Reviews (28)

Good introduction to cryptology and an interesting story
"In Code" provides a readable and thorough overview of cryptology in the context of Sarah Flannery's experience in this field of science.The book provides both good coverage of the mathematics underlying encryption technologies used today and a compelling and interesting story of a bright young individual making her way through an exciting field of science.
great story, great adventure
A very interesting account of a young person's algorithim for encoding information.The math is in the appendix for those who want ot understand the method she devised.

In many ways, Sarah is just another teenage girl.
As the father of three children about to iterate into their teen years, I often cringe when I see what they view as inspiration from the media. Sometimes, I really have to press them to read books and challenge their minds. One thing that we have done for years is have what we call questions after supper is done. I ask them questions about many different things, although we concentrate on geography, history and mathematics. The mathematics questions are generally in the form of a puzzle and we have covered basic proof techniques such as the pigeonhole principle. On several occasions, they have explained the solutions to mathematics problems by citing and explaining the pigeonhole principle.
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Subjects:  1. 1982-    2. Biography    3. Biography & Autobiography    4. Biography / Autobiography    5. Biography/Autobiography    6. Coding theory    7. Discrete Mathematics    8. Flannery, Sarah,    9. Ireland    10. Mathematicians    11. Scientists - General    12. Women    13. BIOGRAPHY & AUTOBIOGRAPHY / Women    14. Biography & Autobiography / Science & Technology    15. Flannery, Sarah    16. MATHEMATICS / Discrete Mathematics   

Reviews (7)

We use it for our discrete course
Discrete mathematics is now a keystone course in the computer science major and a fundamental course in the mathematics major. The mathematics covered in the course is still somewhat open to interpretation, but far less than it has been in the past. I examined this book for possible use as a textbook and ended up recommending that it be used. At this time, it is the book being used for the discrete mathematics class at the college where I am employed.
Great book.
I had this book for my first class in the number theory & combinatorics realm, and this has been the best book I've used since. To respond to an earlier review, the errors in the proofs serve a very important function: they make you actually read the proof. The templates teach you how to recognize when a particular method of proof is required. My only regret is that I have sold the book after taking the class, and $140 is too steep to buy a fresh copy.

Please, stay away from this book.
You will not learn anything from this book. The author twists simple material into cabalistic abstractions by adding ramification where not needed and the converse of course holds for formidable notions; as to why this is, one might reason for of the sake of original presentation of well established mathematical concepts, moreover the result: unworthy compilation of simple ideas, presented in an amateurish way - arduous to understand. Hence, summing up: A WASTE OF TIME. ... Read more

Subjects:  1. Calculus    2. Computer science    3. Discrete Mathematics    4. Mathematics    5. Science/Mathematics    6. Textbooks    7. Mathematics / General   

Reviews (1)

A Panorama of Geometric Mini-Max Facts
This work as well as all other works of Prof. Andreescu is a math GEM; contains a panorama of minima and maxima problems,facts, and methods in geometry: Malfatti's Problems, Geometric Transformations, Algebraic Inequalities, Calculus Method of Partial Varitation and Tangency Principle, Polygons in a Square, Broken Lines, Distribution of Points, Coverings, and much more.
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Subjects:  1. Algebra - General    2. Discrete Mathematics    3. Geometry - General    4. Mathematical Analysis    5. Mathematics    6. Science/Mathematics    7. Combinatorics & graph theory    8. Euclidean geometry    9. Mathematics / Geometry / General   

Reviews (1)

Written by a Mathematician Not a Teacher
I was curious about the content of this book.All I had to do was read the first two pages.Good grief, no wonder kids hate math.I became a math teacher because of all the lousy math teachers I had to indure in high school ( and yes, then in college!)-- We have got to get rid of these "nerds" they suck all the joy out of the subject.Yes, I said JOY.I have always loved math and found it fun and exciting and that is the way I have tried to teach is for the last 30 years.You will find no joy in this book.I would like to ask these authors what is the equation for JOY?(They probably just would not get what I meant. -- I am rolling my eyes.) ... Read more

