# dlarnv.f man page

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 (integer IDIST, integer, dimension( 4 ) ISEED, integer N, 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:**December 2016

**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 99 of file dlarnv.f.

## Author

Generated automatically by Doxygen for LAPACK from the source code.

## Referenced By

The man page dlarnv(3) is an alias of dlarnv.f(3).

Tue Nov 14 2017 Version 3.8.0 LAPACK