“degenerate quadric”的概念、定义、翻译、参考文献-科学参考

单词	degenerate quadric
释义	degenerate quadric Mathematics The quadric with equation ax² + by² + cz² + 2fyz + 2gzx + 2hxy + 2ux + 2vy + 2wz + d = 0 is degenerate if Δ‎ = 0, where $Δ = \| \begin{matrix} a & h & g & u \\ h & b & f & v \\ g & f & c & w \\ u & v & w & d \end{matrix} \| .$ The non‐degenerate quadrics are the ellipsoid, the hyperboloid of one sheet, the hyperboloid of two sheets, the elliptic paraboloid, and the hyperbolic paraboloid.
随便看	income elasticity of demand income expansion path income from employment income from self-employment income inequality income maintenance programme income method income redistribution income support income tax income velocity of circulation incommensurable incommensurate lattice incompatibilist incompatibility incompatible incompatible elements incompetent incomplete contract incomplete dominance incomplete information incomplete knowledge-based system incomplete markets incompleteness incompleteness theorems

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