### Today's Editor:

- Cleve Moler
- The MathWorks, Inc.
- moler@mathworks.com

- Patriot Missle Bug Report
- Why is Raphson in "Newton-Raphson"?
- Errata, Bibliography on Soviet Works
- PICL/ParaGraph Users
- CSRD Reports Available via E-mail and FTP
- Solving Least Squares Problems
- Help Request to LaTeXperts
- High Performance Computing in Japan
- Travel to Minnesota's IMA
- MATLAB Supplement for NUMERICAL METHODS
- Faculty Position at University of Wollongong
- SIAG/OPT Prize Nomination
- Book in Sinc Methods from SIAM

-------------------------------------------------------

From: David Keaton <dmk@dmk.com>

Date: Thu, 28 May 92 11:12 MDT

**Subject: Patriot Missle Bug Report**

A government report on the failure of the Patriot Missile is available.

The report is

Patriot Missile Defense: Software Problem Led to System Failure

at Dhahran, Saudi Arabia

It is report number GAO/IMTEC-92-26, dated February 1992.

The report is quite well done and includes pictures that show the

exact process used to track a Scud. It contains the level of

technical detail needed for us to understand what happened, yet

presents it so that a non-technical person has a fighting chance at

understanding it too.

The problem began to manifest itself as roundoff error, but the real

problem was precision error instead. They put the "real time since

boot" clock in a single precision floating point number. To calculate

a time interval, they took two snapshots of the clock and subtracted

them. When the system had been up for more than eight hours, the

absolute uptime started to get bigger than the mantissa and

calculations got less and less accurate. Eventually, the Patriot

would miss the window for tracking an incoming Scud.

The field fix was just to reboot the Patriots every eight hours

until a software fix arrived. However, the people manning the

Patriots didn't get the word.

The first copy of each GAO report is free. Additional copies are $2 each.

Orders may be placed by calling (202) 275-6241, or by mail to

U.S. General Accounting Office

P.O. Box 6015

Gaithersburg, MD 20877

Make checks or money orders payable to Superintendent of Documents.

David Keaton

dmk@dmk.com

------------------------------

From: Stephen Nash <snash@gmuvax.gmu.edu>

Date: 27 May 92 09:57:00 EST

**Subject: Why is Raphson in "Newton-Raphson"?**

I am trying to find out why Raphson's name is attached to the Newton-Raphson

method for finding solutions to nonlinear equations. I have in hand two

suggestions:

(a) Raphson translated Newton's notes on the topic (Newton wrote in Latin) and

published them in the English version of Newton's "Universal Arithmetic," and

in this way became associated with the method. (This would be analogous to

"Horner's Rule", "Taylor Series", and "MacLaurin Series", all of which can be

found in Newton's work.)

(b) A couple of people have told me that they thought Raphson had extended

Newton's work to problems in more than one variable. (I have not been able

to find any solid evidence to support this idea.)

I would be grateful if anyone could supply evidence that would settle this

question, or suggestions about alternative explanations.

Stephen Nash

George Mason University

snash@gmuvax.gmu.edu

------------------------------

From: Baker Kearfott <rbk5287@usl.edu>

Date: Wed, 27 May 92 09:56:23 CDT

**Subject: Errata, Bibliography on Soviet Works**

The entry in the last digest on the bibliography of papers by Soviet

authors on interval computations stated:

Alternatively, the first part of the bibliography appears in

vol. 1 issue 1 of "Interval Computations".

It should have been:

vol. 1 issue 2.

I apologize.

Baker Kearfott

rbk@usl.edu (Internet)

------------------------------

From: Diane Rover <rover@frith.egr.msu.edu>

Date: Wed, 27 May 92 16:04:51 -0400

**Subject: PICL/ParaGraph Users**

ATTENTION: PICL and/or ParaGraph software users

The use of PICL (Portable Instrumented Communication Library) and

ParaGraph has been spreading and, as users ourselves, we'd like to

document interesting applications of these tools. While we are

aware of a number of efforts, there are many unknown to us. For

all our benefit, we'd like to compile and maintain information on

users and uses.

