VMS Help FORTRAN, Intrinsic Procedures, MOD  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  MOD (dividend, divisor)

  A function that divides the first argument by the second and
  returns the remainder.
  +------+---------+----------+------------+-------------+
  | Args | Generic | Specific |  Argument  | Result Type |
  +------+---------+----------+------------+-------------+
  |  2   |  MOD    | IMOD     | INTEGER*2  | INTEGER*2   |
  |      |         | JMOD     | INTEGER*4  | INTEGER*4   |
  |      |         | AMOD     | REAL*4     | REAL*4      |
  |      |         | DMOD     | REAL*8     | REAL*8      |
  |      |         | QMOD     | REAL*16    | REAL*16     |
  +------+---------+----------+------------+-------------+