Poncelet, Jean-Victor

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Poncelet, Jean-Victor Gender: M
born on 1 July 1788 at 20:00 (= 8:00 PM )
Place Metz, France, 49n08, 6e10
Timezone LMT m6e10 (is local mean time)
Data source
BC/BR in hand
Rodden Rating AA
Collector: Geslain
Astrology data s_su.18.gif s_cancol.18.gif 10°28' s_mo.18.gif s_gemcol.18.gif 14°21 Asc.s_capcol.18.gif 10°07'

Jean-Victor Poncelet


French engineer and mathematician who served most notably as the commandant general of the École polytechnique.

As a mathematician, his most notable work was in projective geometry, although an early collaboration with Charles Julien Brianchon provided a significant contribution to Feuerbach's theorem. He also made discoveries about projective harmonic conjugates; relating these to the poles and polar lines associated with conic sections. He developed the concept of parallel lines meeting at a point at infinity and defined the circular points at infinity that are on every circle of the plane. These discoveries led to the principle of duality, and the principle of continuity and also aided in the development of complex numbers.

He died on 22 December 1867 in Paris, France.

Link to Wikipedia biography


Source Notes

Baptism/birth certificate in Didier Geslain archive, 'officiers 1800-1918' pdf file, p. 43.


  • Vocation : Engineer : Other Engineer (Military)
  • Vocation : Science : Mathematics/ Statistics