I appreciate the many comments and suggestions that
I have received over the years, and I invite your response to
these free materials. If you find them useful, please
drop me a note.
Your note may encourage additional effort on my part,
let me know that my efforts are not in vain, and will
brighten my day. For some ideas about feedback click
here.
We have received many e-mails regarding this
site, the Excel add-ins and the book, and testimonials
from some are repeated on this page.
4/15/09: (Student in Istanbul Turkey) The instructors
were shocked when I have told them that you have answered
my mail. From thousand miles away you have taught
them how to be an instructor in real. Thanks for your
kindness as a person and your help as an instructor.
3/3/09: (Lecturer at a university in Greece)
I am using your excellent Excel add-ins in my courses
(Revision date: February 21, 2008) but I get some errors
in Windows Vista (with Excel 2007). Could you please
send me the source code? I will return suggested fixes.
Answer: The password in this on the Source
Code page. Please tell me of any errors you find.
2/27/09: I keep getting an error message (freeze pane "window
failed") on my mac when I try to run linear/integer
with the OR_MM program. Is this program mac compatible? Answer:
Yes it is Mac compatible. On the view page of
the Excel Preferences, change the default open page to
Normal.
1/28/09: An analyst of telecommunication data. I
was looking at ways to improve my 5-year forecasts
when I ran across your macro online. First of all,
you're either a genius or insane (or both), but I can't
even tell you how awesome I think you are if I'm understanding
how to use this XL add-in properly! I hope it's OK
for non-students to use it. Answer: The add-ins are
free for all to use.
1/2/09: I am from Venezuela.I hold an PhD in statistics
and also I am the academic director of risk and insurance
diploma at Catholic University in Caracas Venezuela.
I would like to donwloading the
whole package because I consider it of high pedagogical
value.Many books that explain basics in a way very
complicated (black boxes). On the contrary your explanantions
are totally clean, clear, simple, in a word outstanding.
12/14/08: I’m a long time admirer of your research,
work, and books. I have independently taken on the
studies of operations research simply as a hobby, and
use it throughout my military service to keep my mind
motivated and constantly in a learning mode. For months
now I have been using your Excel add-ins to practice
practical application in operations research for military
application and elsewhere.
11/28/08: Is there a way to overcome the spreadsheet
number of colums limit I think 256. I understand that
we may use the MPS format; do you have a conveter
to MPS that works on VBA Excel. Answer: The LP/IP Solver
takes models that are created in the Math Programming
add-in. The models are limited by the number of columns
of Excel. That's probably sufficient for most student
problems, but Excel 2007 has a much greater number
of columns. For a very large problem, it's better to
use a commercial solver.
9/4/2008: A student in Industrial Engineering: I was
very interested in your research in facility layout
software esspecially in Excel program. I was in the
last semester in Industrial engineering faculty and
want to make my last project to complete my degree.
I want to expand in your excel program. Message goes
on about using quadratic programming for facility layout.
7/23/08: Love your ORMM site and Excel plug-ins. My
colleague and I have been steadily moving through your
tutorials and wealth of information relating to dynamic
programming. We are currently reviewing the knapsack
and investment teaching spreadsheets. Message goes on
about modifying VBA code.
6/16/08: PhD student from France: I have
advanced with my model comprising finally of 1050 variables
and 350 integer variables with 541 constraints. I know
it will take more time but instead of solving I am
geting an error. Note: We are working to correct the
error.
6/12/08: PhD student from France: I most
appreciate Benders algorithm which was previously very
difficult for my Thesis Supervisor :) now is no more
difficult but is the easiest part and I must congratulate
you for launching algorithm with demonstrated example.
I am really amazed and happy to see your efforts for
the contribution of knowledge openly shared for further
refinement. Note: The Benders'
algorithm is part of the
TeachIP
add-in.
5/20/08: Manager of Sales and Marketing at a wine
distribution company: I just wanted to complement
you on your site. I had an OR class as an under grad
at SFSU and knew it would apply to a problem I'm currently
working on at work. Your site is clear, easy to use
and concise. Thank you for doing complete work and
sharing it with the world.
