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Alguém conhece algum bom software de matemática disponível para download?Procurei na web e achei o GeoGebra, é bem interessnate, mas parece meio limitado.
Depende do que você tem em mente. Você precisa de um programa que faça cálculo numérico ou simbólico? De cálculo numérico gratuito eu conheço o Scilab e o Octave, os dois seguem mais ou menos a mesma linha que o Matlab, embora, claro, sejam bem mais limitados que o software comercial. De cálculo simbólico eu não conheço nenhuma ferramenta gratuita, só os tradicionais Maple, Mathcad e Mathematica.O Scilab e o Octave são encontrados respectivamente nos seguintes links:http://www.scilab.org/http://www.gnu.org/software/octave/
SAGESAGE is the new star on the open-source math sky. Essentially it is a CAS written in Python, but it provides interfaces to many math programs available. This includes commercial programs like Mathematica and Maple as well as free programs like Maxima, Octave or Singular.From the homepage:Each interface requires that the corresponding software is installed on your computer. SAGE includes GAP, PARI, Singular, and Maxima, but does not include Octave (very easy to install), MAGMA (non-free), Maple (non-free), or Mathematica (non-free).SAGE runs as service on your server or desktop and you use your browser to interact with it (you can also use the command-line interface, though). It is very well documented and gives you access to the source code of the algorithms right within your browser.Use SAGE for studying a huge range of mathematics, including algebra, calculus, elementary to very advanced number theory, cryptography, numerical computation, commutative algebra, group theory, combinatorics, graph theory, and exact linear algebra.The goal of the SAGE project, which started 2005, is to provide the best mathematical software in the world.SAGE is pretty large (on my Mac it uses 722MB right after the installation), but you can find even more (optional packages etc) at their homepage.It’s also possible to interact with it via Texmacs or Emacs (again, available from their download page).SAGE is available for Windows, Linux and Mac OS X.