We detail here the proof related features. Sequences, 2D & 3D, human readable file formatįunctions & function plots, symbolic differentiation, mathematical notationįolding, cutting, taping, marker, and working instrument models.Ĭollaborative sessions over the internet.įeatures related to macro constructions: (TODO) Website for exported HTML5 Canvas and JavaScript Interactive Apps (Euclid's Muse). Symbolic calculations, which can be copied as input for CAS, TeX, and source code in 21 formats/languages. Interactive proof, diagram checking, teacher/student models, labels with dynamic placeholders The following table provides a more detailed comparison :ĢD and 3D, projective and conformal, Geometric Algebra.
GEOMETERS SKETCHPAD ACTIVITIES MAC OS
Windows, Linux, Mac OS X, Android, iOS, Windows RT
The following table provides a first comparison of the different software according to their license and platform. For a related, comparative physical example of these algorithms, see Lenart Sphere. Nearly all of the following programs are DGEs. The main example of a supposer is the Geometric Supposer, which does not have draggable objects, but allows students to study pre-defined shapes. Most are DGEs: software that allows the user to manipulate ("drag") the geometric object into different shapes or positions. There are three main types of computer environments for studying school geometry: supposers, dynamic geometry environments (DGEs) and Logo-based programs. This was soon followed by Cabri in 1986 and The Geometer's Sketchpad.
The earliest IGS was the Geometric Supposer, which was developed in the early 1980s. After some construction is done, one can move the points one started with and see how the construction changes. In most IGS, one starts construction by putting a few points and using them to define new objects such as lines, circles or other points. Interactive geometry software (IGS) or dynamic geometry environments (DGEs) are computer programs which allow one to create and then manipulate geometric constructions, primarily in plane geometry.
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