5/20/08: I am a math teacher in China. I have used
your excel add in to teach OR several times. It helps
a lot. I wonder if it is possible to have your permission
to translate the add ins into Chinese so it will be
easier for Chinese students. Please accept my appreciation
for your nice work. Answer: Yes.
5/14/08: Professor from California: You have done
amazing work in OR/QBA, Paul and I will always hold
you in high regard.
5/1/08: I’ve been looking at your site and trying
to utilize the above (Optimize and Combinatorics) add-ins.
It’s all very
interesting stuff. Thanks for the detail on your
site – it’s excellent.
4/21/08: PhD student studying stochastic modeling
of hurricanes. I came across your hurricane workbook.
While reading it you cite a two stage Markov process
by Will Lesso. His model seems like it would integrate
well with what I am working on.
4/19/08: I work for a liquor wholesaler and our trucks
carry products to all parts of Texas. I think
you are on the right track with your Excel program
(Vehicle
Routing Excel Module) and it could have a
bright future as the price of diesel and gasoline continue
to rise.
3/14/08: I'd like to thank you for making your Excel
add-ons available online. I'm starting to pair your
Transportation models with some heavy simulations and
so far I am getting excellent results.
5/28/08: Belgium Engineering Firm: We wanted to use
your solver for rather large LP problems in our research
projects. Could you please
tell me how the full power of the solver can be unleashed?
Is number of variables as well as constraints unlimited?
Answer: There are no limiting dimensions in the LP/IP
add-in but there may be memory problems with large
problems. The program has not been tested for large
problems.
1/28/08: MBA Student: Keep up the good work, these
add-ins are great tools for students learning OR/OM/IE!
12/14/08: My background is in Industrial Engineering
from Ohio State University. Wish I would have had a
professor who had developed tools like this for students.
When working at UPS I developed an Excel Application
for Inbounding trailers and tracking arrival times
to better forecast optimal door rotations. Your plugins
probably would have helped me arrive at a better solution
much faster. Again I appreciate your work and making
it available to others.
12/10/08: Sales Manager from a distribution company:
I must say I am grateful for your Excel plugin. I have
been trying to develop a TSP solution using MS EXCEL,
however Excel Solver seems to be very poor at solving
routing and TSP problems. I am really trying to create
a logistics software for my small business where we
run 3-4 trucks and expect to grow. I do not have the
time to plan myself and need a simple tool that will
provide a reasonable/feasible solution. I would love
to partner up in developing an application that is
affordable and scalable. Currently good logistics software
runs $10K+ and that is just a little too much of an
investment for me and my 4 trucks. Again your plugins
have been of great help. Note: This communication led
to the development of the Vehicle
Routing add-in.
12/4/07: Professor from Brazil: The Teach ORMM Instructor's
Resource CD-ROM (0-471-42690-3, 2003) works fine.
All resources are very good and the flash demos and
excel files (Methods) are very instructive. Note: Book
supporting material is distributed by Wiley through
the internet. See the student and instructor support
pages at this site.
11/21/07: Engineer from Greece: I found your pages
in Internet while trying to find a way to get the CRAFT program (or other similar ones e.g. CORELAP). Could
you please help me find the software? How could I possibly
buy it? Answer: The software is free download it from
the OM/IE add-in page.
11/19/07: Student from Bogotá, Colombia: I
am a student of Industrial Engineering in Colombia,
and I am greatly benefiting from your book, "Operation
Research Models and Methods".
10/12/07: I'm a systems analyst with the City of Chesapeake
and I was rummaging thru some OR sites and came upon
yours. Is there a price for downloading these files?
You mentioned
a book as being something that fills in the holes etc.
Being a math major I'm always interested in applying
the art when ever possible. Answer: The files are free.
9/6/07: The same IT Manager as the next message: There
seems to be a plethora of applications pertaining to
project management out there. However, very few are
all inclusive such as yours (Project
Management add-in).
What I liked about yours is the fact that:
1. It is all inclusive. 2. It’s
raw (i.e., nothing pretty or fancy GUI) 3. Zero memory
hog!
9/5/07: An IT Manager at a company: Hats off to you
for an awesome (Project
Management) add-in?! Thank
you for your hard work and allowing the population
to use it. Keep up the GREAT work! I do have one question.
