slaran.f - Man Page

TESTING/MATGEN/slaran.f

Synopsis

Functions/Subroutines

real function slaran (iseed)
SLARAN

Function/Subroutine Documentation

real function slaran (integer, dimension( 4 ) iseed)

SLARAN

Purpose:

 SLARAN returns a random real number from a uniform (0,1)
 distribution.
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.
Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

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 66 of file slaran.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

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

Tue Nov 28 2023 12:08:43 Version 3.12.0 LAPACK