Concepts, Techniques, and Models of Computer Programming - Chapter 9 ppsx
Concepts, Techniques, and Models of Computer Programming - Chapter 9 ppsx
... productto 6-digit numbers then the naive solution takes 45 seconds.1The propagate- and- search solution of Chapter 12 takes less than 0.4 second to solve the sameproblem. 9. 2.2 Puzzles and the n-queens ... X2]#B#(X1|X2|B)|Copyrightc 200 1-3 by P. Van Roy and S. Haridi. All rights reserved.674 Relational Programming tive proof of this [ 194 , 188]. The successful series of conferences on PracticalApplications of Prolog ... some other computation models: • Adding concurrency to the declarative model gives the data-driven and demand-driven concurrent models. These models also do logic program-ming, since they only...
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Concepts, Techniques, and Models of Computer Programming - Chapter 0 doc
... Furtherexamples 6 39 9.2.1 Numericexamples 6 39 9.2.2 Puzzles and the n-queensproblem 641 9. 3 Relationtologicprogramming 644 9. 3.1 Logicandlogicprogramming 644 9. 3.2 Operationalandlogicalsemantics 647 9. 3.3 ... Object-Oriented Programming 493 7.1 Motivations 495 7.1.1 Inheritance . . 495 7.1.2 Encapsulatedstateandinheritance 497 7.1.3 Objectsandclasses 497 7.2 ClassesascompleteADTs 498 7.2.1 Anexample 499 7.2.2 ... Concurrent ML [158] and Concurrent Haskell [1 49, 147]).Copyrightc 200 1-3 by P. Van Roy and S. Haridi. All rights reserved. Concepts, Techniques, and Models of Computer Programming PETER VAN...
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Concepts, Techniques, and Models of Computer Programming - Chapter 1 pps
... display a huge number: 93 3 26215 44 394 41526 81 699 23885 62667 00 490 71 596 82643 81621 468 59 296 38 95 217 599 99 32 299 15608 94 146 397 61 56518 28625 3 697 9 20827 2237582511 85210 91 686 40000 00000 00000 ... avariable:declareV =99 99* 999 9This declares V and binds it to 99 980001. We can use this variable later on:{Browse V*V}This displays the answer 99 96000 599 960001.Variables are just short-cuts for values. ... Roy and S. Haridi. All rights reserved.4 Introduction to Programming Concepts 99 99* 999 9 and displays the result, 99 980001, in a special window called thebrowser. The curly braces{ } are used...
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Concepts, Techniques, and Models of Computer Programming - Chapter 2 pptx
... of many other techniques. This book focuses on three in particu-lar: object-oriented programming, graphical user interface (GUI) design, and component-based programming. In object-oriented programming, ... with single-shot channels. Chapters 4 and 5 show other types of channels (with sequences of messages) and do concurrent composition of processes.Copyrightc 200 1-3 by P. Van Roy and S. Haridi. ... model and a practical language based on it. The next chapter, Chapter 3, gives the programming techniques of this language. Later chapters enrich the basic mod-el with many concepts. Some of the...
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Concepts, Techniques, and Models of Computer Programming - Chapter 3 docx
... instead of standard lists:• Flatten of nil is X#X (empty difference list).• Flatten of X|Xr where X is a nested list, is Y1#Y4 whereflatten of X is Y1#Y2,flatten of Xr is Y3#Y4 ,and equateY2 and ... arguments IsDone and Transform are givenone-argument functions. Passing functions as arguments to functions is part of a range of programming techniques called higher-order programming. Thesetechniques ... removing more and more of theleft-hand part of T2. Eventually, T2’s left subtree is removed completely and theright subtree takes its place. Continuing in this way,T2 shrinks more and more,passing...
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Concepts, Techniques, and Models of Computer Programming - Chapter 4 pps
... introduces the lazy concurrent model and gives some of the mostimportant programming techniques, including lazy streams and list compre-hensions.• Soft real-time programming. Section 4.6 explains ... forconcurrent object-oriented programming. Chapter 11 shows how to do distribut-ed programming, i.e., programming a set of computers that are connected by anetwork. All four chapters taken together ... someother techniques, namely order-determining concurrency, coroutines, and concurrent composition.• Lazy execution. This part explains the second form of declarative con-currency, namely demand-driven...
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Concepts, Techniques, and Models of Computer Programming - Chapter 5 pptx
... inthe larger context of component-based programming. Because of message-passingconcurrency we no longer have the limitations of the synchronous “lock-step”execution of Chapter 4.We first introduce ... tuples:area({square, Side}) -& gt;Side*Side;area({rectangle, X, Y}) -& gt;X*Y;area({circle, Radius}) -& gt;3.141 59* Radius*Radius;area({triangle, A, B, C}) -& gt;S=(A+B+C)/2;math:sqrt(S*(S-A)*(S-B)*(S-C)).This ... two basic kinds of wires:one-shot and many-shot. One-shot wires are implemented by dataflow variables.They are used for values that do not change or for one-time messages (like ac-knowledgements)....
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Concepts, Techniques, and Models of Computer Programming - Chapter 6 pdf
... Algol-60 and structured programming [46, 45, 130], which led to Simula-67 and object-oriented program-ming [137, 152].2This book sticks to the traditional usage of declarative as stateless and ... theoperations of the abstract data type. This idea is at the heart of object-oriented programming, a powerful programming style that is elaborated in Chapter 7. Thepresent chapter and Chapter 7 ... and in the small, in its high-levelarchitecture and in its low-level details.”– Object-oriented software construction, 2nd ed., Bertrand Meyer( 199 7)“An efficient and a successful administration...
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Concepts, Techniques, and Models of Computer Programming - Chapter 7 ppt
... of its time and had littleimmediate influence. Much more influential in making object-oriented program-ming popular was Smalltalk-80, released in 198 0 as the result of research done inthe 197 0’s ... The first way, often-used in object-oriented programming, uses inheritance. The second way uses higher-order programming. We will seethat the first way is just a syntactic variation of the second. ... as be-ing an object and to mix the notions of state and encapsulation. The advantagesto be gained by considering other entities than objects and by using encapsula-tion without state are often...
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Concepts, Techniques, and Models of Computer Programming - Chapter 8 pdf
... paradigms of message-passing and shared-state concurrency. At the time of writing, we know of no books that deal with the third concurrent paradigm of declarative concurrency.Concurrent Programming ... because of the single-assignment property of dataflow variables. An important detail: the arith-metic operationsN-1 and N+1 must be done after the exchange (why?).We discuss the advantages and ... con-current model that adds explicit state in the form of cells, which are a kind of mu-table variable. This model is equivalent in expressiveness to the message-passingconcurrent model of Chapter...
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