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.
- 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.
|New to Linux? Read our Linux for Starters series.|
|The largest compilation of the best free and open source software in the universe. Supplied with our legendary ratings charts.|
|Hundreds of in-depth reviews offering our unbiased and expert opinion on software.|
|Alternatives to Google's Products and Services examines your options to migrate from the Google ecosystem with open source Linux alternatives.|
|Alternatives to Microsoft's Products and Services recommends open source Linux software.|
|Essential Linux system tools looks at small, indispensable utilities, useful for system administrators as well as regular users.|
|Linux utilities to maximise your productivity. Small, indispensable tools, useful for anyone running a Linux machine.|
|Home computers became commonplace in the 1980s. Emulate home computers including the Commodore 64, Amiga, Atari ST, ZX81, Amstrad CPC, and ZX Spectrum.|
|Now and Then examines how promising open source software fared over the years.|
|Linux at Home looks at a range of home activities where Linux can play its part, making the most of our time at home, keeping active and engaged.|
|Linux Candy opens up to the lighter side of Linux. Have some fun!|
|Best Free Android Apps. There's a strict eligibility criteria for inclusion in this series|
|These best free books accelerate your learning of every programming language|
|These free tutorials offer the perfect tonic to the free programming books series|
|Stars and Stripes is an occasional series looking at the impact of Linux in the USA|