D-floating-point-base

    OpenVMS usage:floating_point
    type:         D_floating
    access:       read only
    mechanism:    by value

    Base. The D-floating-point-base argument is a D-floating number
    containing the base.

 F-floating-point-exponent

    OpenVMS usage:floating_point
    type:         F_floating
    access:       read only
    mechanism:    by value

    Exponent. The F-floating-point-exponent argument is an F-floating
    number that contains the exponent.