The article presents a Parser class in Java to evaluate algebraic expressions using fundamental algorithms for the construction of compilers, passing from the conversion of expressions from infix to postfix, the evaluation of postfix expressions, the evaluation for precedence of operators, parser algorithms of precedence and construction algorithm of precedence functions. The goal of the article is to write a lexical analyser in a conventional language of systems programming, using the possibilities of input and output of Java language in order to read expressions to evaluate from the input, to process them and to send the results to the output.

This work presents the design and implementation of a software whose name is IntegraLAB, which can be used as a tool to solve functions' integration problems, and for the solution of ordinary differential equations through applying numerical methods. As for its results, the software has been tested taking functions whose results are known, and have been presented in literature about numerical methods, and then contrasted with those obtained or given back by IntegraLAB. Accuracy and exactness have been found according to the expected results.

The problem that is approached in the present article is the following one: How to elaborate a communication fast and easy to understand and, simultaneously, oriented to the process control with a automated mixer? During the research development it will appreciate the main criterias to consider for its design, as well as the type of programming will be used. As result obtained a software SCADA whose Human Machine Interface (HMI) will be the contact of man with the process to control.

This article presents a program in C++ which defines a class of polynomial name in order to implement a data abstract type (TAD), a polynomial through a class that performs polynomials arithmetic with operations such as addition, the product of a constant by a polynomial, the product of a monomial by a polynomial and a polynomial derived. The program code is presented, and its details, features and limitations are discussed. Implementation is done in the Dev C++ 4.1 compilator; a GNU compilator with GPL licence.

The article presents the calculation of aerodynamic coefficients of an airship wing's design: sustentation and moment coefficient applying two methods of integration. As a theoretical part, the fine theory of the aerodynamic profile is used and as a calculation tool the MATLAB software is used, through programs which are presented in their respective files. Besides, the outcome of results reports are presented.

The objective of this work is to show fundamental concepts of computational geometry and one solution for the convex hull problem, using the Graham algorithm. The authors use the Java language programming in order to implement the solution.

The article focused the next problem: What physical and virtual instruments interact in an interface Human Machine in order to automate a prototype to the process of pastes and liquids?; the design includes the measured and the selection of devices. The implementation considers the SMAR'S SYSTEM 302 platform to the process supervision and control; As a result of this we have an automated module whose investment was returned by the CEMA's courses.

Ciencia, Tecnologia e Innovacion para el desarrollo nacional.

Ciencia, Tecnologia e Innovacion para el desarrollo nacional.

Fortaleciendo las capacidades para incrementar el capital intelectual

Ciencia, Tecnologia e Innovacion para el desarrollo nacional.

Ciencia, Tecnología e Innovación para el desarrollo nacional.

El 28 de julio del año actual se ha promulgado la Ley No. 28303, LEY MARCO DE LA CIENCIA, TECNOLOGÍA E INNOVACIÓN TECNOLÓGICA, esta ley declara de interés nacional el desarrollo, promoción, transferencia y difusión de la Ciencia, Tecnología e Innovación Tecnológica.

This article deals with a simplified application of flow through a ball valve by using the Cosmos/ Floworks 2001 Program.

En la actualidad, es indiscutible que el crecimiento sostenido de la economía de un país, debe estar soportado por estrategias tecnológicas concretas y coherentes. En muchos países, que hoy gozan de grados avanzados de desarrollo, la innovación es la regla y no la excepción.

It presents the way a computer data supported by concepts of discrete mathematics and test them using the programming languages ​​C and C + + are represented

Presents the mathematical foundations for analyzing algorithms to determine their efficiency, with which you can decide for one of several competing algorithms

The article presents a modern approach on the study of the data types supported by a computer. for the C + + language, data were grouped into classes of data which are studied and tested with sample programs.

The article presents the concepts that govern around the programming languages and the paradigms of the programming and the influence in the development of the software.

Ciencia, Tecnología e Innovación para el desarrollo nacional