Arageli(3rd August, 2006): C++ template library for computations in ARithmetics, Algebra, GEometry, Linear and Integer linear programming. Supports arbitrary length integers, rationals, vectors, matrices, polynomials etc.
Eigenmath(27th April, 2005): Symbolic mathematics for Windows, MacOSX. A sourceforge open-source project.
Mathomatic Home Page(27th April, 2005): A general purpose CAS for DOS, Windows, and Linux/UNIX. C source code under LGPL.
HPCC Software Exchange(27th April, 2005): A distributed collection of software, documents, data, and information for the high performance and parallel computing community.
O-Matrix(27th April, 2005): A matrix-based scripting language and integrated computing environment. Win32. On-line ordering.
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Eigenmath (): Symbolic mathematics for Windows, MacOSX. A sourceforge open-source project.
Mathematical & Scientific Computing Software (): An environment for developing numerical computation programs and producing publication-quality documents with equations, graphs, and tables. Includes a program editor, a debugger, a scientific word processor, an equation editor, and a powerful high-level programming
OriginLab (): Data analysis and graphics software. Technical charts for scientists and engineers. 2D and 3D plotting, statistics, curve fitting, and peak fitting.