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:

    Did ye not hear it?—No; ‘twas but the wind,
    Or the car rattling o’er the stony street;
    On with the dance! let joy be unconfined;
    No sleep till morn, when Youth and Pleasure meet
    To chase the glowing Hours with flying feet.
    George Gordon Noel Byron (1788–1824)

    Freedom is not an ideal, it is not even a protection, if it means nothing more than freedom to stagnate, to live without dreams, to have no greater aim than a second car and another television set.
    Adlai Stevenson (1900–1965)