Of or relating to geometric surfaces that are defined by quadratic equations.

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Of the second degree.

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A quantic of the second degree.

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(mathematics) A surface whose shape is defined in terms of a quadratic equation.

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(mathematics) Of or relating to the second degree; quadratic.

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Sentence Examples

(30) Hence the planes of constant quadratic moment Mk2 will envelop the quadric a2+b2+c2~~ (31)

The diameter of a quadric surface is a line at the extremities of which the tangent planes are parallel.

The physical properties of a heterogeneous body (provided they vary continuously from point to point) are known to depend, in the neighbourhood of any one point of the body, on a quadric function of the co-ordinates with reference to that point.

same is true of physical quantities such as potential, temperature, &c., throughout small regions in which their variations are continuous; and also, without restriction of dimensions, of moments of inertia, &c. Hence, in addition to its geometrical applications to surfaces of the second order, the theory of quadric functions of position is of fundamental importance in physics.

and therefore varies as the square of the perpendicular drawn from 0 to a tangent plane of a certain quadric surface, the tangent plane in question being parallel to (22).