Subjects:  1. Artificial Intelligence - General    2. Artificial intelligence    3. Combinatorics    4. Computational linguistics    5. Computer Books: General    6. Computers    7. Computers - General Information    8. Discrete Mathematics    9. Natural Language Processing (Computer Science)    10. Natural language processing (C    11. Probability & Statistics - General    12. Testing & Measurement    13. Cognitive Science    14. Combinatorics & graph theory    15. Computers / Artificial Intelligence    16. Educational Technology    17. Mathematical Psychology   

Reviews (4)

This is a book for REAL mathematicians
This book is an wonderful introduction to Differential Geometry for the serious student of mathematics. However, it is not aimed at engineers, physicists or even applied mathaticians.
When accountants and soldiers take interest in geometry.....
One day, accountants and soldiers may take an interest in differential geometry. If and when such a day comes to pass, this book will have a role to play. Until then, engineers, physicists and mathematicians alike have better alternatives, such as the inspiring texts, with complementary qualities, by Burke, "Applied Differential Geometry"; by do Carmo, "Riemannian Geometry", or by Spivak, "A Comprehensive Introduction to Differential Geometry".
great introductory text
My first course on manifolds was based on this book,and I believe that it is the best introduction to the subject (especially for beginners). I thoroughly enjoyed it! I should also recommend Conlon's 'Differentiable Manifolds' (2ed, Birkhauser), as it is the perfect follow-up to Boothby. --A ... Read more

Subjects:  1. Calculus    2. Differentiable manifolds    3. Differential Geometry    4. Differential Topology    5. Discrete Mathematics    6. Geometry - Analytic    7. Geometry - Differential    8. Mathematics    9. Riemannian manifolds    10. Science/Mathematics    11. Calculus & mathematical analysis    12. Differential & Riemannian geometry    13. Mathematics / General   

Reviews (1)

Mediocre text with some potential
Merris has tried to write a text suitable for a one-semester introduction to graph theory for undergraduates with little background required (merely standard proof techniques). He has succeeded in writing a text that can be covered in one term, if you rush, rush, and rush some more. However, he has relegated some important topics to poorly-written exercises (e.g., Euler tours and such). The text also lacks cohesiveness. The Preface makes it clear that Merris wants the book to lead to four independent strands after the initial three chapters. However, a single chapter does not constitute a "strand" to be followed, and the only set of chapters that becomes cohesive at the end is 7, 8, and 9. Regarding chapter 9, don't let the title "Oriented Graphs" mislead you. A tiny portion of the chapter deals with oriented graphs as an excuse to introduce the vertex-edge incidence matrix and then the Laplacian matrix, and the rest of the chapter is devoted to properties of the Laplacian spectrum.Read more

Subjects:  1. Combinatorics    2. Discrete Mathematics    3. Graph Theory    4. Graphic Methods    5. Mathematics    6. Science/Mathematics    7. Combinatorics & graph theory    8. Mathematics / Discrete Mathematics   

Reviews (2)

Best beginner's book in Mathematica...
I got the 1998 printing of this book, which treats Mathematica 3., but not 4.+. So some of the formatting for the commands is not quite right, but a 4.+ user can use the Help Browser in Mathematica to correct for these. A must for mathematica beginners!
This book helped me a lot getting started with mathematica . It gives easy examples in all basic math areas. The examples can easily be reproduced and modified for personal use. The only critique is that there is no diskincluded...everything needs to be punched in. ... Read more

Subjects:  1. Calculus    2. Data processing    3. Discrete Mathematics    4. Mathematica (Computer file)    5. Mathematics    6. Science/Mathematics    7. Mathematics / Calculus   

Reviews (1)

Statistics and Data Analysis Review
This book was the assigned text for a graduate level statistics course I took.It is well written with examples for every technique discussed and lots of exercises at the end of each chapter.I highly recommend it. ... Read more

