# slaruv.f - Man Page

SRC/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. Ā

**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.

**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 **94** of file **slaruv.f**.

## Author

Generated automatically by Doxygen for LAPACK from the source code.

## Referenced By

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

Tue Nov 28 2023 12:08:42 Version 3.12.0 LAPACK