How to: Use Data Types to Define Variables in VB.NET
Data types associated to the variables establish the content of data and size of areas used to store data. In VB.NET, the following data types are available for software developer:
Read More →How to: Transform a Mathematical Expression from Infix Writing to Postfix Writing in C++
Postfix writing (Reverse Polish Form) was made by Polish mathematician Jan Łukasiewicz. Particularities of this form of writing mathematical expressions are presented in […]. An algorithm for transforming a writing mathematical expressions from infix to postfix writing was developed by Edsger Dijkstra (Dijkstra Shunting Algorithm). Algorithm requires:
Read More →How to: Evaluate a Mathematical Expression in Postfix Writing in C++
Postfix writing […] is a form of representation of mathematical expressions in which arithmetic operatorsare written specified by operands.Advantages of postfix writing over prefix and infix writing: Highlights clear policy of making operations; Brackets for forcing priority for implementing operators are not necessary; Evaluations are easily performed by computer. Algorithm for evaluation of an expression […]
Read More →C and C++ library of functions and procedures for matrix (bidimensional arrays) processing – Read and Write functions
To realize a real computation of matrices it must exist in the first place the matrix or the matrices. Having created an inadequate object for work with it, the results would be unexpected. Therefore we must pay the necessary attention to those functions that are creating a matrix. In this way we won’t have any […]
Read More →C and C++ library of functions and procedures for matrix (bidimensional arrays) processing – Introduction
Library source: C and C++ library of functions and procedures for matrix processing Language: C / C++Date: 04.2002Authors: Catalin Boja si Niculescu SilviuLicense: Creative Commons Attribution 3.0 License This post main objective is to tackle a series of aspects regarding the creation of a library that contains functions necessary in resolving the problems with matrices. […]
Read More →How to create a simple motion animation in Flash CS3
This Flash CS3 tutorial shows how to create a Flash animation using Adobe Flash CS3 (for Flash CS4 see the next post, because there are some differences on the application interface).In this example we will create an animation based on Flash motion tweens that will move an object on the screen on a linear trajectory. […]
Read More →Adobe Flash CS3 and CS4 interface, basic commands and concepts
This post analyzes the interface of the two versions of Adobe Flash CS3 and CS4 because the number of similarities is too great to take them separately. Also, the examples and tutorials from this site, use most of the basic features that are found in both versions. The differences will be highlighted and described for […]
Read More →How to read application settings from the Web.config file of an ASP.NET Website
There are many situations, in the development of an ASP.NET application, when particular values must be made visible from different Web Forms or code routines. These values can represent: – global values or keys associated with an application setting;– connections strings for databases– passwords and hash values– URLs for Web Services The web.config file is […]
Read More →How to: Implement Operations on Stack and Queue Data Structures in C++
Stack is a logical data structure, its implementation in physical memory being made by using other data structures.The components of the stack data structure have the same data type, which means that the stack is a homogeneous data structure.There are two basic operations with stack: adding and removal of an item.Manner of implementation for operations […]
Read More →How to: Create a DLL – Dynamic Link Library in C++ as Visual Studio 2008 Project
Using DLL ensure productivity and/or financial gain in the software development process by reusing the source code written C++. Routines and/or programming components included in a DLL are referenced in the application without the need of their re-implementation in these applications. To build a DLL in C++ programming language as Visual Studio 2008 project, it […]
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How to create an animated GIF in Photoshop CS3 or CS4
The Graphics Interchange Format (GIF) is a digital image format used to store bitmaps. Since it was introduced in 1987, it has been largely used on World Wide Web to allow websites to include images in their pages. It is an efficient format because:• is limited to 8-bit indexed color• it has a good compression […]
Read More →How to: Optimize the Memory Space by Heap Memory Allocation in C++
Memory allocation at the applications run-time enables the use of a storage space, expressed in number of bytes, having the size of heap memory required for data storing defined by the variables. Compile-time allocation allows the reservation and use of storage space with predefined size expressed in number of bytes. In this situation, software developers […]
Read More →How to: Implement Arithmetic of Pointers in C++
In C++ programming language, memory areas can be accessed indirectly through pointer type variable […]. Also, available with a memory address, it ensures movement on memory areas from the memory address stored in the variable pointer. This is ensured by arithmetic operators and it is called arithmetic of pointers. Depending on the nature of arithmetic […]
Read More →How to: Apply the Arithmetic of Pointers and Access the Areas of Heap Memory in C++
Areas of heap memory are accessed via variables of pointer type […]. This kind of variable manages values of memory address type. Arithmetic of pointers […] involves the operators use to access the areas of heap memory. Allocating of heap memory areas is done by functions and/or operators implemented in programming language. In the below […]
Read More →How to: Define and Use the Pointers Variables in C++
The pointer type variables allow the accessing of memory areas with numerical content for the management of the values which represent memory addresses. The dimension of a pointer variable depends on the processor architecture.In the C++ programming language, the definition template of a pointer variable is:
Read More →How to: Use a DLL – Dynamic Link Library in C++ as Visual Studio 2008 Project
The usage of the programming elements included in DLL’s […] it is made in C++ applications by respecting the rules stated below.The usage of a DLL in the C++ programming language in the Visual Studio programming environment, it is made in the following way: Create a C++ project – type: Console application; Define the content […]
Read More →How to: Implement a Sparse Matrix Data Structure in C++ Using Simple Linked List
The storage structures for sparse matrixes are presented at […].The simply linked list is a linear data structure, formed by elements called nodes. A node is composed by two categories of fields: The field with the information necessary for processing; The field with the information for connecting with the successor node in the simply linked […]
Read More →How to: Implement Sparse Matrix Data Structure in C++ Using Array
The sparse matrix represents a special type of two-dimensional array consisting of a large number of elements from out of which a very high proportion is occupied by null elements. Thus, the classical declaration of a two-dimensional array in the C++ programming language leads to unnecessary use of memory by storing null values and of […]
Read More →Implementarea structurii de date Matrice Rara in C++ utilizand lista simplu inlantuita
Structurile de stocare a matricelor rare sunt prezentate la […].Lista simpla este o structura de date liniara, formata din elemente denumite noduri. Un nod este compus din doua categorii de campuri: Campul cu informatia necesara prelucrarii; Campul cu informatia de legatura cu nodul succesor in cadrul structurii de tip lista simpla; se defineste sub forma […]
Read More →Implementarea structurii de date Matrice Rara in C++ utilizand masive de date
Matricea rara reprezinta in tip special de masiv dimensional format dintr-un numar foarte mare de elemente din care o pondere foarte mare o ocupa elementele nule. Astfel, declararea clasica a unui masiv bidimensional in limbajul C++ conduce la utilizarea inutila a memoriei prin stocarea valorilor nule si a capacitatii de procesare. Declararea unei structuri de […]
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