We REQUEST a brief description of your use of PICL and/or ParaGraph.

Just fill in the form given below being as brief as possible. We

will distribute a summary of responses to all who contribute.

Please RESPOND BY June 22 to rover@ee.msu.edu with SUBJECT line

"PICL/ParaGraph Survey".

THANKS.

Diane T. Rover Joan M. Francioni

Dept. of Electrical Engineering Dept. of Computer Science

Michigan State Univ. Univ. of Southwestern Louisiana

rover@ee.msu.edu jf@cacs.usl.edu

(Use includes: SLALOM (Use involves auralization

benchmark program of PICL trace data coupled

visualization and custom with visualization.)

"machine views".)

Name(s):

Organization(s):

Email Contact:

Project Name (if any):

Use: (Check one)

__ As Is (from netlib)

__ Customized (i.e., did you change PICL/ParaGraph code?)

__ Both

If customized usage, can your version be made available for

external use?

Summary Description of Use and/or Customization

(couple of paragraphs is sufficient):

Publications (if any, describing above use):

Do we have permission to include your response in a summary?

------------------------------

From: Stratis Gallopoulos <stratis@csrd.uiuc.edu>

Date: Wed, 27 May 92 17:08:03 CDT

**Subject: CSRD Reports Available via E-mail and FTP**

Several recent technical reports from the

Center for Supercomputing Research and Development (CSRD)

are available in Postscript form and accessible using e-mail

or anonymous ftp. The depository is maintained on a regular basis.

Using netlib style e-mail:

mail CSRD_Info@csrd.uiuc.edu

TO OBTAIN MAIL BODY

list of abstracts send index from reports_abstracts

list of reports send index from reports

abstracts: send <report_number>.abs from reports_abstracts

reports: send <report_number> from reports

Using anonymous ftp:

ftp sp2.csrd.uiuc.edu

login as "anonymous" with any password.

cd CSRD_Info

(the net-address for sp2.csrd.uiuc.edu

is 128.174.162.51)

TO OBTAIN ACTION

list of abstracts: "cd reports" followed by "get index"

list of reports: "cd reports_abstracts" followed by "get index"

abstracts: "cd reports_abstracts" followed by

"get <report_number>.abs"

reports: "cd reports" followed by "get <report_number>"

------------------------------

From: Warren Ferguson <H5AR1001%SMUVM1.BITNET@RICEVM1.RICE.EDU>

Date: Wed, 27 May 92 18:56:24 CST

**Subject: Solving Least Squares Problems**

Does anyone know if the codes from Lawson and Hanson's book:

Solving Least Squares Problems, Prentice Hall, 1974

is available somewhere, say by anonymous ftp?

Warren Ferguson

ferguson@csvax.seas.smu.edu

------------------------------

From: Vu Quoc Loc <vql@mozart.aero.ufl.edu>

Date: Thu, 28 May 92 12:24:35 -0400

**Subject: Help Request to LaTeXperts**

To the LaTeXperts of na-net:

I recently began to use LaTeX, and have not figured out all the

intricacies of LaTeX. I would like to request your help with the

following matter.

The idea is to import a file (e.g., a Fortran code) into a LaTeX file

and to display it verbatim in the text output. However, I don't

want to import the Fortran code physically into the LaTeX file, but

rather use the LaTeX command \input to do the import. (This way

any modifications to the code will reflect automatically in the

text output without one having to modify the Fortran code in the

LaTeX file again.) My problem is that I cannot do this task using

the LaTeX command \verbatim (together with the \input command).

