Section 8,5,4: Relational

 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.