Subjects:  1. Business & Economics    2. Business/Economics    3. Discrete Mathematics    4. Mathematical Statistics    5. Mathematics    6. Probability & Statistics - General    7. Statistical Analysis    8. Statistics    9. Business & Economics / Statistics    10. Economic statistics    11. Probability & statistics   

Reviews (3)

A good pedagogical aid for math competition
This is a great compilation of various subjects in math from which quiz problems often stem. The thought process for solving a particular type of quizzes is illustrated with actual sample problems, as it should be. I think it will be perfect for my son when he gets a little older, but this book may be too easy for adults. I purchased it after enjoying months of puzzle-solving pleasure on my long daily train rides with "Mathematical Olympiad Challenges" from the same authors, but this book poses so little challenge that there is virtually no risk of stumbling over any problem. The authors acknowledge the difference in difficulty levels in the promotional literature. Perhaps they will publish a collection of harder problems separately.

Helpful for the experience, but not beginners
I would recommend this book if you have already developed a repretoire for solving olympiad (USAMO, IMO, etc) level problems.This book teaches a couple more interesting startegies to add to your olympiad bag of tricks.However, a beginner to olympiad problems may wish to consider a different book first.
Definitely a treasure!
Andreescu delivered again! This book teaches powerful math problem solving techniques through a series of graded problems. The insight from these two renounced problem solvers of elementary problems at the olympiad level is prevalent throughout the book, which is what makes this book a treasure. You'll learn wonderful techniques and come away with a satisfying feeling after you can solve some of the problems that seem impossible to you before. I hope these authors continue to put out such gems in the near future. Enjoy! ... Read more

Subjects:  1. Discrete Mathematics    2. General    3. Geometry - Algebraic    4. History & Philosophy    5. Mathematics    6. Mathematics (General)    7. Problems, exercises, etc    8. Science/Mathematics    9. U.S.A. Mathematical Olympiad    10. Algebra    11. Combinatorics    12. General Math    13. Geometry    14. Math Education    15. Mathematics / General    16. Number Theory   

Reviews (1)

Useful yet dense!
This is the most comprehensive compilation on combinatorial optiomization I have seen so far.Read more

Subjects:  1. Computer Science    2. Discrete Mathematics    3. Linear Programming    4. Mathematics    5. Number Theory    6. Science/Mathematics    7. Algorithms & procedures    8. Combinatorial Optimization    9. Discrete Algorithms    10. Mathematical Programming    11. Mathematics / Discrete Mathematics   

Reviews (2)

Don't be Fooled by the Title:The Best APL Primer Around
Reiter broaches what is often viewed a multi-faceted task in a manner so as to make functioning in APL (A Programming Language) straightforward, practical, and useful.Basics are taught first, both Monadic and Dyadic use of the elementary operators, later introduction to Del, programming and the advantages of the branch.Mathematical concepts, including the basic linear, and the less familiar higher-order regression techniques are presented along with the APL equivalents of the algebraic technique for simultaneously solving equations.
An efficient introduction to mathematical solutions in APL.
This excellent 200 page book describes itself as an "introduction to APL", and it does contain an efficientand orderly introduction to APL functions, operators, syntax, and arrays. By page 30 or so, however,it begins to use APL to solve some serious math problems--integration,Netwon's Method for solving roots of equations, the Power Method forestimating eigenvectors and eigenvalues, as well as common statisticalmethods.Instruction in APL language is integrated throughout with theexposition of these math problems. ... Read more

Subjects:  1. APL (Computer program language    2. APL (Computer program language)    3. Applied    4. Computer Programming Languages    5. Discrete Mathematics    6. Mathematics    7. Science/Mathematics    8. Mathematics / Applied   

Reviews (2)

