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Graphmatica is an equation plotter which supports five types of planar graphs (including polar, parametric, logarithmic, inequalites and limited implicit plots), plots planar vector fields and solutions of the corresponding differential equations, unlimited graphs on screen at once, saving setup information and lists of equations, flexible grid labeling, lock-on coordinate cursor and several ways to resize the grid. Its calculus options include symbolic differentiation, drawing of tangent lines, and numerical integration (you use a mouse to select points and areas). Offers on-line help and demonstration files. grmat36d.zip is the DOS version (3.60), grmat16w.zip is the Microsoft Windows 3.1 version (1.60), and grmat16n.zip is the 32 bit or win32 version (1.60). This is a fully functional shareware package.

Mathcad offers you an integrated environment for performing and communicating your math-related work. It provides hundreds of operators and built-in functions for solving technical problems. Use Mathcad to perform numeric calculations or to find symbolic solutions. It automatically tracks and converts units and operates on scalars, vectors, and matrices. Integrated images, text, graphs, and mathematics means your whole solution is contained and documented in one place. Formatting options and style sheets let you prepare documents to exact specifications. Distribute your work in Mathcad, the Mathcad Client, print, or as MathML for the web.

Maple provides the single mathematical analysis environment for solving technical problems in the workplace, the research lab and in the classroom, including: The world's most respected symbolic solver; Stunning graphics generation and visualization tools; High-speed numeric solvers from The Numerical Algorithms Group; High-level, interactive programming language; Connectivity with the Web through TCP/IP sockets, MathML 2.0, and XML; Connectivity with other software tools.