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Dear Bill,
I wonder why you so insistently repeat your P.S. question. It
causes confusion. I answered this question repeatedly. See for
instance the sections "Long interval and long real arithmetic"
with applications and other applications in my book.
The main reason certainly is that the simplest and fastest way
computing a correctly rounded dot product is via the EDP. If this
would be supported by hardware it would bring a tremendeous speed
up for interval computations. Hardware for the EDP needs less
silicon than an adder tree for fast multiplication what is
standard technology since the 1960ies..
With best regards
Ulrich
Am 14.10.2013 19:40, schrieb G. William (Bill) Walster:
Dear Ulrich,
Of course, you can do what you choose to do.
However, I believe that you can make valuable contributions to
the P1788 effort even if EDP is not included.
P1788 is not even close to what I believe it should be.
Nevertheless, my firm belief is that computing with intervals is
the answer to James Wilkinson’s Turing Lecture 1970, J. ACM 18
(1971)
plea for numerical analysis to have its rightful place
influencing the design of computer hardware. Therefore I remain
compelled to continue fighting for the "new order of things" I
believe must come.
Please reconsider.
Sincerely,
Bill
P. S.: And then consider addressing my question about how EDP
can be used to improve interval computations in which most
inputs are only accurate to a hand full or two of decimal
digits. Your steam turbine example is perfect for this purpose.
On 10/13/13 8:45 PM, Kreinovich, Vladik wrote:
Me too, I also agree that your active contribution has always been extremely valuable
________________________________________
From: stds-1788@xxxxxxxx [stds-1788@xxxxxxxx] on behalf of Ralph Baker Kearfott [rbk5287@xxxxxxxxxxxxx]
Sent: Sunday, October 13, 2013 5:00 PM
To: Corliss, George; Ulrich Kulisch
Cc: stds-1788
Subject: Re: withdrawal
Prof. Kulisch,
I also urge you to reconsider, for the same reasons as George.
Baker
On 10/13/2013 04:44 PM, Corliss, George wrote:
Dear Prof. Kulisch,
I am VERY sorry to see you take this step, and I ask you to reconsider.
You have contributed MUCH to the field of interval analysis, and you
have much yet to contribute.
George Corliss
George.Corliss@xxxxxxxxxxxxx <mailto:George.Corliss@xxxxxxxxxxxxx>
On Oct 13, 2013, at 2:28 PM, Ulrich Kulisch <ulrich.kulisch@xxxxxxx
<mailto:ulrich.kulisch@xxxxxxx>> wrote:
Dear colleagues:
I withdraw myself from P1788. If you like, see the attached letter and
the two attachments.
With best regards
Ulrich Kulisch
--
Karlsruher Institut für Technologie (KIT)
Institut für Angewandte und Numerische Mathematik
D-76128 Karlsruhe, Germany
Prof. Ulrich Kulisch
Telefon: +49 721 608-42680
Fax: +49 721 608-46679
E-Mail:ulrich.kulisch@xxxxxxx
www.kit.edu
www.math.kit.edu/ianm2/~kulisch/
KIT - Universität des Landes Baden-Württemberg
und nationales Großforschungszentrum in der
Helmholtz-Gesellschaft
<withdrawal.pdf><PredefinedOperators.doc><LettersIEEE754R1.pdf>
--
---------------------------------------------------------------
R. Baker Kearfott, rbk@xxxxxxxxxxxxx (337) 482-5346 (fax)
(337) 482-5270 (work) (337) 993-1827 (home)
URL: http://interval.louisiana.edu/kearfott.html
Department of Mathematics, University of Louisiana at Lafayette
(Room 217 Maxim D. Doucet Hall, 1403 Johnston Street)
Box 4-1010, Lafayette, LA 70504-1010, USA
---------------------------------------------------------------
--
Karlsruher Institut für Technologie (KIT)
Institut für Angewandte und Numerische Mathematik
D-76128 Karlsruhe, Germany
Prof. Ulrich Kulisch
Telefon: +49 721 608-42680
Fax: +49 721 608-46679
E-Mail: ulrich.kulisch@xxxxxxx
www.kit.edu
www.math.kit.edu/ianm2/~kulisch/
KIT - Universität des Landes Baden-Württemberg
und nationales Großforschungszentrum in der
Helmholtz-Gesellschaft
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