到1545年，卡达诺编写了有关二次方程的著作。
By 1545, Gerolamo Cardano compiled the works related to the quadratic equations.
抛物线曲线对应一个二次方程序曲线。
某些二次方程没有实数根。
在高中代数学里，你学习了标准二次方程序。
In high-school algebra, you learned that the standard quadratic equation.
叶面积消长动态符合一元二次方程变化曲线；
The dynamics of leaf area accorded with the curves of second-order equation.
从而解决了任意一元三次方程的实数根的分布的问题。
Thus solves the distributed problem of optional simple cubic equation's real root.
这是一个x的二次方程，也是一个抛物线方程式,抛物线都长这样。
It's a second-order equation in x, and is a parabola and a parabola has this shape.
本文将三次方程简化为二次方程，使计算得到很大简化。
In this paper, the cubic equation is simplified into a quadratic equation, thus greatly simplifying the calculation.
况且，在平衡计算中常常发生比四次方程还高的高次方程。
Moreover equations of degree higher than quartic often arise in equilibrium calculations.
相反，不带女儿来上班，她们是可以在学校里解二次方程的。
The girls , by comparison , would be at school learning how to solve quadratic equations.
得到了一些方程振动的充分条件，推广了某些齐次方程的振动结果。
The author gets some sufficient conditions for the equations to oscillate and generalizes the result of oscillation of some homogeneous equations.
在工作中能运用高等数学概念，如指数，对数，二次方程序和排列。
Ability to apply advanced mathematical concepts such as exponents, logarithms, quadratic equations, and permutations.
结合成本模型法，介绍一元高次方程的迭代解法，便于有关人员采用。
This paper uses the cost model method to introduce the iteration algorithm of monobasic high power equation which is convenient to use.
这是一个两次方程，你会得到两个，和物理无关的答案，你可以舍掉那一个。
It is a quadratic equation, so you get two solutions of which one of them is nonphysical, so you can reject that one.
以后代数中的种种推论都很枯燥，包括二次方程序，我这辈子从未用过它。
Everything in algebra was boring extrapolation after that, including the quadratic equation, which I have never used in my life.
调查问卷的统计结果显示，我国大学受赠量模型的一般形式为三次方程式。
The questionnaire concludes that the model of quantity is a cubic equation.
在原有精细积分法的基础上，对非齐次方程出现奇异矩阵的问题进行探讨。
Based on the original precise integration method, the problem that singular matrix appears in non-homogeneous equation was discussed.
根据经典力学和德布罗意理论，运用四次方程理论，推出了圆锥摆的能谱。
According to classical mechanics and DE Broglie theory, this paper USES quadruplicate equation theory, and deduces the energy spectrum of conical pendulum.
给出一个二次方程序形式的响应曲面公式，六西格玛黑带应能计算出驻点。
Given a response surface equation in quadratic form, the Six Sigma Black Belt will be able to compute the stationary point.
多项式回归分析表明，花粉可育率对特效烯浓度和播期的反应是二元二次方程。
Polynomial regression analysis indicated that the reaction of fertile pollen rates to tetcyclacis concentrations and dates showed a quadratic relationship.
通过2种方法对GFR 进行估算：肾脏疾病饮食修正方程和梅约医疗中心二次方程。
GFR was estimated by 2 methods: the Modification of Diet in Renal Disease and the Mayo Clinic quadratic equation.
本文采用求解非齐次方程组的广义黎曼问题解，对模型数值通量计算格式进行了修改。
In hydrodynamics, however, the scheme for numerical flux is constructed from the solution of the generalized Riemann problem in the present research.
本文用四次方程代替常用的几个二次方程曲线的回转体，来描述对称裂交的大形变过程。
In the paper, large deformation of symmetry fission has been described by a biquadratic surface revolution instead of several quadratic equations.
该文通过引入三元一次方程机制，改进了“双参数假说”，尝试提出了“等级参数假说”。
By improving Ais hypothesis this paper brought in three-variable linear equation and put forth the hypothesis of .
将非齐次方程转化为齐次方程不仅使问题变得大为简化，同时也减少了数值计算的工作量。
The treatment, by which the non-homogeneous equation was transformed into homogeneous equation, not only simplifies.
说明：关于c语言中一些常见的问题的源代码，例如，冒泡排序，水仙花数，求二次方程等。
C language on some common problems of the source code, for example, bubble sort, daffodils, seeking quadratic equations, etc.
作者根据钢铁酸洗原理、膜分离工艺研究结果和工程实践经验，提出了多元一次方程求解法。
Based on pickling principle, research results of membrane separation process and experience of engineering practice, the author developed a method of solving equations in multiple variables.
首先将非线性薛定谔方程变形为齐次方程的形式，然后用精细积分法模拟其随时间的演化过程。
First of all, a non-linear Schrodinger equation can be converted into homogeneous equations, and then the precise integration method can be used to solve these problems.
首先将非线性薛定谔方程变形为齐次方程的形式，然后用精细积分法模拟其随时间的演化过程。
First of all, a non-linear Schrodinger equation can be converted into homogeneous equations, and then the precise integration method can be used to solve these problems.
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