eccentric circles

eccentric circles

[ek¦sen·trik ′sərk·əlz]
(mathematics)
For an ellipse, two circles whose centers are at the center of the ellipse and whose diameters are, respectively, the major and minor axes of the ellipse.
For a hyperbola, two circles whose centers are at the center of symmetry of the hyperbola and whose diameters are, respectively, the transverse and conjugate axes of the hyperbola.
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References in classic literature ?
The other bounded round in an eccentric circle with shrill, wailing cries, and then lying down writhed in agony for some minutes before it also stiffened and lay still.
A motor moves the ring in eccentric circles, thus agitating the flexible liner and preventing material bridging.
Eccentric circles Joseph Williamson Built network of city tunnels Lord William Hesketh Lever His bedroom was in the open air Screaming Lord Sutch Monster Raving Loony Gerald Nabarro Moustachioed MP Dr Fun Extravagantly dressed Reds fan
Almost the first thing you see, is Marcel Duchamp's rotorelief of a disc with slightly eccentric circles of hatched red, black and white.
Despite becoming very rich and influential in eccentric circles, these dinosaurs' brains tended to remain remarkably small.