As is typical with CAS, assignment is separated from equality. With Release 4.2 there is a full CAS window. The under the hood CAS converted to Reduce, so it has significantly more power. With release 4.0, the algebra view is presented in TeX so surds are maintained. In previous releases all formulas were converted to a decimal or integer approximation. It shows up in release 4.0 in the way algebraic descriptions are handled. The CAS capabilities of GeoGebra have been growing under the hood for a while. View 3: CAS (4.2) – Symbolic mathematics, functions of other variables (Along with the probability calculator, release 4.0 brings support for a substantial collection of probability distributions.) The function inspector and probability calculator are two of these tools. View 2:Pop-up tools (4.0) – Analysis of functions, with attention to probability and discrete mathĪnother shift with release 4.0 are a couple of tools that create their own popup display, giving information, but not creating objects in the standard views. These tools provide popup windows with visualizations and data for one, two, or more samples. The second, but more obvious change to the spreadsheet is the addition of tools for doing statistics on collections of data. This makes linear algebra more manageable. The subtle change with the spreadsheet in release 4.0 is that it easily allows data to be entered, then imported to another view as a list, list of points, or matrix. This means we tend not to have data driven questions because they are too hard to enter and edit. I think the curriculum we teach is significantly shaped by the kinds of problems we can easily have students write down and what we can do on tests. The subtle change is that it provides a reasonable interface fro entering and editing data. One of the indications that we are doing something new is this view has its own toolbar. The spreadsheet view appeared in release 3.2. View 1: The Spreadsheet view (4.0) – data entry and analysis, with attention to statistics and linear algebra. The reader may want to look at to find some more of those details. This release has a lot of new features, which are beyond the scope of this presentation. You can find more detailed information about this release in the release note. At the very least, it is a place to go to see what others have tried. It is a place where users from around the world post their GeoGebra files. Įveryone should also be aware of GeoGebraTube. It is also a place where you can find information on releases that are under development. It is a nice place to go when you have questions about using GeoGebra. Any GeoGebra user should be aware of the GeoGebra forum. It is useful to identify some general sources of information. We want to consider some of the new views that are either available with the latest release, 4.0, or are planned for the near future. Starting with release 4.0, the added capabilities add fundamentally new perspectives, so that GeoGebra is a more general, dynamic mathematical modeling tool. Through the years and versions, it has continued to add capabilities, to be easier and more intuitive to use, to do a better job of connecting an algebraic and geometric view. As suggested by its name, GeoGebra started as a program that brought together an algebraic and a geometric view of mathematical objects.
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