Can I or anyone else using your add-ins down load the
instructions for using it. I have noticed the DEMO
page and the ability to view the instructions on-line
however, is there a place where I can down load the
instructions for off-line use. (Answer: There is no
off-line documentation, but if anyone wants to produce
a document from any of the add-ins, send it to me and
I'll publish it. Documents in non-English languages
are also welcome.)
8/9/07: A Professor of QM: I discovered Professor
Jensen’s web
wonderful site about three years ago and have been
recommending it to my students ever since. The two
modules I use most are Project
Management and Linear
Programming. The LP model is the easiest to use and
most user friendly program I have ever found for LP.
The Project Management module is amazing because of
its graphic capabilities as well as its ease of use.
8/7/07: I have just downloaded the MRP
add in and
I wanted to congatulate you for this good job. My question
is about the limited number of MPS and number of parts
that we can use. Answer: I don't think there are built
in restrictions. Try a large number and see what the
program says. If that doesn't solve your problem, you
can look at the code. The password is ppp.
6/14/07: I work in managing contact center operations,
and have been active in modeling both phone-oriented
as well as non-phone (paper and workflow) processes.
I have found the ORMM site very helpful, and have purchased
the Jensen/Bard book, which has been great in introducing
me to several OR techniques.
5/27/07: A chief engineer speaking about Second Life
classroom: I think this site has tremendous potential
for learning OR....I think excerpts from lectures....like
the type Richard Feynman used to give to his students...would
go a long way. I think the site itself is extremely
intriguing with respect to interactive learning. Note:
The Second Life classroom has been discontinued.
5/21/07: A message from Second Life: This place
Rocks! Thanks for making SL a better place.
4/4/07: A Navy Planner: Thank you for your
wonderful website. I'm exploring tool options for helping
to look at the service pilot training pipeline, as
a "production" process;
dynamic cycle times, delay, rework, waste, WIP, with
multi-site (geographic), multi-pipeline tracks. Have
downloaded some of your add-ins with which to play. Note:
The Process
Flow add-in is relevant to these problems.
3/12/07: A professor from Pittsburgh: I was wondering
if you had further documentation that I could obtain
related to your CRAFT
Add-in for Excel? I think it
is a great tool and am planning to use it in my facility
layout class. Answer: The only documentation is on-line.
3/7/07: As I bring up your various spreadsheets and
realize the opportunity they provide to learn how these
various techniques work and letting us novices see
real good VBA programming [ which has always seemed
a mystery ] and just come away with a sense of deep
gratitude for your generosity and desire that more
folks and students understand Operations Research.
It's not often that someone make available "real" stuff.
I wish I had these resources when I had Operations
Research back in the early 1980's. As I approach my
59th birthday, this is great stuff to keep the brain "tuned
up" because at this point in time work has become
quite routine and too predictable.
2/20/07: A professor from San Antonio Texas: I tried
your PNG (Production
Control Game) and it worked fine.
I wonder if the user is also able to specify the distribution
of the demand. (Answer: Yes all game parameters may
be changed.)
2/20/07: A former student from California: When I
received my MBA in 1983, I had to take an entire semester
of Operations Research. Just going through your book
I can see a world of difference.
2/20/07: A production planner from Zimbabwe: I so
happen to have come across your Materials Requirements
Planning work sheet and it has made my work very easy
and much more interesting.
2/16/07: An MS OR Grad from Virginia: I have not
worked in the field for many years. However, I appreciate
the value of the tools and methods and am looking for
a possible solution to a transportation-type problem.
I was impressed with your web site and the Excel tools
you have built, and I hope they can be applied to my
need.
2/16/07: A teaching assistant from Puerto Rico: I
am the teacher assistant in a class of production planning
and control. I use your Excel add-in (mrp.xla) to teach
the students about material requirement planning. I
want to know if you can give me the password of it
so I can modify it only for academic purpose. (Answer:
The password is in the About Add-ins section.)
2/7/07: A practitioner from Missouri: As to whether
or not the add-ins are helpful. Oh, man, they are wonderful!
