slaruv.f man page

slaruv.f

Synopsis

Functions/Subroutines

subroutine slaruv (ISEED, N, X)
SLARUV returns a vector of n random real numbers from a uniform distribution.

Function/Subroutine Documentation

subroutine slaruv (integer, dimension( 4 ) ISEED, integer N, real, dimension( n ) X)

SLARUV returns a vector of n random real numbers from a uniform distribution.  

Purpose:

 SLARUV returns a vector of n random real numbers from a uniform (0,1)
 distribution (n <= 128).

 This is an auxiliary routine called by SLARNV and CLARNV.
Parameters:

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. N <= 128.

X

          X is REAL array, dimension (N)
          The generated random numbers.
Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

December 2016

Further Details:

  This routine uses a multiplicative congruential method with modulus
  2**48 and multiplier 33952834046453 (see G.S.Fishman,
  'Multiplicative congruential random number generators with modulus
  2**b: an exhaustive analysis for b = 32 and a partial analysis for
  b = 48', Math. Comp. 189, pp 331-344, 1990).

  48-bit integers are stored in 4 integer array elements with 12 bits
  per element. Hence the routine is portable across machines with
  integers of 32 bits or more.

Definition at line 97 of file slaruv.f.

Author

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Referenced By

The man page slaruv(3) is an alias of slaruv.f(3).

Tue Nov 14 2017 Version 3.8.0 LAPACK