random(3F)

NAME
     - generate pseudorandom numbers from a seed

SYNOPSIS
     random_number (harvest)

     random_seed( size, put, get)

DESCRIPTION
     The Fortran 90 subroutine random_number returns a sequence of
     pseudorandom numbers in harvest. The argument must be of real type and of
     intent out.  It can be a scalar or an array variable, and is set to
     contain pseudorandom numbers from a uniform distribution in the range
     greater than or equal to zero and less than one.

     The random_seed subroutine allows an inquiry to be made about the size or
     value of the seed array, and also allows the seed to be reset. Its
     optional arguments have the following form:

     size    if present, must be scalar and of default integer type.  It is
             set to the number n of integers used to hold the seed.

     put     if present, must be an integer array of rank one and size greater
             than or equal to n.  It is used to set the seed value.

     get     if present, must be an integer array of rank one and size greater
             than or equal to n.  It is set by default to the current value of
             the seed.