I haven’t done any OR work since college some
twenty-odd years ago. The add-ins and your very informative
website made it possible for me to get a model setup
and solution found in a very short time.
1/24/07: A professor from Oklahoma: What would I need
to do to use some of these applications in my classes
other than referencing the origins? They look very
well though out and appear to be a great teaching aid.
(Answer: Feel free to use them.)
1/16/07: A MSC Graduate from Pakistan: I am from Pakistan.
I have done MSC in Operations Research and I find this
site very useful and handy. I am promoting your website
to the students of operations research, Industrial
engineers, operations management, manufacturing engineering
etc.
12/14/06: A Junior College Professor from Massachusetts:
My students are going to enjoy using software that
does not require a Doctorate to figure out.
10/19/06: A Research Associate from Calgary Canada:
Thank you so much for your website and all the excel
models you have on your website. It is such a help
to me in my work.
10/3/06: A Teaching Assistant in Iran: Today I found
ORMM site. It made me so excited, because I found
it so useful for OR learners. I am going to introduce
this website to Integer Programming and decision making
students.
5/5/06: Bank Vice President from Boston, Mass.: I
Googled my way to the ORMM site and was blown away
by the wealth of material. What are the terms (if any)
under which I could use some of the add-ins as part
of an in-house tool I am developing for people in my
group? Answer: You are welcome to use them as you will.
I appreciate credit on any published material. I am
available for consulting involving modifications or
application of the add-ins.
5/3/06: Professor from Colombia: I teach OR for engineering
students at this university. We found your add-ins
very useful so we are planning to translate the code
for the programs to run in full spanish version. Answer:
I hope you will put the spanish versions on the web.
I would be glad to link to them.
4/21/06: CFA from Virginia: Thank you for
the valuable site! On a scale of 1 to 10 I am a 5 level
VBA "expert." Your
site is a gift.
3/17/06: We are 4th year M. sc. in Computer Application
and I. T. students from India. We are thanking you
for providing such useful plug ins for O.R. problem
solving in Excel. I found them so impressive that I
couldn't stop myself from sending you this mail, thank
you again. You have provided all this as accessible
to every one is the most important thing.
3/15/06: Former student: I've been digging through
boxes looking for my OR notes (in your classes) from
17 years ago as an undergrad at UT. Couldn't believe
my good fortune to find this wonderful website. You
see, I am wrestling with a business problem that I
know can be solved using a network program -- thanks
for providing the tools (in EXCEL!) that will make
short work of this!
3/2/06: Professor from the Netherlands: I am considering
to use your book Operations Models and Methods for
a senior undergraduate course next semester for students
in applied mathematics and computer science at the
Vrije University in Amsterdam.Your book is a great
book. I wonder whether a solutions manual is available
for instructors adopting the book. Answer: There is
an instructor's CD available from Wiley, ISBN 0471426903.
2/12/06: Student from Amsterdam, Holland: During my
search for a easy way to create a lot of MRP's I came
across your perfectly working Excel Add-in.
1/28/06: Prof.
David Morton from the University of Texas: My students
use Paul Jensen's Add-Ins for topics ranging from optimization
to simulation and stochastic processes. The Add-Ins
are remarkably easy to use, allowing students to focus
on problem-solving insights rather than cryptic software
constructs.
1/25/06: A student from Texas: I just wanted to let
you know how much I've enjoyed using your ORMM Excel
add-ins. I have found the random variant generation
and simulation one especially useful, since it gives
you a quick and easy way to generate/simulate virtually
every type of random variable under the sun.
1/05/06:
A practitioner from Zimbabwe: I saw a lot of interesting
information on your website, and thus decided to join
the club in order to get access to the information.
12/24/05: Business student in London: My final year
project (Dissertation) requires the construction of
a Dynamic Programming model, and I came upon your site
while Googling to find an Excel add-in that will help
me with this.
12/13/05: A practitioner from Stockholm: I found your
excellent Excel add-ins for optimization on the web.
What are the terms for usage? Can it be used for commercial
purposes, and in that case what there license/fees
involved? Answer: The add-in use is not restricted.
I would appreciated recognition in any publications
or any applications produced.
