C.a.R.Compass and Ruler (also known as Z.u.L., which stands for the German "Zirkel und Lineal") – is a free and open source interactive geometry software that can do geometrical constructions in Euclidean and non-Euclidean geometry. The software is Java based. The author is R. Grothmann of the Catholic University of Eichstätt, Germany. It is licensed under the terms of the GNU General Public License (GPL).

Famous quotes containing the word car:

    A car can massage organs which no masseur can reach. It is the one remedy for the disorders of the great sympathetic nervous system.
    Jean Cocteau (1889–1963)

    Giving money and power to government is like giving whiskey and car keys to teenage boys.
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