Jinlu Liu
Abstract
The expression of a tangent cone family with one parameter about a quadric surface is discussed. the equation of the enveloping surface is given. Moreover, this method is used in the tangent problem,the general equation of the tangent plan about a quadric surface was obtained.
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The expression of a tangent cone family with one parameter about a quadric surface is discussed. the equation of the enveloping surface is given. Moreover, this method is used in the tangent problem,the general equation of the tangent plan about a quadric surface was obtained.
Key concepts: Tangent cone, Tangent, Quadric, Cone (formal languages), Mathematics, Surface (topology), Tangent stiffness matrix, Mathematical analysis