François Viète
French mathematician and calendar reformer (1540-1603)
François Viète (French: [fʁɑ̃swa vjɛt]; 1540 – 23 February 1603), known in Latin as Franciscus Vieta, was a French mathematician whose work on new algebra was an important step towards modern algebra, due to his innovative use of letters as parameters in equations. Because of this, Viète is sometimes called "the father of modern algebraic notation". He was a lawyer by trade, and served as a privy councillor to both Henry III and Henry IV of France.
Biography
Early life and education
Viète was born at Fontenay-le-Comte in present-day Vendée. His grandfather was a merchant from La Rochelle. His father, Etienne Viète, was an attorney in Fontenay-le-Comte and a notary in Le Busseau. His mother was the aunt of Barnabé Brisson, a magistrate and the first president of parliament during the ascendancy of the Catholic League of France.
Viète went to a Franciscan school and in 1558 studied law at Poitiers, graduating as a Bachelor of Laws in 1559. A year later, he began his career as an attorney in his native town. From the outset, he was entrusted with some major cases, including the settlement of rent in Poitou for the widow of King Francis I of France and looking after the interests of Mary, Queen of Scots.
Begin with the source’s own compact description: “François Viète” is french mathematician and calendar reformer (1540-1603). The dossier treats that line as a proposition to test through François, Viète and French, not as a finished interpretation.
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Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated Jun 24, 2026. The linked authority identifier is Q188623. VIAF identifies the subject as 71409480. The Library of Congress control number is n82164680. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1540, 1603, 1558 and 1559.
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This entry incorporates text from “François Viète” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.