32 lines
992 B
Markdown
32 lines
992 B
Markdown
---
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title: "C.a.R."
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chunk: 1/1
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source: "https://en.wikipedia.org/wiki/C.a.R."
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category: "reference"
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tags: "science, encyclopedia"
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date_saved: "2026-05-05T12:13:42.587198+00:00"
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instance: "kb-cron"
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---
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C.a.R. (Compass and Ruler), also known as Z.u.L. (Zirkel und Lineal), is a free and open source interactive geometry app that can do geometrical constructions in Euclidean and non-Euclidean geometry.
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The software is Java based.
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The author is René Grothmann of the Catholic University of Eichstätt-Ingolstadt.
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It is licensed under the terms of the GNU General Public License (GPL).
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== Assignments ==
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Assignments make possible to create Java applets, for a construction exercises.
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These applets can be used from the command line using the AppletViewer.
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(Previously, they could be run in a browser, but Java support in browsers has been disabled in recent years.)
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== See also ==
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GeoGebra
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CaRMetal
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Compass-and-straightedge construction
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== External links ==
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C.a.R.
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History of the C.a.R. |