A rigorous account of Interior Point Methods
Yinyu Ye is one of the exponents of Modern Day Interior Point Methods. He is responsible for a class of interior point methods called "Potential Reduction Methods", and you will find a good account of it in thisbook. Yes Good ! But !
Our times are as much complex as this book is. Of course Luenberger instinct and intiution is missing. But this book has taken a lot of the spirit of Luenberger way of writting and it should because the writerprobably had this great man as a teacher. Unfortunately each paragraph isonly C0 continue with the others. For instance chapter 4 seems to beindependent of Chapter 3 despite the writer generous attempts to prevent usagainst. Couldn't it have been more illustrative in Karmarkar's algorithmfor instance to be mentioned in a straight-forward manner that we firstfind a feasible point then find the analytic center of Omega which is acentral-path point. Then we place the objective line passing this point,then minimizing to the analytic center of omega(z) then when |pk| < n< 1 then we have an 9/10 analytic center of it then we move the line tothis center and then do the same job. The 'deeper cut' that is describeddoes not convince because the movements of the objective line are fewerthan other iterartions. Concluding this book should be treated as a guideto a wonderful new world.But theories ofInterior - Point MUST be made more easy. I am sure that there exist Proofsand theorems that are more "simple" and thus more"reliable". Lets hope that a new Luenberger is on his way... ... Read more

Subjects:  1. Algorithms (Computer Programming)    2. Discrete Mathematics    3. Interior-point methods    4. Linear Programming    5. Mathematics    6. Science/Mathematics    7. Applications of Computing    8. Mathematical modelling    9. Mathematics / Discrete Mathematics    10. Number theory   

Subjects:  1. Algebra - General    2. Computer Science    3. Computers / Data Processing    4. Discrete Mathematics    5. Mathematics    6. Science/Mathematics    7. Algebra    8. Applications of Computing    9. Computers    10. Data Processing - General    11. Maple (Computer file)    12. Mathematical theory of computation    13. MuPAD   

Reviews (2)

Great Book.
This is a great text on matroid theory. This book is far easier to read than other matroid book I have seen (Welsh). Second edition is a significant update and cheaper to boot. (being a paperback)
Good book
The author clearly explains the topic.My only complaint is that some of the problems are rather difficult, and there isn't a solution key. ... Read more

Subjects:  1. Combinatorics    2. Discrete Mathematics    3. Graphic Methods    4. Group Theory    5. Mathematics    6. Science/Mathematics    7. Combinatorics & graph theory    8. Mathematics / Combinatorics    9. Mathematics | Pure Mathematics   

Reviews (1)

Excellent book from mathematical standpoint
Very good intro textbook. It gives short, detailed preps to various coding areas (linear, cyclic, convolutional). The biggest advantage this book has is that it does not throw at You tonnes of unnecessary info (like many other thick books do). That is, it assumes reader has some basic understanding of algebra and probability theory. Let's say, it gives good theoretical presentation such that the reader gets good theoretical understanding, it is not example-based. ... Read more

Subjects:  1. Advanced    2. Applied    3. Coding Theory    4. General    5. Information Theory    6. Mathematics    7. Probability & Statistics - General    8. Programming - Systems Analysis & Design    9. Science/Mathematics    10. Algebraic geometry    11. Applied mathematics    12. Codierung zur Fehlerverbesserung    13. Combinatorics & graph theory    14. Error-correcting codes    15. Mathematics / Discrete Mathematics    16. Number theory   

Reviews (2)

One of the most interesting books I've used
This book features great contents. Integer programming is one of the most interesting subjects and this book captures the beauty of it through the use of nice explanations and a neat and organised notation. The author carefully describes the algorithms used to solve some of the classic integer programming problems. The theorems are generally followed by proofs and the contents are presented in a very comprehensive order.