11/23/05: A practitioner from U.S.: you helped me
out about 2 or so years ago when I was working at ...
. Back then we did not have a formal ERP or MRP system
in place, and I used this Excel add-in to help me out
with material planning.
11/18/05: A government analyst in the U.S.: I downloaded
the Jensen.lib WinZip and installed it. It worked like
a charm this time. I am so excited about using the
ORMM tools. Thanks so much for your time and valuable
assistance.
10/22/05: A secondary
school math teacher from Portugal: I have developed
several worksheets in Excel to help myself to understand
the Theory of Graphs. I have searched Internet for
the same approach and I found your site. Your cool
programs for Excel were downloaded.
10/17/05: A friend that has XP setup the addin files
the exact same way that I set them up on my computer
and every single addin worked fine.
10/16/05: A PHD Student: I have been very
pleased with some of the models that you have published
on your web site and I especially use the Linear Programming
with the integer solution option.
10/16/05: A professor:
I'd been following your site these past years, and
I'm impressed. I'm presently on Sabbatical Leave form
my teaching appointment, and would be back next term.
More power to you!
9/12/05: A Texas student working the simulation feature
of the Random Variables add-in: I was in need of some
tools for doing random variable and simulation of some
spreadsheets (for projects in all three of our courses
this semester: Finance, Operations Management, and
Marketing). This has been great, very useful without
all the overhead I remember from @RISK.
8/24/05: I was visiting your incredible Operations
Research web site. Amazing!
8/22/05: A professor from Nebraska: I'm using your
book for my OR course this fall. I like your approach
and am particularly excited about exploring your Excel
add-ins. I was moving in that direction myself even
before I found your book, so I'm delighted that all
this material is available.
8/18/05: A professor from Denmark: I am an associate
professor from Denmark who are in the process of preparing
an undergraduate course in "Introduction to Operations
and Supply Chain Management" for autumn 2005.
I am very impressed by the collection of excel/VBA
add-ins at your site and i would like to use some of
the modules to illustrate to my students some of the
more quantitative aspects of OR. I plan to write a
short introduction in Danish on how to get the add-ins
from your site and how to activate the add-ins within
excel.
Thanks for letting my students "look behind" the
addins using the password. I am sure that the students
interested in VBA will benefit (and we do have a small
group that are pretty exited about the VAB/EXCEL possibilities).
7/20/05: Excel/VBA developer: Found your
very interesting site. My son just graduated with a
major in economics and finance and a minor in math.
I have been trying to get him interested in operation
research. Your site may help me to accomplish this
aim.
7/14/05: A professor from the Azores, Portugal: I'm
responsible for a decision support course in Azores
University and the first (and simpler) “systems” we
work are based on Excel analysis. You
have made this an easier task.
6/25/05:A student from China: I have been busy with
my paper in the last several months. I finished my
dissertation and obtained a MD degree. Your add-ins
help me a lot with my study on OR. And more Chinese
student will benefit from your add-ins.
6/14/05: An Industrial Engineering student from
India: Recently I came across your site and got hooked
to it. It is so content rich & easy to navigate.
It is proving to be the panacea for all my OR queries.
I am going to buy the book soon. Please tell if I could
be of any help in this noble project.
5/27/05: Great add-ins. Thanks for allowing people
like me who are trying to teach themselves OR and how
to implement it in VB to access your code.
5/14/05: I have graduated from
Industrial engineering from Eastern Mediterranean University,Cyprus.
First of all, I would like to thank you to gain us
this valuable
web site. Because I have cleared the subjects
in my mind that not understood in my study.
4/20/05: Professor from Colorado: A couple of years
ago, a former masters student of mine, and I used your
network solver for our Career Field Designation Problem
-- a model that the Army is using to assign Army officers
to career fields (to appear in Interfaces). I now have
a shortest path model to place a feeder in an aggregate
(sand and gravel) mine and would like to again use
your network solver to solve
models that contain about 100 nodes and 5000 arcs. Would it be possible to obtain
an unlocked version of your network solver?
Later: I went ahead and ran about 12 scenarios
with your large
network solver and compared both the objective function
values and
solutions against what I obtained with AMPL/CPLEX.
