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ppt
ppt

... generally we have tuple types with any number of components. The components can be extracted by means of projection functions. Product types more often appear as record types, which attach a label or field name to each component. Example (Ada): ...
Integrating High-Performance Polynomial Arithmetic into Maple
Integrating High-Performance Polynomial Arithmetic into Maple

... Another important trick is the use of “faster algorithms” for performing fundamental operations such as polynomial or matrix multiplication. Indeed, the complexity of higher-level algorithms is often a function of that of those basic operations. Asymptotically fast algorithms for exact polynomial an ...
Java set 1
Java set 1

... (pagers, cell phones)... ...
Dr Java has a definitions pane
Dr Java has a definitions pane

... How do you develop software? • Start with concept • use a development process, e.g. design-code-test • produce a good design † – procedural abstraction and data abstraction – high cohesion, low coupling • produce readable code - self-documenting code using consistent coding conventions † Covered in ...
Combining Events And Threads For Scalable
Combining Events And Threads For Scalable

... Event-driven programming, in contrast, is hard. Most generalpurpose programming languages do not provide appropriate abstractions for programming with events. The control flow graph of an event-driven program has to be decomposed into multiple event handlers and represented as some form of state mac ...
ppt
ppt

... generally we have tuple types with any number of components. The components can be extracted by means of projection functions. Product types more often appear as record types, which attach a label or field name to each component. Example (Ada): ...
Chapter 1
Chapter 1

... 5. Announce the answer is the number indicated by the counter. ...
Chapter 1
Chapter 1

... 5. Announce the answer is the number indicated by the counter. ...
Chapter 1
Chapter 1

... • A text editor is used to edit and save a Java source code file. • Source code files have a .java file extension. • A compiler is a program that translates source code into an executable form. © 2012 Pearson Education, Inc. All rights reserved. ...
Slides
Slides

... which must be polymorphic No argument can ever be used more than none polymorphic context. All types have the forall on the outermost forall a . ( x -> (a -> b) -> (x,b)) as opposed to x -> (forall a . a -> b) -> (x,b) Lecture 8 ...
Just-in-time compilation for SQL query processing
Just-in-time compilation for SQL query processing

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introduction to computers
introduction to computers

... (b) List two resources/ components that an operating system manages (c) There are several types of operating systems in use today. State two examples of Operating systems which you are familiar ...
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... public interface Flys { String fly(); } class ItFlys implements Flys{ public String fly() { ...
Paradigms
Paradigms

... almost complete. Bugs will be highly embarrassing or worse. Compilers with strict type checking and the use of test protocols are prominent. Correct adherence to spec is very important, as is maintainability of code. Code optimization for performance is often an issue. CSE 341 -- S. Tanimoto Paradig ...
Paradigms
Paradigms

... almost complete. Bugs will be highly embarrassing or worse. Compilers with strict type checking and the use of test protocols are prominent. Correct adherence to spec is very important, as is maintainability of code. Code optimization for performance is often an issue. CSE 341 -- S. Tanimoto Paradig ...
ppt
ppt

... has a precise form, called its syntax Every structure in programming language has a precise meaning, called its semantics. (What does the computer do when that structure is executed?) Python Programming, 2/e ...
A Survey on SDN Programming Languages: Toward a Taxonomy
A Survey on SDN Programming Languages: Toward a Taxonomy

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The dangling else ambiguity (cont.)
The dangling else ambiguity (cont.)

... • Difference between natural language and programming language: • A natural language evolves through usage It's evolution is not controlled --------------------------------------------------------------• A programming language is designed by one or a group of humans It's design is completely control ...
Basic Concepts
Basic Concepts

... example, should compile and run on just about any computer, unless it makes specific references to library functions that only exist under a single operating system. A major feature of the Java language is that compiled programs run on nearly any computer system. Assembly language, on the other hand ...
minimizing unnecessary right ventricular pacing in an icd
minimizing unnecessary right ventricular pacing in an icd

... testing whether DDD programming with AVSH has similar outcomes compared to VVI programming. A Guidant VITALITY AVT ICD is implanted and programmed DDDR 60-130 with AVSH. At 1 week, if %RV pacing exceeds 20%, participants are placed in an observational arm with ICDs programmed at investigator discret ...
More Lambda Calculus
More Lambda Calculus

... • All are based on the equation (λ λ x. e1) e2 =β [e2/x]e1 usually read from left to right • This is called the β-rule and the evaluation step a β-reduction • The subterm (λ x. e1) e2 is a β-redex • We write e →β e’ to say that e β-reduces to e’ in one step • We write e →β* e’ to say that e β-reduce ...
Ppt - Computer Science and Electrical Engineering
Ppt - Computer Science and Electrical Engineering

... come up with "the most powerful language in the world" in "a single page of code". • In 1980, Smalltalk 80, a uniformly object-oriented programming environment became available as the first commercial release of the Smalltalk language • Pioneered the graphical user interface everyone now uses • Indu ...
Chapter 1
Chapter 1

...  An algorithm is a set of well-defined instructions for accomplishing a task (e.g., S’mores algorithm for making s'mores)  When we write computer program, we are generally implementing a method (an algorithm) devised previously to solve some problem.  A computer program is a sequence of instructi ...
Introduction, Functions
Introduction, Functions

... A type is a category of values. Types of functions contain arrows. When we write an expression (example: invert knight) then Haskell will complain if it can't make sense of the types. ...
Revisiting APL in the Modern Era
Revisiting APL in the Modern Era

... syntax and strange symbols in its code. While programmers used to other programming languages may encounter an initial barrier due to these symbols, we believe that APL is worth the learning curve and that one quickly crests this particular hill. APL has a simple, consistent syntax and semantics cou ...
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Abstraction (computer science)

In computer science, abstraction is a technique for managing complexity of computer systems. It works by establishing a level of complexity on which a person interacts with the system, suppressing the more complex details below the current level. The programmer works with an idealized interface (usually well defined) and can add additional levels of functionality that would otherwise be too complex to handle. For example, a programmer writing code that involves numerical operations may not be interested in the way numbers are represented in the underlying hardware (e.g. whether they're 16 bit or 32 bit integers), and where those details have been suppressed it can be said that they were abstracted away, leaving simply numbers with which the programmer can work.In addition, a task of sending an email message across continents would be extremely complex if you start with a piece of optic cable and basic hardware components. By using layers of complexity that have been created to abstract away the physical cables, network layout and presenting the programmer with a virtual data channel, this task is manageable.Abstraction can apply to control or to data: Control abstraction is the abstraction of actions while data abstraction is that of data structures. Control abstraction involves the use of subprograms and related concepts control flows Data abstraction allows handling data bits in meaningful ways. For example, it is the basic motivation behind datatype.One can view the notion of an object as a way to combine abstractions of data and code.The same abstract definition can be used as a common interface for a family of objects with different implementations and behaviors but which share the same meaning. The inheritance mechanism in object-oriented programming can be used to define an abstract class as the common interface.The recommendation that programmers use abstractions whenever suitable in order to avoid duplication (usually of code) is known as the abstraction principle. The requirement that a programming language provide suitable abstractions is also called the abstraction principle.
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