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He developed [[non-Euclidean geometry]] independently of his rival the Hungarian mathematician Janos Bolyai, who developed the same concept at the same time. Non-Euclidean geometry is a system of geometry that rejects traditional Euclidean geometry's fifth postulate that parallel lines can never intersect. He also invented a method for finding the approximations of the roots of algebraic equations.

He developed [[non-Euclidean geometry]] independently of his rival the Hungarian mathematician Janos Bolyai, who developed the same concept at the same time. Non-Euclidean geometry is a system of geometry that rejects traditional Euclidean geometry's fifth postulate that parallel lines can never intersect. He also invented a method for finding the approximations of the roots of algebraic equations.

He is also the subject of a rather amusing song by the comedic musician, [[Tom Lehrer]].

 

 

He is also the subject of a rather amusing song by the comedic musician, [[Tom Lehrer]]. He is also the subject of a science fiction novel by Poul Anderson in which his ghost and the ghost of Bolyai help a group of wizards to navigate a non-Euclidean universe.  

[[Category: Mathematicians|Lobachevsky, Nikolai I]]

[[Category: Mathematicians|Lobachevsky, Nikolai I]]