Scroll to navigation

dlarnv.f(3) LAPACK dlarnv.f(3)

NAME

dlarnv.f -

SYNOPSIS

Functions/Subroutines


subroutine dlarnv (IDIST, ISEED, N, X)
 
DLARNV returns a vector of random numbers from a uniform or normal distribution.

Function/Subroutine Documentation

subroutine dlarnv (integerIDIST, integer, dimension( 4 )ISEED, integerN, double precision, dimension( * )X)

DLARNV returns a vector of random numbers from a uniform or normal distribution.
Purpose: 
 DLARNV returns a vector of n random real numbers from a uniform or
 normal distribution.
Parameters:
IDIST 
          IDIST is INTEGER
          Specifies the distribution of the random numbers:
          = 1:  uniform (0,1)
          = 2:  uniform (-1,1)
          = 3:  normal (0,1)
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.
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 calls the auxiliary routine DLARUV to generate random
  real numbers from a uniform (0,1) distribution, in batches of up to
  128 using vectorisable code. The Box-Muller method is used to
  transform numbers from a uniform to a normal distribution.
Definition at line 98 of file dlarnv.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.
Wed Oct 15 2014 Version 3.4.2