Lodovico Ferrari

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Ferrari, Lodovico


Born Feb. 2, 1522, in Bologna; died there 1565. Italian mathematician.

A student of G. Cardano’s, Ferrari discovered a method for solving fourth-degree algebraic equations through the introduction of an auxiliary unknown whose value is obtained from a cubic equation derived from the given equation. The method was published by Cardano in 1545.


Struik, D. J. Kratkii ocherk istorii matematiki, 2nd ed. Moscow, 1969. (Translated from German.)