All matched exactly.
8/27/04:
Please add me to your email list, and thanks for some
many useful resources! ... Well, I just bought your
book online... the clincher was that you gave out the
password
to access the VBA
in your add-ins.
8/21/04: I am a graduate student for MD of Management
School of Tian Jin University of China. I find your
website by Google. And then I download many add-ins
from your website. They really do me very much in OR
and OM/IE. Before this it is difficult to study OR
by computer for me, for
many of us. Maybe I am the first one who use your excel
add-in in my school .I will try my best to introduce
your website
to my colleagues as many as possible. I should say "thank
you very much" to you
and your website.
8/11/04: I'm a MBA student from Wharton working on
a class project for eBay on creating a markov model
of site. I came across your excel plug in on the
web and I am extremely pleased with what I'm able to
do
with it. It is simply amazing.
7/21/04: An Engineer from Dallas: I just wanted to
say thank you for all the work you have done with your
add-ins
and
your
site.
You have
single-handedly made me want to pursue my PHD in ORM
.I use your add-ins constantly in my work and make
sure
my colleagues know about them. On any new computer
installation I have it is one of the first enhancements
of a base system I perform.
7/16/04: 21,000 visits to the main page since 7/22/03.
7/12/04: From Portugal: Congratulations for your excellent
site and for the information you are supplying free
of charge.
7/7/04: Karel de Grote-Hogeschool vzw, Antwerpen, BE:
Just thought I'd let you know: I tried the addins out
in Office 2003 (Windows Xp) and they work perfectly.
Specifically I ran Forecasting, Inventory and Materials
Requirement Planning.
From a book review in Interfaces,
Vol. 34, No. 3, May-June 2004.
Reviewed by John W. Fowler
Department of Industrial Engineering, Arizona State
University
"I think this book is extremely well done and
the supplementary materials do a great job of complementing
(not repeating) the physical text. Having taught undergraduate
and first-year graduate industrial-engineering students
as well as MBA students, I think this book and the
supplementary materials will meet the needs of the
intended audiences. ... The separation of models and
methods makes the book versatile and makes it a great
reference text because one often needs help in formulating
a problem or in solving it but does not want to have
to sift through material that mixes the two.
6/19/04: Student from Denver, CO: First off, I would
like to say that I've found your book to be very student
friendly. I'm a grad student at the University of Denver
and I'm working on this course while living in Alabama.
The book is my main source of information. Because of
that, I'm really trying to understand the examples and
explanations. A list of corrections was included that
have been incorporated into the Errata.
6/2/04: Hi, I'm a teacher from the UNAM, Mexico. I
love your site and I will show it to my students.
5/18/04: Professor from Baku / AZERBAIJAN: The site
(ORMM) itself and the facilities it provides are invaluable.
I’ve been using your add-ins for a while for teaching
and for some problems I need to solve, and I really
appreciate your great effort to create these wonderful
add-ins. It is doubtlessly a virtuous thing that you
share them with us. Thank you for your help.
5/11/04: I was looking a way for improve the macros
that I've in XL (looking to convert to an add-
in) and I found your web page. I found the "components"
file (from Do-it-Yourself) VERY useful.
Your website is very complete and really nice presented.
From a book review in IIE Trans. Operations
Engineering, Vol. 35, No. 9, 2003.
Reviewed by David Goldsman, School of Industrial and
Systems Engineering, Georgia Institute of Technology.
"Every once in a while, a clever text comes along
that breathes a nice dose of fresh air into the mature
field of Operations Research (OR). The Jensen and Bard
book is one such welcome example." ... "The
web site is impressive, both for its content and ease
of navigation." ... "I feel that the book
is extremely well written, interesting, and unique among
OR texts; it certainly approaches the topic areas from
a new perspective. This is an excellent text that I
believe professors and students will enjoy and gain
a lot from its use."
From a Spanish company that work
in Data Mining
3/12/04: We developed a model based on Markov Chains
for a bank company and your Add-ins for Excel have been
very useful.
From a professor in Belgium
3/10/04: The MRP-add-in works perfectly.
2/4/04: Once again, your optimization software is amazing
friendly and very accurate. Congratulations.
