Lodovico Ferrari

Lodovico de Ferrari
Born2 February 1522 (1522-02-02)
Bologna
Died5 October 1565(1565-10-05) (aged 43)
Bologna
NationalityItalian
Known forSolving the biquadratic equations
Scientific career
FieldsMathematics
Academic advisorsGerolamo Cardano
Niccolò Tartaglia, Terza risposta data a messer Hieronimo Cardano et a messer Lodovico Ferraro, 1547

Lodovico de Ferrari (2 February 1522 – 5 October 1565) was an Italian mathematician best known today for solving the biquadratic equation.

Biography

Born in Bologna, Lodovico's grandfather, Bartolomeo Ferrari, was forced out of Milan to Bologna. Lodovico settled in Bologna, and he began his career as the servant of Gerolamo Cardano. He was extremely bright, so Cardano started teaching him mathematics. Ferrari aided Cardano on his solutions for biquadratic equations and cubic equations, and was mainly responsible for the solution of biquadratic equations that Cardano published. While still in his teens, Ferrari was able to obtain a prestigious teaching post in Rome after Cardano resigned from it and recommended him. Ferrari retired when young at 42 years old, and wealthy.[1]: 300  He then moved back to his home town of Bologna where he lived with his widowed sister Maddalena to take up a professorship of mathematics at the University of Bologna in 1565. Shortly thereafter, he died of white arsenic poisoning, according to a legend, by his sister.[2]: 18 

Cardano–Tartaglia formula

In 1545 a famous dispute erupted between Ferrari and Cardano's contemporary Niccolò Fontana Tartaglia, involving the solution to cubic equations. Widespread stories that Tartaglia devoted the rest of his life to ruining Ferrari's teacher and erstwhile master Cardano, however, appear to be fabricated.[3] Mathematical historians now credit both Cardano and Tartaglia with the formula to solve cubic equations, referring to it as the "Cardano–Tartaglia formula".

References

  1. ^ Smith, D. E., History of Mathematics, Vol 1 (New York: Dover Publications, 1958), p. 300.
  2. ^ Gindikin, S., Tales of Mathematicians and Physicists (A. Shuchat, Trans.). Springer; 2007. ISBN 978-0-387-48811-0. p. 18.
  3. ^ Rothman, T., "Cardano v Tartaglia: The Great Feud Goes Supernatural".

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