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C Library Functions  - mtprng_rand_real2 (3)

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NAME

mtprng_rand_real2(3f) - [M_random:MERSENNE TWISTER] Obtain a pseudo-random real number in the range [0,<1) (LICENSE:CUSTOM OPEN)

CONTENTS

Synopsis
Description
Options
Returns
Examples

SYNOPSIS

function mtprng_rand_real2(state) result(r)

     type(mtprng_state), intent(inout) :: state
     real(IEEE64)                      :: r

DESCRIPTION

Obtain a pseudo-random real number in the range [0,1), i.e., a number greater than or equal to 0 and less than 1.

OPTIONS

state	generator state initialized by mtprng_init(3f) or mtprng_init_array(3f)

RETURNS

r	pseudo-random value in the range [0,<1)

EXAMPLES

Sample program:

   program demo_mtprng_real2
   use M_random, only : mtprng_state, mtprng_init, mtprng_rand_real2
   use, intrinsic :: iso_fortran_env, only : int32
   implicit none
   integer(INT32)     :: seed
   type(mtprng_state) :: state
     GET_SEED: block
     integer :: count
     integer :: count_rate
        call system_clock(count, count_rate)
        seed = count
     endblock GET_SEED
     call mtprng_init(seed, state)
     ! returns a IEEE64 real, may be used as double precision
     write(*,*) mtprng_rand_real2(state)
   end program demo_mtprng_real2

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Nemo Release 3.1

mtprng_rand_real2 (3)

June 29, 2025

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