VMS Help FORTRAN, Data, Expressions, Relational  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Relational expressions consist of either two arithmetic or two
  character expressions separated by relational operators.  The
  expression is reduced to a logical value (true or false).

        OPERATOR      DESCRIPTION
         .LT.          Less than
         .LE.          Less than or equal to
         .EQ.          Equal to
         .NE.          Not equal to
         .GT.          Greater than
         .GE.          Greater than or equal to

  Expressions of COMPLEX data type can use only .EQ. and .NE.
  operators.