# clarnv.f man page

clarnv.f

## Synopsis

### Functions/Subroutines

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

## Function/Subroutine Documentation

### subroutine clarnv (integer IDIST, integer, dimension( 4 ) ISEED, integer N, complex, dimension( * ) X)

**CLARNV** returns a vector of random numbers from a uniform or normal distribution.

**Purpose:**

CLARNV returns a vector of n random complex numbers from a uniform or normal distribution.

**Parameters:**-
*IDIST*IDIST is INTEGER Specifies the distribution of the random numbers: = 1: real and imaginary parts each uniform (0,1) = 2: real and imaginary parts each uniform (-1,1) = 3: real and imaginary parts each normal (0,1) = 4: uniformly distributed on the disc abs(z) < 1 = 5: uniformly distributed on the circle abs(z) = 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 COMPLEX 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 SLARUV 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 101 of file clarnv.f.

## Author

Generated automatically by Doxygen for LAPACK from the source code.

## Referenced By

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

Tue Nov 14 2017 Version 3.8.0 LAPACK