Definitionn. a plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the curve
Last update: July 18, 2015
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(6) The Quadrature of the Parabola (Tetragonismos paraboles) is a book in twenty-four propositions, containing two demonstrations that the area of any segment of a parabola is a of the triangle which has the same base as the segment and equal height. [Please select]
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A heavy silver match-box was tossed in a parabola through the air. [Please select]
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But we proceed to the conjecture that comets describe a parabola, a figure which is closely allied to the ellipse. [Please select]
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In fact, a parabola is merely an ellipse, with its longer axis produced to an indefinite extent. [Please select]
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But from the right pocket a piece of paper flew out and describing a parabola in the air fell at Luzhin's feet. [Please select]
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Straight and strong it flew, describing a wide parabola ere it thudded into the road. [Please select]
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The same speculations take up the parabola once more, imagine it rolling on an indefinite straight line and ask what course does the focus of this curve follow. [Please select]
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