## 4 thoughts on “Models of Computation: An Introduction to Computability Theory (Undergraduate Topics in Computer Science) (NEW)”

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## Free download Models of Computation: An Introduction to Computability Theory (Undergraduate Topics in Computer Science)

Summary Models of Computation: An Introduction to Computability Theory (Undergraduate Topics in Computer Science) ´ eBook, ePUB or Kindle PDF A Concise Introduction to Computation Models and Computability Theory provides an introduction to the essential concepts in computability using several models of computation from the standard Turing Machines and Recursive Functions to the modern computation models inspired by uantum physics An in depth an. About me I m a grad student in math but have no prior experienceof the topic of the book I have actually not yet read the 40last pages or so so the review is about the rest of the bookI will be uite negative below so I want to start by sayingthat most chapters are OK and I love short books And thisbook gives you a uick way of getting auainted with various modelsof computation I dont agree with the official reviewer thatit goes in to depth or is extremely clear and well writtenOn the contrary it does NOT go into depth in all chapters butis rather uneven I really liked the chapter about lambda calculusMy general impression is that the author is often sayinghow to think about the definitions and concepts and what theyintuitively are rather than precisely saying what the definition ISI believe that the cause of my confusion other than perhaps ignoranceis the lack of crucial pieces of information See examples belowMany times I found myself confused after reading a definition andreally needed an example to clarify what was going on Althoughthere are fairly many examples in the book there were several placesin desperate need thereofIt is mostly chapters 5 and 7 that I find confusingExample chapter 5 on logic programs Definitive clauses Program clauses and Goals are defined A definitive clause is P1 or not P2 or not P3 or not Pn ie a disjunction of so called literals and atmost one literal is positive A definitive clause is a Goal if we remove P1 ie we have only negative literals The problem is that there is only a definition of what a Goal is but not what meeting a Goal is Only a very vague and incomplete explaination is given Program clauses can be seen as defining a database Goals are uestions to be answered using the information about the problem in the database This can be better seen with some examples Then there is only ONE example in which the goal has only ONE negative literal That leaves the reader wondering if each literal P2 Pn should be true or just atleast one of them Since the notation for a goal is P2P3Pn you might believe that the goal is to deduce ALL of the Pi s but since its a disjunction of negative literals mathematically it only makes sense if the goal clause should be disproven which means that ONE of the Pi s hold It gets even confusing later on Although I might have my self to blame for some of the confusion I am pretty convinced this is far from optimally writtenOther complaintsThere are some flaws in the techniue of writing For example the author mentionsmultisets several times but gives the definition only the last time On anotherinstance a new symbol is used and defined afterwardsThere is also a logical flaw on page 61 There is an argument that bounded minimisationof a primitive recursive predicate is also primitive recursiveThe argument uses a lemma whose input are functions f1 fk that are primitive recursivetotal functions Then the lemma is applied in a case where f1 is a priori only partially definedI m sure its possible to fix this argument but it still makes life unneccesarily difficult forthe reader

**review æ eBook, ePUB or Kindle PDF Ó Maribel Fernandez**

Summary Models of Computation: An Introduction to Computability Theory (Undergraduate Topics in Computer Science) ´ eBook, ePUB or Kindle PDF D the second part covers object oriented and interaction based models There is also a chapter on concurrency and a final chapter on emergent computation models inspired by uantum mechanicsAt the end of each chapter there is a discussion on the use of computation models in the design of programming languag. I found this book extremely useful when I was studying computability It is very well written and makes a difficult subject seem straightforward It has well thought out examples and exercises at the end of each chapter I d recommend this book to anyone studying the subject whether formally or out of interest

### Maribel Fernandez Ó 8 characters

Summary Models of Computation: An Introduction to Computability Theory (Undergraduate Topics in Computer Science) ´ eBook, ePUB or Kindle PDF Alysis of the basic concepts underlying each model of computation is providedDivided into two parts the first highlights the traditional computation models used in the first studies on computability Automata and Turing Machines; Recursive functions and the Lambda Calculus; Logic based computation modelsan. I used this textbook alongside an undergraduate computer science module and found it to be be very helpful with my studies The author is effective at communicating highly theoretical concepts in an understandable and unpretentious way This makes the book a great introduction for those new to the subjectThe book is organised clearly each chapter relating to a different model of computation Chapters start by briefly putting the model into context before going on to explaining the model in formal terms Many easy to follow examples accompany the abstract explanationsAt the end of each chapter there are a number of exercises most of which also have fully explained solutions I found these exercises especially useful because it allowed me to test whether I had correctly understood the theoretical concepts covered in the chapter The exercises are a good level of difficulty encouraging independent thoughtSome background in logic would help when reading the book

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- Models of Computation: An Introduction to Computability Theory (Undergraduate Topics in Computer Science)
- Maribel Fernandez
- en
- 06 August 2020
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Maribel Fernandez Ó 8 characters review æ eBook, ePUB or Kindle PDF Ó Maribel Fernandez Free download Models of Computation: An Introduction to Computability Theory (Undergraduate Topics in Computer Science) About me: I'm a grad student in math, but have no prior experience

of the topic of the book. I have actually not yet read the 40

last pages or so, so the review is about the rest of the book.

I will be quite negative below, so I want to start by saying

that most chapters are OK, and I love short books. And this

book gives you a quick way of getting aquainted with various models

of computation. I

Models of Computation: An Introduction to Computability Theory (Undergraduate Topics in Computer Science) (NEW) I used this textbook alongside an undergraduate computer science module and found it to be be very helpful with my studies. The author is effective at communicating highly theoretical concepts in an understandable and unpretentious way. This m

Models of Computation: An Introduction to Computability Theory (Undergraduate Topics in Computer Science) (NEW) review æ eBook, ePUB or Kindle PDF Ó Maribel Fernandez I found this book extremely useful when I was studying computability. It is very well written and makes a difficult subject seem straightforwar

Models of Computation: An Introduction to Computability Theory (Undergraduate Topics in Computer Science) (NEW) Maribel Fernandez Ó 8 characters Free download Models of Computation: An Introduction to Computability Theory (Undergraduate Topics in Computer Science) Worst book I have ever read! AWFUL.