Conic section

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Types o conic sections:
1. Parabola
2. Circle an ellipse
3. Hyperbola

In mathematics, a conic section (or just conic) is a curve obtained as the intersection o a cone (mair precisely, a richt circular conical surface) wi a plane. In analytic geometry, a conic mey be defined as a plane algebraic curve o degree 2. Thare are a nummer o ither geometric definitions possible. Ane o the maist uisefu, in that it involves anly the plane, is that a conic consists o those pynts whose distances tae some pynt, cried a focus, an some line, cried a directrix, are in a fixed ratio, cried the eccentricity.