page_title: Paolo Ruffini
section_title: Publications
hierarchical_section_title: Paolo Ruffini / Publications
caption_attribution_description: Italiano: Teoria generale delle equazioni, in cui si dimostra impossibile la soluzione algebraica delle equazioni generali di grado superiore al quarto di Paolo Ruffini. Parte prima [-seconda]. 1. - Bologna&#160;: nella stamperia di S. Tommaso d'Aquino, 1799. - VIII, 206, [4] p. .
context_page_description: Paolo Ruffini was an Italian mathematician and philosopher.
  By 1788 he had earned university degrees in philosophy, medicine/surgery, and mathematics. Among his work was an incomplete proof that quintic equations cannot be solved by radicals, and Ruffini's rule which is a quick method for polynomial division. Ruffini also made contributions to group theory in addition to probability and quadrature of the circle.
  He practiced as both a professor of mathematics and a medical doctor including scientific work on typhus.
context_section_description: 1799: "Teoria Generale delle Equazioni, in cui si dimostra impossibile la soluzione algebraica delle equazioni generali di grado superiore al quarto" (General Theory of equations, in which the algebraic solution of general equations of degree higher than four is proven impossible).
  1802: "Riflessioni intorno alla rettificazione ed alla quadratura del circulo" (Reflections on the rectification and the squaring of the circle)
  1802: "Della soluzione delle equazioni algebraiche determinate particolari di grado superiore al quarto" (On the solution of certain determined algebraic equations of degree higher than four)
  1804: "Sopra la determinazione delle radici nelle equazioni numeriche di qualunque grado" (Above the determination of the roots in the numerical equations of any degree)
  1806: "Della immortalità dell’anima" (On the immortality of the soul)
  1807: "Algebra elementare" (Elementary algebra)
  1820: "Memoria sul tifo contagioso" (Essay on contagious typhoid)
  1821: "Riflessioni critiche sopra il saggio filosofico intorno alle probabilità del signor conte Laplace" (Critical reflections on the philosophical essay about probability by Count Laplace)
caption: Teoria generale delle equazioni, 1799
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