dlaruv.f man page

dlaruv.f —

Synopsis

Functions/Subroutines

subroutine dlaruv (ISEED, N, X)
DLARUV returns a vector of n random real numbers from a uniform distribution.

Function/Subroutine Documentation

subroutine dlaruv (integer, dimension( 4 )ISEED, integerN, double precision, dimension( n )X)

DLARUV returns a vector of n random real numbers from a uniform distribution.

Purpose:

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

This is an auxiliary routine called by DLARNV and ZLARNV.

Parameters:

ISEED

ISEED is 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

N is INTEGER
The number of random numbers to be generated. N <= 128.

X

X is DOUBLE PRECISION array, dimension (N)
The generated random numbers.

Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

September 2012

Further Details:

This routine uses a multiplicative congruential method with modulus
2**48 and multiplier 33952834046453 (see G.S.Fishman,
'Multiplicative congruential random number generators with modulus
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.

Definition at line 96 of file dlaruv.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

dlaruv(3) is an alias of dlaruv.f(3).

Sat Nov 16 2013 Version 3.4.2 LAPACK