Guillaume de l'Hôpital

French noble and mathematician (*1661 – †1704)

  • Fame53.7
  • Momentum0.0
  • Wikipedia6.3K
Source-basedStable
Lived 1661–1704, aged 43
AcademicsAcademic
  • Wikipedia
    51 languages
    Cross-language footprint
  • Era
    1661–1704
    Aged 43
Summary
Updated 2026-06-11

His name is on the rule every calculus student learns for rescuing limits that collapse into 0/0 — except he didn't invent it. He published it first, in 1696, and that was enough to make it his forever.

Biography

About

Guillaume François Antoine, Marquis de l'Hôpital was a French mathematician born 7 June 1661. In 1696 he published Analyse des Infiniment Petits pour l'Intelligence des Lignes Courbes, the first systematic exposition of differential calculus in print. The treatise introduced l'Hôpital's rule — the technique for calculating limits involving indeterminate forms 0/0 and ∞/∞ — though the rule itself originated elsewhere. The book went through several editions and translations, becoming the model for how calculus would be taught for generations. He died 2 February 1704, his name sealed to a method…

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Fame
Stable
53.7
Composite of search demand, mentions, audience & graph footprint.
Score components
Historical22.9
Source confidence60.0
Completeness60.0
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Sources

  • Wikidata
    wikidata · wikidata.org
    High confidence
  • Wikipedia
    wikipedia · en.wikipedia.org
    High confidence
  • Pantheon 2.0
    database · pantheon.world
    High confidence