2/3/04: Paul, I'm a new visitor to your site (and found
it quite interesting).
From the Netherlands
1/20/04: Thanks for your effort! I have been looking
for a Bayes add-in for Excel for 2 months and wasn't
able to find your site. Yesterday, by luck, I browsed
Google-pictures for "bayes" and came across
your site.
From a professor of applied statistics in Caracas Venezuela
1/9/04: Hello, let me congratulate you for you exceptional
material add ins
From a professor in United Kingdom
1/6/04: This is a wonderful facility you have given
here. My students will find these add-ins very very
useful. I am grateful to you for this.
12/13/03: Nice presentation and organization!
Researcher in the Faculty of Agriculture, University
of Ankara, Turkey
12/12/03: I really thank you for your very useful web
pages. I am studying on the optimization of irrigation
networks with minimum spanning tree, out of kilter and
shortest path methods. Especially open channel networks.
From a former student working for a bank in Mexico
12/1/03: I remember you use to have great efficient
Microsoft Excel Solver Add-Ins, and I really need to
get more familiarized. This is because I am working
for a Bank down here who wants to optimize their cycle
time.
11/25/03: I just found your page and it looks really
great to me. The topic, that I am interested in most,
is production planning.
Corporate Finance
11/4/03: I found your web site most interesting and
would most definitely like to be added to your mailing
list. I have been using VBA for some time now but would
like to become a bit more sophisticated in terms of
usage. I believe that your web site will be ideal for
me to achieve this.
Lecturer from Thailand
10/28/03: I think your provided addins would be of great
benefits to my students, especially when the sensitivity
and detailed report are available.
Visiting fellow at the University of Calgary
10/27/03: My home University is University of Lagos,
Dept of Computer Science. I came across your material
on the web and I was impressed and interested in your
work.
10/25/03: I would like to say thank you for the add
ins which you have provided on your web site which have
been of great help to my work.
Hotel Consultant from South Africa
10/21/03: May I begin by thanking you for the wonderful
and edifying content of your web site. My company has
been asked to add forecasting capabilities to a software
product of ours, and the forecast.xla spreadsheet and
your site have gone a great distance towards making
this bearable for myself and my nerds, none of whom
are exactly statisticians.
From a professor in Belgium
10/14/03: I am teaching “production management”
in engineering classes (30 students each year). You
have a marvelous site.
10/14/03: I am a student at Bandung Institute of Technology
in Industrial Engineering Department. I am very interested
about your creation especially in making add-ins.
Professor from Hong Kong
10/9/03: I have come across your new book on Operations
Research: Models and Methods. I have also read your
older book on Network Flow Programming and have visited
your web site. on the integer programming and network
programming classes. I really think they are excellent.
9/29/03: I run these ideas by you because I have enjoyed
looking at your excellent Excel Addins.
Engineer from a company in the Netherlands
9/25/03: Searching on the Internet for optimization
methods in Excel I found your web site. www.ormm.net.
My compliments for the way you translate the theory
to practice.
Programmer from California, USA
9/9/03: I am impressed with your forecast add-in and
I was wondering how much you would charge to allow me
to get the password to your .xla file so that I can
convert the forecasting formulas to use with a Visual
Basic 6 forecasting program for my company. Response:
No charge.
9/1/03: I'm currently doing production planning for
my master project. Thanks for the Excel addins.
Engineer from Virginia, USA
8/28/03: I was browsing your web site. and found it
to be very interesting.
Manufacturing Designer from Virginia, USA
8/1/03: One of our engineers was looking for Excel plug-ins
and ran across your posted plug-ins. Question came up
whether we could use them for commercial applications
or not. Thanks for posting the plug-ins. Response:
They can be used.
EE-student Koethen (Germany)
6/17/03: Now I work on my seminar paper, that deals
on topic in image processing. By solving my specific
problem I came in contact with constrained optimization
for my first time. So I found your web-site and your
great effort in teaching optimization for engineers.
Student from France
6/4/03: I am a student interested in mathematical programming
and I thank you for your web pages on the subject.
