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Hyperboloid
In
mathematics
, a
hyperboloid
is a
quadric
, a type of surface in three dimensions, described by the equation:
<math>{x^2 \over a^2} + {y^2 \over b^2} - {z^2 \over c^2}=1</math>
(hyperboloid of one sheet),
or
<math>{x^2 \over a^2} + {y^2 \over b^2} - {z^2 \over c^2}=-1</math>
(hyperboloid of two sheets).
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