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Nikolai Ivanovich Lobachevsky (/loʊbəˈtʃɛfski/; Russian: Никола́й Ива́нович Лобаче́вский, IPA: [nʲɪkɐˈlaj ɪˈvanəvʲɪtɕ ləbɐˈtɕefskʲɪj] ; 1 December [O...
- geometry,
named after one of its discoverers, the
Russian geometer Nikolai Lobachevsky.
Hyperbolic geometry is more
closely related to
Euclidean geometry than...
-
Nikolai Lobachevsky (1792–1856) was a
Russian mathematician.
Lobachevsky (Лобачевский; also
Lobachevskij and Lobachevskiy; feminine: Lobachevskaya), a...
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Lobachevsky Lehrer sings "
Lobachevsky"
Problems playing this file? See
media help. "
Lobachevsky" is a
humorous song by Tom Lehrer,
referring to the mathematician...
- The
Lobachevsky Prize,
awarded by the
Russian Academy of Sciences, and the
Lobachevsky Medal,
awarded by the
Kazan State University, are
mathematical awards...
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National Research State University of
Nizhny Novgorod named after N.I.
Lobachevsky, (Russian: Нижегородский национа́льный иссле́довательский госуда́рственный...
- x}{x}}f(x)\,dx} is
taken to be an
improper Riemann integral, we have
Lobachevsky's Dirichlet integral formula ∫ 0 ∞ sin 2 x x 2 f ( x ) d x = ∫ 0 ∞ sin...
- . The
Lobachevsky coordinates are
useful for
integration for
length of
curves and area
between lines and curves.[example needed]
Lobachevsky coordinates...
- was
developed independently by
Germinal Pierre Dandelin in 1826 and
Lobachevsky in 1834. In 1837 Karl
Heinrich Gräffe also
discovered the prin****l idea...
- geometry. Then, in 1829–1830 the
Russian mathematician Nikolai Ivanovich Lobachevsky and in 1832 the
Hungarian mathematician János
Bolyai separately and independently...