Student of Computer Science degree at Medellín,
Colombia
5/14/03: I have been working on several projects in
the Quantitative Methods and Simulation fields on the
past, which have led me into finding lots of useful
information and research all around the world. But it
was only today when I found your excellent UTA web site.
about Operations Research. I browsed through a lot of
your Addins, and got amazed by the high functionality
and excellent modeling of them.This letter is just to
say a big "Thanks!" for all the effort, time
and dedication that you put into your work. It really
is encouraging to see all of what you have accomplished.
Research assistant in a university in Turkey
5/2/03: The subject of my research thesis is about queuing
systems. I search all things about it. There is some
PC programs to solve queuing problems, but I realize
that they are not sufficient. I met your web site by
coincidence, I admit I am really affected.
4/13/03: I am a graduate student of National University
of Singapore. Your courseware and lecture notes are
well known.
Software Engineer in Bombay, India
4/7/03: We find the content provided by your web-site
(Network Flow Programming) very useful and this letter
is in regards to using the content of your web-site
for educational purposes. We thank you for creating
such a useful web-site. Response: You
are welcome to use them for educational purposes.
4/3/03: I am an outreach student from Puerto Rico at
Auburn University (Alabama). I am enrolled in
the Industrial and Systems Engineering masters program.
I am interested in joining the club. You have done a
great job with this site!!
2/22/03: I just found your site today and am VERY impressed.
Thank you for providing us with this.
1/8/03: Thanks for sharing the add-ins. They
work great! We would like to create a dedicated MINIF
and MAXIF add-in, since your DECISION.XLA is rather
large, at 500k+. Unfortunately, it is password
protected, preventing us for trimming out the other
code. Would you be willing to share the password
so we can create the simplified versions of MINIF and
MAXIF? Response: The password is given
on the web site
Professor from Univ. of Economics, Prague
1/6/03: I have to thank you for the splendid book you've
written and for the web site. It is so powerfully tool
to learn the operations research that it is even hard
to believe it!
Comments from 2002
I love the add-ins you have made available on the web.
I am a Mathematica user who enjoys reading Bobby Treats
posts to MathGroup (a sort of online forum for hard-core
Mathematica users). After following one of his hyperlinks
to your Excel page, I quickly became absorbed in the
material. I've never spent any real time with Excel
until now and I am enjoying your software thoroughly.
Thanks so much for making the Excel Addin's available.
And especially thanks for the source and the Flash Animations.
I am just beginning with Excel and Flash Programming
and it is wonderful to see all that can be done.
Professor University of Minnesota
You two have done a great job! The web site and examples
was a real epiphany: I had no idea that this subject
was so fascinating.
I am a student studying at the University of Hull and
am taking on a final year project with the title 'Using
queuing theory study the impact of scheduling algorithms
on job throughput in a multitasking environment'. Basically,
I have found your queue.xla add-in very useful in my
research.
Professor from Malaysia: I am teaching a course in
OR and find your book an excellent teaching aid.
I'm pursuing a Doctorate in engineering management
at SMU part-time. You web site. has been very helpful
and informative for operations know-how. I can't get
over the fact it's so open. Thank you.
Just a quick "Thank You" for making all the
materials (educational, Excel add-ins, links, etc) available
on your web site. I'm sure it will be very useful to
me and many others.
I work at the University of Economics and I have lecture
of Operations Research where I use your programs (Excel).
However, not all the students understand the given instructions
since they have problems with English. Therefore, I
would like to translate them (just the instructions)
into Polish.
This past summer I taught a small graduate course in
Supply Chain Models and Optimization and used some of
your addins extensively. I thought you might like to
know that they were very well received. We used mainly
the LP/IP, Distribution and Network Addins, and the
students thought they were very useful and easy to use.
School of Veterinary Medicine, Louisiana State University:
I would be very interested in a copy of your book -
I have used your add-ins and have found your site extremely
helpful.
I came across your web site by a search from Goggle
on "methods of operation research". I really
enjoyed browsing through all your pages. I like the
many explained examples.
As professor of Operations Research, I feel very interested
about your book OR Models and Methods. This book is
focused in something I have been talking about with
all my students and other professor: that OR teaching
should focus in the use of software, specially the Excel.
