[r6rs-discuss] [Formal] Clarification of chapter 1 overview bits re: exactness and complex numbers

From: Michael Sperber <sperber>
Date: Thu Jan 25 09:58:13 2007

"Jeff Read" <bitwize_at_gmail.com> writes:

> On page 6, in the introductory material of Chapter 1 dealing with
> arithmetic, is the following:
>
> "Scheme distinguishes between exact arithmetic, which corresponds to
> the mathematical ideal, and inexact arithmetic on approximations.
> Exact arithmetic includes arithmetic on integers, rationals, and
> complex numbers."
>
> The second sentence in the above passage is ambiguous, and a casual
> reading suggests to the reader that all arithmetic on integers,
> rationals, and complex numbers is exact.

I've replaced this by

"Scheme implementations support exact arithmetic on at least integers
and rationals."

(The report doesn't really mandate exact complex numbers anymore as of
the 5.92 draft.)

Hope this is OK. Thanks for the comment!

-- 
Cheers =8-} Mike
Friede, V?lkerverst?ndigung und ?berhaupt blabla
Received on Thu Jan 25 2007 - 09:58:07 UTC

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