1922-2004
Olga Ladyzhenskaya
Russia
Olga Ladyzhenskaya was mathematician. She made fundamental contributions to partial differential equations and fluid dynamics.
Documented historical recordMath Adventures
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Math Heroes
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Showing 1–10 of 10 matching heroes.
1736-1813
Joseph-Louis Lagrange
Italy and France
Joseph-Louis Lagrange was mathematician and astronomer. He reformulated mechanics through energy methods and made major contributions to analysis, number theory, and optimization.
Documented historical record1749-1827
Pierre-Simon Laplace
France
Pierre-Simon Laplace was mathematician, astronomer, and physicist. He advanced celestial mechanics, probability, differential equations, and mathematical physics.
Documented historical record1752-1833
Adrien-Marie Legendre
France
Adrien-Marie Legendre was mathematician. He advanced number theory, elliptic integrals, least squares, and geometry education.
Documented historical record1646-1716
Gottfried Wilhelm Leibniz
German lands
Gottfried Wilhelm Leibniz was mathematician, philosopher, and inventor. He independently developed calculus notation and worked on binary arithmetic, logic, and mechanical calculation.
Documented historical record1885-1977
J. E. Littlewood
England
J. E. Littlewood was mathematician. He made major contributions to analysis, number theory, and inequalities, often in collaboration with G. H. Hardy.
Documented historical record1792-1856
Nikolai Lobachevsky
Russia
Nikolai Lobachevsky was mathematician and educator. He developed a consistent non-Euclidean geometry in which the parallel postulate is replaced.
Documented historical record1815-1852Featured
Ada Lovelace
England
A mathematical writer who examined how a general-purpose calculating engine could follow symbolic procedures and work beyond ordinary arithmetic tables.
Documented historical record1910-1985
Hua Luogeng
China
Hua Luogeng was mathematician and educator. He contributed to number theory, analysis, and optimization and promoted practical mathematical methods in industry.
Documented historical recordBiblical era; date uncertain
Lydia
Philippi and Thyatira in the Roman world
Lydia was a merchant dealing in valuable purple goods. Trade required inventory counts, pricing, unit costs, currency conversion, transport planning, and judgment about demand.
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