In geometry, a cissoid is a curve generated from two given curves C1, C2 and a point O (the pole). Let L be a variable line passing through O and intersecting C1 at P1 and C2 at P2. Let P be the point on L so that OP = P1P2. (There are actually two such points but P is chosen so that P is in the same direction from O as P2 is from P1.) Then the lo...
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http://en.wikipedia.org/wiki/Cissoid
• (n.) A curve invented by Diocles, for the purpose of solving two celebrated problems of the higher geometry; viz., to trisect a plane angle, and to construct two geometrical means between two given straight lines.
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http://thinkexist.com/dictionary/meaning/cissoid/
A plane curve consisting of two infinite branches symmetrically placed with reference to the diameter of a circle, so that at one of its extremities they form a cusp, while the tangent to the circle at the other extremity is their common asymptote. Given a fixed point A and two curves C and D, the...
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http://www.daviddarling.info/encyclopedia/C/cissoid.html
Cis'soid noun [ Greek ... like ivy; ... ivy + ... form.]
(Geom.) A curve invented by Diocles, for the purpose of solving two celebrated problems of the higher geometry; viz., to trisect a plane angle, and to construct two geometrical means between two given straight lines.
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http://www.encyclo.co.uk/webster/C/83
a curve having a cusp at the origin and a point of inflection at infinity. Equation:= 2asin&thgr;tan&thgr;. r
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https://www.infoplease.com/dictionary/cissoid
No exact match found.