With TeX, I use the command \setupverbatim (together with the \input

command) as suggested in the command \listing on p. 380 of The

TeXbook:

\def\listing#1{\par\begingroup\setupverbatim\input#1 \endgroup}

I appreciate if you could let me know of an equivalent way to have

the command \setupverbatim working with LaTeX's documentstyle

report. (I know that there is \setupverbatim in tugboat.sty.)

Thank you,

Loc Vu-Quoc

------------------------------

From: Raul Mendez <mendez@isr.recruit.co.jp>

Date: Fri, 29 May 92 09:02:55 JST

**Subject: High Performance Computing in Japan**

In last week's NA-Digest, the publisher for High Performance Computing:

Research and Practice in Japan had been clipped out of the posting.

It should have read:

Edited by Raul Mendez

Publisher John Wiley and Sons

(Wiley Professional Computing)

January, 1992

ISBN 0 471 92867 4

------------------------------

From: Willard Miller <miller@imafs.ima.umn.edu>

Date: Fri, 29 May 92 14:30:24 CDT

**Subject: Travel to Minnesota's IMA**

ATTENTION TO ALL IMA TRAVELERS

If you are planning to attend any of the Institute For Mathematics and Its

Applications workshops; especially Environment: July 6-31, Mathematical

Modelling for Graduate Students August 3-28, the P.D. E. Summer Graduate

Program at Indiana University: July 13-August 7, or The Control Theory

Tutorial: Sept. 8-11, 1992, PLEASE TAKE ADVANTAGE OF THE 1/2 PRICE

AIRFARES. YOU WILL NEED TO BOOK YOUR FLIGHTS BY JUNE 5 AND USE THE TICKETS

BEFORE SEPTEMBER 13, 1992.

------------------------------

From: John Mathews <mathews@fullerton.edu>

Date: Sunday, 31 May 1992 06:25 PDT

**Subject: MATLAB Supplement for NUMERICAL METHODS**

For anyone who will be adopting my textbook

NUMERICAL METHODS:

for Mathematics, Science and Engineering,

2nd Edition, Prentice Hall, Inc. 1992

A complete MATLAB package of algorithms for

both the IBM-PC and Macintosh are available.

Contact me for information.

Please supply:

1. Your name.

2. Institutional affiliation.

3. Name of course and current textbook.

4. When you need the materials.

John Mathews

Prof. of Mathematics

Calif. State Univ. Fullerton

Fullerton, CA 92631

e-mail: mathews@fullerton.edu

------------------------------

From: Phil Broadbridge <pbroad@cc.uow.edu.au>

Date: Thu, 28 May 92 10:45:06 EST

**Subject: Faculty Position at University of Wollongong**

The Department of Mathematics, University of Wollongong, Australia, has a

vacancy for a numerical analyst or computational mathematician, to be available

from February 1993. The successful applicant will

(a) be willing to collaborate on applied and industrial research

projects and to develop his/her own specialist skills,

(b) take a leading role in the teaching of numerical analysis at both

undergraduate and graduate level,

and (c) have some familiarity with computer algebra packages.

The position will be tenurable and at the level of Lecturer or Senior Lecturer.

In exceptional circumstances, an offer may be made at the level of Associate

Professor. Salaries: Lecturer Aus $41000-48688, Snr. Lecturer $50225-57913,

Assoc. Prof. $60475-66625.

The Department has around 21 full time academic staff and supervises

undergraduate, masters and doctoral programmes. The main research interests are

in industrial and environmental mathematical modelling, partial differential

equations, harmonic analysis, logic and applied statistics. The department is

a member unit of the Faculty of Informatics, which particularly encourages

future collaborative work in the areas of Telecommunications and Robotics.

