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Introduction to the Theory of Computation 3rd Edition
| Price | New from | Used from |
- ISBN-10113318779X
- ISBN-13978-1133187790
- Edition3rd
- PublisherCengage Learning
- Publication dateJune 27, 2012
- LanguageEnglish
- Dimensions6.5 x 1 x 9.5 inches
- Print length504 pages
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- Publisher : Cengage Learning; 3rd edition (June 27, 2012)
- Language : English
- Hardcover : 504 pages
- ISBN-10 : 113318779X
- ISBN-13 : 978-1133187790
- Item Weight : 1.65 pounds
- Dimensions : 6.5 x 1 x 9.5 inches
- Best Sellers Rank: #72,352 in Books (See Top 100 in Books)
- #13 in Machine Theory (Books)
- #183 in Computer Science (Books)
- Customer Reviews:
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In my Bachelor of Science at the University of Melbourne years ago I studied some related content in a subject entitled 618-341 Mathematical Logic, and did not take the computer science subject 622-301 Theory Of Computation. Now, from the mathematician's point of view finitism is irrelevant it's a matter of axiom systems being consistent and proving things. The Godel number encoding of theorems and interiority arguments and clever free variable substitution arguments together with model theory were used to establish as true many powerful results ...
I note that the terminology has changed since 1982; what was called then 'a recursive formula' is now called Turing decidable and what was called then 'a recursively enumerable formula' is now called 'Turing recognizable'. For example, this author would regard a Turing machine that took a blank tape and churned out the binary representation of pi 3.14159265358979323846 etc in some tape representation to an infinite number of places as a Turing machine that loops, even if such a Turing machine was reasonably well behaved in terms of its generally moving forwards ... This begs the question of real number representation; the bit string 0.11111111111 ... is essentially the same real value as 1.0000000000 ... This suggests to me that Turing theory has taken a more finitistic turn; whether this is to avoid paradoxes recently found I haven't worked out yet. In the real world with its quantum mechanics randomness and lack of apparent finititude it's quite concievable that a multi-tape Turing machine (as described in outline in section 3.2 p176ff) device could resolve a real number function evaluation so as to avoid a value ending in an infinite series of 1's that rightly should be rounded up, and store the real value as a constant in some 'set' device for storing real numbers ... However till we know more about the real truths underlying physics this is mere speculation ...
There are a lot of topics that are quite new to me. For example, P less than NP less than PSPACE less than NPSPACE less then EXPTIME seems a rather more complex hypothesis regarding algorithms and their expected time to complete than I've met in other works ... Reading this section I hope will prove rewarding ...
Overall it seems that the field has moved on since 1982 in many a way and I hope this book enables me to refresh my knowledge with the latest results. An excellent treatment of the whole field of theory of computation.
The only criticism I can think to make is that this work seems to have a finitistic philosophy rather than a mathematical Platonist philosophy ... but then this is essential to the computer science approach rather than a pure mathematical one ...
There are a number of complaints I have about this book:
1. Its price is just obscene - the fact that they would charge that much for a book that a lot of people are forced to purchase is just wrong on the face of it.
2. The lousy price is especially irritating given what you get for it. Fact is, even at a much lower price this textbook would be a bad value. At a mere 480 pages, this is not an especially long textbook; not sure how the publisher can possibly justify charging an above-average price for a shorter-than-average textbook. There's really nothing I can think of that would justify this book's price tag; it's not like they add some fabulous feature (software package, etc.) that makes this book worth the extra money. I suppose it's more of a "they charge it because they can" type scenario.
3. Not only is it overpriced, it's not even particularly well written. Quite bluntly, the book's relatively short because it doesn't explain anything.
With regards to the third point, I completely agree with the other reviewer who commented that this book is written as if you already understood the material; this is exactly what he does. I had to consult other textbooks all the time in order to be able to solve the book's problems because I found the author's explanations inadequate. It's almost like the author had a minimum word count and he was struggling to meet it ("OK, just 10 more pages to go before I can release it").
On the plus side, the problem sets are, for the most part, decently selected if you have decent reference material to help you with them (e.g. a different textbook, a good professor); if your professor's not that great and all you have is this book I pity you, the book is of some limited help in solving the problems I guess but you'll need a LOT more, especially if you're not already really familiar with this material.
I guess this book could be pretty helpful for review or reference if you already know the material, but overall it's not so great for learning the subject for the first time, especially if you're stuck using it as your primary learning source.
The information in the book seems to be accurate and well organized, but if I were to make a list of textbooks that were overpriced, this one would be at the top. The author or publisher should be in jail for how ridiculously overpriced this is (even as a used copy, brand new is robbery).
This only dips into the special topics, but introduces many of the important classes, and their relation to other complexity classes. Such classes as L, BPP, IP, Alternating, NC, and of course P, NP, exptime, PSPACE, and more.
It is very well written. It ussually explains the proof ideas before starting, and gives detailed proofs. If you can afford it, this book makes a great intro to complexity theory.
However, this is an intro. This book does not discuss advanced topics in depth, just enough to understand the most common comexity classes and their known relationships.
Top reviews from other countries
PROS:
1. Has Mathematical Rigor.
2. Makes you THINK LOGICALLY...
3. A Decent Sized Book.
4. Huge No. Of Exercises.
CONS:
1. Not as COMPREHENSIVE as Ulman. (but why compare!)
2. Makes you think HARD...if you want to. (but isn't that great?)
If you haven't yet started with Theory Of Computation, I'd recommend this as the FIRST book.
I haven't looked at the end of chapter questions/problems, but I'd heard that they might be a little different compared to the original version. Something to look into. As for the book, the content is solid and nicely and easily explained for the most part. It also has good examples.
In some parts, he could go have dug deeper into the material, but I understand that this would have made the book much wider and bigger. But yeah, good book. I'm not sure I could have found a better/equally good one.
All in all, a very convenient option for people on a budget. The pages are a little thin, and their quality isn't great, but it's nothing you can't get over. It's the compromise that you make by buying the book at a reduced price.
Very professional and courteous seller. I had a problem with the shipment, and the seller was very helpful in solving the issue and always replied promptly to my message. Thank you very much bookshut. I would recommend to friends.














