The conditions of equivalence of negative definite quadratic form and negative semidefinitequadratic form are given according to their definitions and some properties of negative definitematrices are given too in the paper.
本文根据负定二次型与半负定二次型的定义给出了它们的若干等价条件,并讨论了负定矩阵的若干性
metric normal form of quadratic form
二次形式的度量标准形式
Mating Critically Infinite and Quasi-starlike Quadratic Polynomials
临界无限的类星形二次多项式的粘合
The Second Development System of Generator Support with Ring Type Beam in Hydroelectric Power Station;
水电站环形梁柱式机墩二次开发系统研究
An Inequality of Quadratic Form of the Three Variables Referring to the Three Triangle;
一个涉及三个三角形的三元二次型不等式
The Characteristic Values and the Standard Form of a Quadratic Form Represented with a Real Symmetrical Determinant;
实对称行列式表示的二次型的特征值与标准形
Special Integral Form of Order 2 Constant Coefficient Innomogeneous Linear Differential Equation;
二阶常系数非齐次线性微分方程特解形式
Research of the feedback adjustment interpolation algorithm for non-parameter form conic curve
非参数形式二次曲线反馈插补方法探讨
an equation of the first [second] degree
一 [二] 次方程式
They are not second-order approximations, but are exact for any amount of deformation.
它们不是二次近似，而是对任何变形量都成立的精确表达式。
An earlier policy of "One country, two systems"?;
“一国两制”的初步形式——对第二次国共合作的一种分析
The branch of algebra that deals with quadratic equations.
二次方程式论处理二次方程式的代数学的分支
Analysis on The Condition of Factorization of Inhomogeneous Dual-variable Quadratic Polynomials;
二元二次非齐次多项式因式分解的条件分析
Given a response surface equation in quadratic form, the Six Sigma Black Belt will be able to compute the stationary point.
给出一个二次方程式形式的响应曲面公式，6西格玛黑带应能计算出驻点。
A proof that broken-wheel graphic arrangements are quadratic
破轮图所决定构形为二次构形的证明
Inverse formula of polynomial automorphisms in plane Jacobi cojecture;
二元二次Jacobi猜想的求逆公式
second fundamental form of a surface
曲面的第二基本形式
Dibasic acids can form acid salts.
二元酸能形成酸式盐。
The Second form of Eisenstein Discriminance;
Eisenstein判别法的第二种形式