A Complete Referance
I really like reading this book. It is upto date in terms of algorithms and theory. You can find nearly every basic topic about integer optimization in the book. I consider it as a complete referance in integer optimization. The sequence of the topics, chapters, also make it easier tounderstand the contents. The book gives both the theory and solutionstrategies. I recommend the book for people who work or study in thefollowing areas:industrial engineering, operations research and operationsmanagement. ... Read more

Subjects:  1. Discrete Mathematics    2. Discrete Mathematics (Computer Science)    3. Integer programming    4. Linear Programming    5. Mathematics    6. Operations Research    7. Operations Research (Engineering)    8. Science/Mathematics    9. Technology    10. Computer Programming    11. Mathematical theory of computation    12. Mathematics / Discrete Mathematics   

Subjects:  1. Computer Bks - General Information    2. Computer Books: General    3. Computer Science    4. Computers    5. Computers - General Information    6. Conferences    7. Congresses    8. Discrete Mathematics    9. Discrete Mathematics (Computer Science)    10. Foundations Of Mathematics    11. General    12. Machine Theory    13. Mathematics    14. Algorithms    15. Combinatorial Optimization    16. Computers / Computer Science    17. Formal Methods    18. Graph Theory    19. Informatics    20. Mathematical Logic    21. Networking Algorithms    22. Programming Theory    23. Theoretical Computer Science    24. Theory of Computing   

Reviews (2)

Well structured book
The best thing I like about this book, is that it has carefully selected subjects and rich set of exercises with detailed solutions. For the first several chapters, there are even more pages devoted to exercises+answers than the text. I think it is better to learn math by doing exercises than memorizing lots of theorems.
A Stroll Through the Old and New
Combinatorics often, but not always, involves finite sets, and the ideas of counting. But the subject of combinatorics has indeed become very large, and it has worked its way into many others parts of mathematics, computer science, science, and engineering. Bona's book, `A Walk Through Combinatorics', is a text designed for an introductory course in combinatorics. It covers the traditional areas of combinatorics like enumeration and graph theory, but also makes a real effort to introduce some more sophisticated ideas in combinatorics like Ramsey Theory and the probabilistic method.Read more

Subjects:  1. Combinatorics    2. Discrete Mathematics    3. Graphic Methods    4. Mathematics    5. Science/Mathematics   

Reviews (1)

A MUST HAVE for the design theorist
This book is an excellent collection of survey articles that spans the breadth of design theory.This book, in addition to the CRC Handbook of Combinatorial Designs should be on every design theorist's shelf. ... Read more

Subjects:  1. Combinatorial designs and conf    2. Combinatorial designs and configurations    3. Combinatorics    4. Discrete Mathematics    5. Mathematics    6. Science/Mathematics    7. Topology - General    8. Combinatorics & graph theory    9. Mathematics / Topology   

Reviews (1)

Haufler v. Keegan
It is ironic that Hervie Haufler's book, "Codebreakers' Victory," was published at the same time that John Keegan's book, "Intelligence in War" came out.In the first sentence of his book, Keegan, an otherwise astute observer of military affairs, asks "How useful is intelligence in war?"Keegan's answer is, not very useful.He should have read Haufler.Though it contains only a little primary research, Haufler's compilation from solid sources collected over his lifetime is a major contribution to the study of intelligence during World War II.For battle after battle, on every front of the war, Haufler makes a solid case that intelligence has made a difference-in many cases a significant difference.It is unfortunate that Haufler is less well known than Keegan.I fear it may cause some to overlook Haufler's valuable book.It should not.Haufler writes in an easily readable style (in contrast to Keegan), and recognizes that, while intelligence may not win a battle or a war, it can make all the difference.Prior to this book, those interested in the role of intelligence in WWII would have needed to consult scores of books and articles to get this same picture.Haufler has done that work for us and has collected from the best the information in this volume.It needs noting that he does contribute some important primary research in the form of interviews with several WWII cryptanalysts.Haufler's only hyperbole is contained in his sub-title--"How the Allied Cryptographers Won World War II".That, one can hope, was added by his publishers and not by him. ... Read more

Subjects:  1. 20th century    2. Cryptography    3. Discrete Mathematics    4. Great Britain    5. History    6. History - Military / War    7. Military    8. Military - World War II    9. Security - General    10. United States    11. World War, 1939-1945    12. Data security & data encryption    13. Europe    14. European history: Second World War    15. History / Military / General    16. Military intelligence    17. Second World War, 1939-1945    18. World history: Second World War