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1893年,在喀山大学树立起世界上第一个数学家的塑像.这位令人景仰的数学家就是俄国伟大的学者、非欧几何的创始人之一罗巴切夫斯基(1792～1856).人们深知欧几里得的突出贡献,欧氏几何差不多是初等几何的代名词了.“过直线外一点恰好可以画出一条和已知直线平行的直线.”欧氏几
In 1893, the first mathematician in the world was erected at Kazan University. This admirable mathematician is one of the great Russian scholars and one of the founders of non-European geometry Robachevski (1792～ 1856). People are well aware of Euclid’s outstanding contribution. Euclidean geometry is almost synonymous with elementary geometry. “Beyond a straight line, you can draw a straight line parallel to a known straight line.”