SCILAB

[ALMF]

SCILAB (Software Free, alternativo a MATLAB)

Dejo aquí link a la pág. de SCILAB, que es un lenguaje de programación de alto nivel para cálculo científico, interactivo de libre uso y disponible en múltiples sistemas operativos (Unix, GNU/Linux, Windows, Solaris, Alpha) desarrollado por INRIA (Institut National de Recherche en Informatique et Automatique) y la ENPC (École Nationale des Ponts et Chaussées) desde 1990. Scilab fue creado para hacer cálculos numéricos aunque también ofrece la posibilidad de hacer algunos cálculos simbólicos como derivadas de funciones polinomiales y racionales. Posee cientos de funciones matemáticas y la posibilidad de integrar programas en los lenguajes más usados (FORTRAN, Java y C y C++ ). Scilab fue hecho para ser un sistema abierto donde el usuario puede definir nuevos tipos de datos y operaciones entre los mismos.

Scilab viene con numerosas herramientas: Gráficos 2-D y 3-D, animación, Álgebra lineal, matrices dispersas, Polinomios y funciones racionales, Simulación: programas de resolución de sistemas de ecuaciones diferenciales (explícitas e implícitas), Scicos: simulador por diagramas en bloque de sistemas dinámicos híbridos, Control clásico, robusto, optimización LMI, Optimización diferenciable y no diferenciable, Tratamiento de señales, Grafos y redes, Scilab paralelo empleando PVM, Estadísticas, Interfase con el cálculo simbólico (Maple, MuPAD), Interfase con TCL/TK

Además se pueden agregar numerosas herramientas o toolboxes hechas por los usuarios como Grocer una herramienta para Econometría u Open FEM (Una caja de Herramientas para Elementos Finitos), hecha por INRIA.

Matlab™, the de facto standard for DSP system design and simulation, has two disadvantages: expensive and costs a lot. There are alternatives free softwares which is powerful and close to Matlab's functionality. One of these softwares is Scilab. This is not true " Matlab clones", because its not offer 100% compatibility with Matlab's "m-files".

Scilab has fundamental principals such as Matlab:

1. The use of matrices as a fundamental data type.
2. Built-in support for complex numbers.
3. Powerful built-in math functions and extensive function libraries.
4. Extensibility in the form of user-defined functions.

Scilab has many strengths, including excellent documentation and excellent support. For Windows users, Scilab is supplied not only as source code, but as a Windows binary. Scilab is mostly–but not completely–compatible with Matlab.

Scilab is an open source software. There are many ways to contribute to Scilab, and users are invited to share their experience of Scilab by submitting their own functions, toolboxes, documentation, user guides, translations etc. Your contribution to Scilab is welcome.

For getting more power, Scilab can also be connected with Labview™ with Scilab-Labview™ Gateway.

Overview

Scilab is a free opensource scientific software package for numerical computations, providing a powerful open computing environment for engineering and scientific applications. It is currently

used in educational and industrial environments around the world. Scilab is the responsibility of the Scilab Consortium, launched in May 2003. There are currently 18 members in the Scilab Consortium.

Scilab includes hundreds of mathematical functions with the possibility to add interactively programs from various languages (FORTRAN, C, C++, JAVA...). It has sophisticated data structures (including lists, polynomials, rational functions, linear systems...), an interpreter and a high level programming language. Scilab has been conceived to be an open system where the user can define new data types and operations on these data types.

A number of toolboxes are available with the system:
• 2-D and 3-D graphics, animation
• Linear algebra, sparse matrices
• Polynomials and rational functions
• Interpolation, approximation
• Simulation: explicit and implicit systems of differential equations solvers
• Scicos: hybrid dynamic systems modeler and simulator
• Classic and robust control, LMI optimization
• Differentiable and non-differentiable optimization
• Signal processing
• Graphs and networks
• Parallel Scilab
• Statistics
• Interface with Computer Algebra Maple
• Interface with Fortran, C, C++, Java, LabVIEW

A large number of contributions can be downloaded from Scilab Web site. Scilab works under Windows 9X/2000/XP/Vista, GNU/Linux, and most UNIX systems. Binary versions for these systems are freely available, along with the source code.

Cordiales Saludos

ALMF

[Juan Eduardo González Mejía]

Hola
Has usado open FEM, tienes algún manual para usarlo o un ejercicio hecho??


Un saludo
Juan