Initial inquiries should be made to Philip Broadbridge (61)(042) 213252, fax

(61)(042)214845, e-mail P.Broadbridge@uow.edu.au ,or

pbroad@wampyr.cc.uow.edu.au

------------------------------

From: SIAM <ddilisi@siam.org>

Date: Fri, 29 May 92 09:20:46 EST

**Subject: SIAG/OPT Prize Nomination**

CALL FOR NOMINATIONS

FOR

SIAM ACTIVITY GROUP ON OPTIMIZATION (SIAG/OPT) PRIZE

The SIAG/OPT Prize

The SIAG/OPT will present its first award at the SIAM Annual Meeting in

July 1993. The award is to be given to the author(s) of the most

outstanding paper, as determined by the prize committee, on a topic in

optimization published in English in a peer-reviewed journal.

Nominations

Nominations should include (1) a description of the significance of the

paper, ( 2) the important questions that have been resolved and/or

raised in the paper, (3) the applicatio ns of the work described in the

paper, and (4) a copy of the paper in English. Nominations sho uld be

received by no later than November 30, 1992 at the following address:

SIAG/OPT Prize

c/o SIAM

3600 University City Science Center

Philadelphia, PA 19104-2688

Eligibility

Candidate papers must be published in English in a peer-reviewed

journal bearing a publication date within the period from January 1,

1987 to December 31, 1991. The papers must contain significant

research contributions to the field of optimization, as commonly

defined in the mathematical literature, with direct or potential

applications.

Description of the Award

The award will consist of a plaque and a certificate containing the

citation. The chair of the prize committee will notify the

recipient(s) of the award in advance of the award date . An invitation

will be extended to the recipient(s) to attend the award ceremony to

receive the award and to present the paper. At least one of the

awardees is expected to attend the ceremony and present the winning

paper.

------------------------------

From: SIAM <bdilisi@siam.org>

Date: Wed, 27 May 92 11:15:43 EST

**Subject: Book in Sinc Methods from SIAM**

FORTHCOMING PUBLICATION FROM SIAM

Sinc Methods for Quadrature and Differential Equations

John Lund and Kenneth L. Bowers

Here is an elementary development of the Sinc-Galerkin method with

the focal point being ordinary and partial differential equations.

This is the first book to explain this powerful computational

method for treating differential equations. These methods are an

alternative to finite difference and finite element schemes, and

are especially adaptable to problems with singular solutions. The

text is written to facilitate easy implementation of the theory

into operating numerical code.

The authors' use of differential equations as a backdrop for the

presentation of the material allows them to present a number of the

applications of the sinc method. Many of these applications are

useful in numerical processes of interest quite independent of

differential equations. Specifically, numerical interpolation and

quadrature, while fundamental to the Galerkin development, are

useful in their own right.

The intimate connection between collocation and Galerkin for the

sinc basis is exposed via sinc-interpolation. The quadrature rules

define a class of numerical integration methods that complement

better known techniques, which in the case of singular integrands,

often require modification. The sinc methodology of the text is

illustrated on such applications as initial data recovery, heat

diffusion, advective-diffusive transport, and Burgers' equation, to

illustrate the numerical implementation of the theory discussed.

Engineers may find sinc methods a very competitive approach to the

more common boundary element or finite element methods. Further,

workers in the signal processing community may find this particular

approach a refreshingly different view of the use of sinc

functions.

Sinc approximation is a relatively new numerical technique. This

book provides a much needed elementary level explanation. It has

been used for graduate numerical classes at Montana State

University and Texas Tech University.

Contents

Chapter 1: Preliminary Material; Chapter 2: Numerical Methods on

the Real Line; Chapter 3: Numerical Methods

on an Arc "Gamma"; Chapter 4: The Sinc-Galerkin Method; Chapter 5:

Steady Problems; Chapter 6: Time-Dependent Problems; Appendix A:

Linear Algebra; References.

About the Authors

John Lund is professor of mathematics in the department of

mathematical sciences at Montana State University.

Kenneth L. Bowers is associate professor of mathematics in the

department of mathematical sciences at Montana State University.

Available July 1992 / x + 304 pages / Hardcover / ISBN

0-89871-298-X

List Price $42.50 / SIAM Member Price $34.00 / Order Code OT32

------------------------------

End of NA Digest

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