## Pascal in Ellipse

Pascal's theorem which B. Pascal has famously discovered at the age of 16 states that *if a hexagon is inscribed in a conic, then the three points at which the pairs of opposite sides meet are collinear.* Elsewhere there is an illustration of the Pascal's theorem on a circle, a proof based on Chasles' theorem and a direct proof in homogeneous coordinates. Being projective in nature, Pascal's theorem is valid for other conic sections, like *hyperbolas* and *parabolas*. The universality of the diagram led to the introduction of the term *Pascal's Mystic Hexagram* that stuck around.

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