hyperbola

• n. [数] 双曲线
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hyperbola 双曲线

hyper-,超过的，向上的，-bola,扔，词源同ball,ballet,ballistic.即向上扔的，用于指双曲线。

hyperbola (n.)
1660s, from Latinized form of Greek hyperbole "extravagance," literally "a throwing beyond" (see hyperbole). Perhaps so called because the inclination of the plane to the base of the cone exceeds that of the side of the cone.
1. A hyperbola approaches but does not meet its asymptote.

2. The relation between the chlorinity and porosity may be approximated by a hyperbola.

3. The method uses small random samples and the limits of a hyperbola.

4. Another is to intenerate the input vectors by hyperbola tangent function.

5. Construct hyperbola and the ellipse by taking the inversion.
[利用反逆法作双曲线及椭圆].