English Wikipedia - The Free Encycl...
Download this dictionary
Nikolai Lobachevsky
Nikolai Ivanovich Lobachevsky
(; – ) was a
Russian
mathematician
and
geometer
, known primarily for his work on
hyperbolic geometry
, otherwise known as
Lobachevskian geometry
.
See more at Wikipedia.org...
© This article uses material from
Wikipedia
®
and is licensed under the
GNU Free Documentation License
and under the
Creative Commons Attribution-ShareAlike License