SLARNV(3F)							    SLARNV(3F)

NAME    [Toc]    [Back]

     SLARNV - return a vector of n random real numbers from a uniform or
     normal distribution

SYNOPSIS    [Toc]    [Back]

     SUBROUTINE	SLARNV(	IDIST, ISEED, N, X )

	 INTEGER	IDIST, N

	 INTEGER	ISEED( 4 )

	 REAL		X( * )

PURPOSE    [Toc]    [Back]

     SLARNV returns a vector of	n random real numbers from a uniform or	normal
     distribution.

ARGUMENTS    [Toc]    [Back]

     IDIST   (input) INTEGER
	     Specifies the distribution	of the random numbers:
	     = 1:  uniform (0,1)
	     = 2:  uniform (-1,1)
	     = 3:  normal (0,1)

     ISEED   (input/output) 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	     (input) INTEGER
	     The number	of random numbers to be	generated.

     X	     (output) REAL array, dimension (N)
	     The generated random numbers.

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.
SLARNV(3F)							    SLARNV(3F)

NAME    [Toc]    [Back]

     SLARNV - return a vector of n random real numbers from a uniform or
     normal distribution

SYNOPSIS    [Toc]    [Back]

     SUBROUTINE	SLARNV(	IDIST, ISEED, N, X )

	 INTEGER	IDIST, N

	 INTEGER	ISEED( 4 )

	 REAL		X( * )

PURPOSE    [Toc]    [Back]

     SLARNV returns a vector of	n random real numbers from a uniform or	normal
     distribution.

ARGUMENTS    [Toc]    [Back]

     IDIST   (input) INTEGER
	     Specifies the distribution	of the random numbers:
	     = 1:  uniform (0,1)
	     = 2:  uniform (-1,1)
	     = 3:  normal (0,1)

     ISEED   (input/output) 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	     (input) INTEGER
	     The number	of random numbers to be	generated.

     X	     (output) REAL array, dimension (N)
	     The generated random numbers.

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.


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