GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 4.8 |
i386 |
 |
slarnv(l) |
 |
SLARNV - return a vector of n random real numbers from a uniform or normal distribution
|
SUBROUTINE SLARNV( |
IDIST, ISEED, N, X ) |
|||
|
INTEGER |
IDIST, N |
|||
|
INTEGER |
ISEED( 4 ) |
|||
|
REAL |
X( * ) |
SLARNV returns a vector of n random real numbers from a uniform or normal distribution.
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.
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(l) | |