[Cfp-interest 2002] Re: AI about IEC 60559 binding

[Paul Zimmermann]

       Jim,

> The math functions as specified in F3/F10 are not the IEC 60559 recommended
> mathematical operations. I think the new text makes that clear.

it could be clearer. For example the new text has title "IEC 60559 bindings"
which makes me think that it covers IEC 60559 functions. And in note [20]:
"The C functions in the following table correspond to mathematical operations
recommended by IEC 60559". Here, "correspond" could be interpreted as
"binding". I suggest changing to "The C functions in the following table
provide approximations of mathematical operations recommended by IEC 60559",
and maybe another sentence about the cr_ functions as you write below.

> The F3/F10
> math functions do correspond to the IECC 60559 operations in the sense of
> providing approximations to the same mathematical functions and handing
> special cases the same way (to the extent possible without correct
> rounding). An implementation can provide the IEC 60559 operations as C
> functions with the cr_ prefix.
> 
> This was a design decision made in consideration of implementation
> practicality and general user needs (as seen by CFP).

Best regards,
Paul