numbers to be generated.
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38       X       (output) DOUBLE PRECISION array, dimension (N)
39               The generated random numbers.
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FURTHER DETAILS

42       This routine calls the auxiliary routine DLARUV to generate random real
43       numbers from a uniform (0,1) distribution, in  batches  of  up  to  128
44       using  vectorisable  code.  The  Box-Muller method is used to transform
45       numbers from a uniform to a normal distribution.
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50 LAPACK auxiliary routine (versionNo3v.e1m)ber 2006                       DLARNV(1)