![]() |
LAPACK
3.5.0
LAPACK: Linear Algebra PACKage
|
Go to the source code of this file.
Functions/Subroutines | |
double precision function | dlarnd (IDIST, ISEED) |
DLARND More... | |
double precision function dlarnd | ( | integer | IDIST, |
integer, dimension( 4 ) | ISEED | ||
) |
DLARND
DLARND returns a random real number from a uniform or normal distribution.
[in] | IDIST | IDIST is INTEGER Specifies the distribution of the random numbers: = 1: uniform (0,1) = 2: uniform (-1,1) = 3: normal (0,1) |
[in,out] | 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. |
This routine calls the auxiliary routine DLARAN to generate a random real number from a uniform (0,1) distribution. The Box-Muller method is used to transform numbers from a uniform to a normal distribution.
Definition at line 75 of file dlarnd.f.