Function:     IRAN

Purpose:      Generating random integer.

Files:        iran.f

Author:       F.J. Sicking

Category:     MATH

Use:          INTEGER IRAN( iseed  ,   Input  INTEGER
                                     )

              IRAN  Returns a random integer from the interval [0,2^24>.

              ISEED   Seed for the random number generator. Should be
                      negative on initialization !!!!

Description:
              Drawn from numerical recipes. (Knuth)

Updates:      Aug 4, 1994: FJS, Document created.