# zlarnv (3) - Linux Man Pages

zlarnv.f -

## SYNOPSIS

### Functions/Subroutines

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

## Function/Subroutine Documentation

### subroutine zlarnv (integerIDIST, integer, dimension( 4 )ISEED, integerN, complex*16, dimension( * )X)

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

Purpose:

``` ZLARNV 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*16 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 100 of file zlarnv.f.

## Author

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