VMS Help RTL Routines, MTH$, MTH$HLOG10, Arguments  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 h-log10

    OpenVMS usage:floating_point
    type:         H_floating
    access:       write only
    mechanism:    by reference

    Common logarithm of the input value specified by floating-point-
    input-value. The h-log10 argument is the address of an H-floating
    number that is this common logarithm. MTH$HLOG10 writes the
    address of the common logarithm into h-log10.

 floating-point-input-value

    OpenVMS usage:floating_point
    type:         H_floating
    access:       read only
    mechanism:    by reference

    The input value. The floating-point-input-value argument is the
    address of a floating-point number. For MTH$HLOG10, floating-
    point-input-value specifies an H-floating number.