查询词典 quadratic function

The experiment of intercrop maize and soybean was conducted in the field of intercrop wheat and green manure by using the ternary quadratic regression rotational combination design to study the effects of different maize planting density and sowing time of maize and soybean on their yield in middle altitude areas of Guizhou province.

小麦与绿肥分带种植，小麦收获绿肥翻埋后，在本地块采用三元二次回归旋转组合设计，进行玉米密度、播差期、玉米大豆带型配置试验，对贵州省中海拔地区玉米、大豆间作体系的产量效应进行研究。

The error of quadratic interpolation method on sine wave signal was analytically studied and numerical evaluated in this paper.

该文从理论分析和数值仿真两个方面，对二次插值算法在正弦信号分析中存在的误差进行了详细的研究，得到了误差范围的解析表达式。

This paper describes also quadratic interpolation and the method of transformation of coordinates used in the calculation.

计算中所运用的二次插值及座标变换方法，在文中作了介绍。

Quadratic interpolation method of calculation, other optimization approach.

二次插值的计算方法，其它优化设计方法的基础。

In the beginning of quadratic equations such as, x2-2=0,forced upon us the irrational number, and led to the study of methods of operating with radicals, and to the solution of radical equations.

而二次方程，例如x2-2=0的出现，让我们不得不接触无理数，同时也带来了对于求根方法，以及根方程的研究。

In this paper was obtained minimum point of sums of distances to isosceles triangle certainly was in median line of base of the triangle,and minimum point of quadratic sums of distances to every vextex in general triangle just was bara-center ofthe triangle.

对等腰三角形，得到了到各顶点距离之和的最小值点必在底边的中线上；对一般的三角形，获到了到各顶点距离平方和的最小值点就是三角形的重心。

The Quadratic-Orthogonal-Rotation-Combination is used to analysis the effect of Nitrogen, Phosphate,Kainite, Sulphur, Lemon acid and BR in this study.

本试验采用二次正交旋转组合设计对氮、磷、钾、硫、柠檬酸、油菜素内酯进行分析。

The Zn concentration in leaf and leafstalk increased with increasing Zn supply from 0 to 160 mgL^(-1), but had no increase or even decreased when the Zn supply was higher than 160 mgL^(-1). The Zn concentration in root exhibited a positive correlation with Zn supply and its exposure time, and the kinetic curve of Zn uptake fitted linear-quadratic model, i.e., fast linear uptake first and slow saturation uptake later, with the dividing point at about 1-2 hours' exposure, which could be related with the Zn adsorption on root cell wall and the Zn transportation across the cell membrane.

在0160 mgL^(-1) Zn处理下，植株叶片和叶柄Zn含量随Zn处理水平的提高显著增加，Zn浓度大于160 mgL^(-1)后，植株叶片和叶柄Zn含量不再随介质中Zn浓度的提高而增加，根系含Zn含量与介质中的Zn浓度和培养时间呈正相关，且根系Zn吸收动力学曲线具有二型性，即开始为快速的线性吸收，随后是较缓慢的饱和吸收，两者分界点约在12h，这可能分别与根细胞壁吸附Zn和Zn跨根细胞膜运输有关。

The third aspect: we consider comparison of Minimum Norm Quadratic Unbiased Estimator and ordinary least squares estimator of in the multivariate normal linear model Y ~ N{XB, V, where the design matrix A' need not have full rank and the dispersion matrix V can be singular.

使用的损失函数有二次损失函数、嫡损失函数和对称损失函数。论文基于以下三个准则：二次损失风险准则、嫡损失风险准则和对称损失风险准则，将MINQUE和LSE进行比较。

Why should anyone try to understand quadratic equations and the principles that lie behind solving them?

hellip；为什么会有人试着去理解二次方程和解答过程背后的原理呢？

I'm not an actor. I'm a professor of paleontology.

我不是演员，我是古生物学教授

Spider Network Web site that is a very image of the name.

网络蜘蛛即Web Spider，是一个非常形象的名字。