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"MathPad is a general purpose graphing scientific calculator for the Macintosh. It uses text worksheets rather than simulating buttons on a hand held calculator. This live scratchpad interface allows you to see and edit your entire calculation. Formulas can be entered directly and different values can be plugged in for easy "what if" calculating."

From simple calculator operations to large-scale programming and interactive document preparation, Mathematica is the tool of choice at the frontiers of scientific research, in engineering analysis and modeling, in technical education from high school to graduate school, and wherever quantitative methods are used. Whether you need a sophisticated calculator or an integrated technical programming environment, Mathematica provides you with a complete solution. You can perform a single task - like analyzing data or solving a tricky differential equation - or develop an entire solution, prototype, or application.

Simple graphing calculator that will graph in cartesian or polar coordinate systems. Contains a simple graph paper printing utility for cartesian and polar graph paper. This version is the first release on CNET Download.com.

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.

online graphing calculator