Returns a single pseudorandom number or an array of pseudorandom numbers from the uniform distribution over the range 0 \leq x < 1.
The runtime-library implements the xorshift1024* random number generator (RNG). This generator has a period of 2^{1024} - 1, and when using multiple threads up to 2^{512} threads can each generate 2^{512} random numbers before any aliasing occurs.
Note that in a multi-threaded program (e.g. using OpenMP directives), each thread will have its own random number state. For details of the seeding procedure, see the documentation for the RANDOM_SEED
intrinsic.
Fortran 95 and later
Subroutine
RANDOM_NUMBER(HARVEST)
HARVEST | Shall be a scalar or an array of type REAL . |
program test_random_number REAL :: r(5,5) CALL RANDOM_NUMBER(r) end program
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Licensed under the GNU Free Documentation License, Version 1.3.
https://gcc.gnu.org/onlinedocs/gcc-7.2.0/gfortran/RANDOM_005fNUMBER.html