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GeoGebra is a dynamic mathematics software for schools that joins geometry, algebra and calculus. It is an interactive geometry system where you can do constructions with points, vectors, segments, lines, conic sections as well as functions and change them dynamically afterwards. In addition, equations and coordinates can be entered directly. GeoGebra has the ability to deal with variables for numbers, vectors and points, finds derivatives and integrals of functions and offers commands like Root or Extremum. These two views are characteristic of GeoGebra: an expression in the algebra window corresponds to an object in the geometry window and vice versa.

Free downloadable software "GraphCalc is an all-in-one solution to everything from everyday arithmetic to statistical analysis, from betas to Booleans, from cubes to calculus, from decimals to derivatives. GraphCalc combines all the features of a professional mathematics package with the simplicity of an easy to learn windows interface. It provides user-friendly help and tutorials to guide you through the easy and fun process of mastering GraphCalc. GraphCalc is ready to use out of the box. Don't bother reading the documentation. Just start the program and you'll see how easy it is to use."