slarnv.f (3) - Linux Man Pages
subroutine slarnv (integerIDIST, integer, dimension( 4 )ISEED, integerN, real, dimension( * )X)
SLARNV returns a vector of random numbers from a uniform or normal distribution.
SLARNV returns a vector of n random real numbers from a uniform or normal distribution.
IDIST is INTEGER Specifies the distribution of the random numbers: = 1: uniform (0,1) = 2: uniform (-1,1) = 3: normal (0,1)
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 is INTEGER The number of random numbers to be generated.
X is REAL array, dimension (N) The generated random numbers.
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
- September 2012
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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