C.a.R.

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:

    Fifty years from now, it will not matter what kind of car you drove, what kind of house you lived in, how much you had in your bank account, or what your clothes looked like, But the world may be a little better because you were important in the life of a child.
    —Anonymous. Quoted in The Winning Family, by Louise Hart, ch. 1 (1987)

    Raising children is a spur-of-the-moment, seat-of-the-pants sort of deal, as any parent knows, particularly after an adult child says that his most searing memory consists of an offhand comment in the car on the way to second grade that the parent cannot even dimly recall.
    Anna Quindlen (b. 1952)