C.a.R. is a dynamic geometry program simulating compass and ruler constructions.
C.a.R. means Compass and Ruler and is about constructions with a pair of compasses and a straight edge (ruler). The software is ideal for basic constructions but it also makes it possible to build very complex geometrical figures.
This software is intended to be used in schools and universities. It provides a rich graphical interface, with web export, graphics export, macros, assignments, animations and more. There is a comprehensive online help feature.
Key Features
- Ruler and compass constructions can be changed by dragging one of the basic construction points. The student can check the correctness of the construction and gain new insights.
- Tracks of points and animated constructions can help to understand geometric relations. Tracks can be used as new objects to explore.
- With the macros of C.a.R. very complicated constructions become possible. Macros are also a good way to organize the geometric thinking.
- Hiding construction details and using colors make constructions clearer to read. In C.a.R., lines and circles can also be reduced to the relevant points.
- Arithmetic computations, numerical solutions, curves and functions go beyond classical constructions.
- Construct in 3D using advanced macros.
- Other geometries, hyperbolic or elliptic, can be explored.
Website: sourceforge.net/projects/zirkel
Support:
Developer: Rene Grothman
License: GNU General Public License v2.0
C.a.R. is written in Java. Learn Java with our recommended free books and free tutorials.
Related Software
| Geometry Software | |
|---|---|
| GeoGebra | Dynamic mathematics software for learning and teaching |
| Kig | KDE4 software for exploring geometric constructions |
| Dr. Geo | Interactive geometry software |
| SINGULAR | Commutative algebra system for polynomial computations |
| Macaulay2 | Supporting research in algebraic geometry and commutative algebra |
| polymake | Research in polyhedral geometry |
| C.a.R. | Dynamic geometry program for use in schools and universities |
| Geomview | For mathematics research and education |
| Geometria | Interactive software for creating and solving problems in 3D gemoetry |
| JGEX | Construct, explore and prove geometry theorems |
Read our verdict in the software roundup.
 Explore our carefully curated directory of recommended free and open source software, covering every major software category.The directory forms part of our extensive collection of articles for Linux enthusiasts. It includes hundreds of detailed reviews, together with free and open source alternatives to proprietary software from companies such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. LinuxLinks also covers interesting projects worth exploring, Linux-compatible hardware, free programming books and tutorials, and much more. Know a useful free and open source Linux application that we haven’t covered? Tell us about it using our submission form. |
Please read our Comment Policy before commenting.