Generally, a linear least squares problem leads to ihc solution of the so called normal equation.
解线性最小二乘问题时，通常都要解所谓正规方程。
The coefficient matrix of normal equation which is comr puted strictly is used as the standard of controlling accuracy.
用严格计算的法方程系数矩阵作为控制精度的标准。
A new iteration for solution normal equation is applied to GPS rapid positioning by using several-epoch single frequency phase data.
将一种求解病态法方程的新方法——谱修整迭代法应用于单频GPS接收机快速静态定位。
If the coefficient matrix of the normal equation is ill-conditioned, the statistical character of adjustment parameter will become poor.
当法方程的系数矩阵呈病态时，平差参数的统计性质就要变坏。
The causes of rank defect of normal equation are analyzed, and then the problems are solved by advancing different method to different causes.
分析了法方程出现秩亏的可能原因，针对不同的原因提出了解决办法。
Power system state estimation is usually formulated as a weighted least-squares problem and is solved iteratively by the normal equation method.
电力系统加权最小二乘准则的状态估计，通常采用正规方程法。
Parameters in Normal Equation are modified by using MATLAB and we can get the calculating model of K factor suitable for the Loess and Sandy slope soil of highway.
运用Matlab对诺模方程进行了修正，得到了适用于公路沿线地区黄土和风沙土高速公路边坡的土壤可蚀性因子K的计算模型。
By contrast with trial method, normal equation method and plan solution method, present solution has good convergence stability, practicability and higher calculation accuracy.
与普通的试算法、正规方程法、规划求解法等数解法及图解法相比，该算法具有良好的收敛稳定性、方便实用性及较高的计算精度。
The strong interrelationship among exterior elements of linear pushbroom imagery induces normal equation severely ill-posed and least squares value deviated from the true value.
线阵推扫式影像外方位元素间的强相关性，导致法方程病态，外方位元素的最小二乘估计值误差较大。
The results show that the robust principal component estimation can not only overcome the ill condition of the normal equation. but also resist the outlier effects to the model parameters.
结果表明：抗差主成分估计不仅可以解除法方程系数降的病态，而且对于抑制观测粗差的影响也有显著功效。
Under general feasible set, in consideration of the algorithms for nonsmooth equations and the properties of projection map, the algorithms using the normal equation to solve are discussed.
在一般可行集下，结合非光滑方程组解法及投影映射的性质，讨论了法方程求解变分不等式问题的算法构成。
When we know two vectors in a plane, it let us find the normal vector to the plane, and that is what we need to find the equation.
当我们已知平面上的两个向量，我们就可以找到，这个平面的法向量，然后我们就可以用法向量来找到方程。
Theoretically speaking, it is a rather-clearly discussed subject to standardize the quadratic equation into the normal forms by spinning the coordinate axis so as to approach the shapes of its curves.
从理论上讲，通过坐标轴旋转将二次方程化简为规范形式，从而讨论其曲线的形状，这已是讨论得相当明了的课题。
Using the normal solutions of the governing differential equation, the general solution of a bending beam is obtained.
借助控制微分方程的标准基本解答组，获得梁弯曲问题初参数形式的通解。
Equivalent normal forms of the cavitated bifurcation equation at the bifurcation point were presented by using singularity theory.
利用奇点理论给出了空穴分岔方程在分岔点的等价正规形。
Objective To seek a more accurate equation via ultrasound measuring the local volumes for estimating the fetal body masses(EFBM) in under-, normal- and macrosomia masses.
目的通过超声测量胎儿身体局部体积求出能适用于低体质量儿、正常儿及巨大儿且较为准确的估计胎儿体质量（EFBM）公式。
The common method to quadric surface equation is to get the Normal Component first, and then write out the equation through dot method.
求切平面方程的一般方法是先求切平面的法向量(借助偏导)，再用点法式写出切平面的方程。
On the basis of the material balance equation, this paper develops a method to predict the formation pressure using cumulative production data for normal pressure confined gas reservoir.
以正常压力系统封闭气藏的物质平衡方程序为基础，建立一种利用累积产气量计算气藏地层压力的方法。
Objective: to establish the measurement method of the normal orbital and optic canal by ct scanned, and to explore the clinical value of the orbital volume and its regressive equation.
目的：建立正常人眼眶及视神经管骨性径线ct测量的方法，探讨CT测量眼眶容积及其回归方程的临床意义。
Based on the spatial distribution of magnetic dipole, the equation of the normal component of leakage magnetic field on the tube surface under low-intensity field was derived.
根据磁偶极子空间磁场分布，导出了在外部垂直方向弱磁场下管状工件表面细长缺陷产生的弱磁场法向分量的计算公式。
To obtain accurate normal modes quickly, the frequency dispersion equation was solved by an efficient numerical algorithm.
对于简正波，运用高效数值方法解频散方程，提高了简正波的计算精确和速度。
The singular integral equation technique is used to determine the normal modes of propagation in asymmetrical bilateral finlines.
本文利用奇异积分方程法计算出了非对称双面鳍线的传播常数。
According to the equation of asymptotic curves, a family of nonlinear asymptotic curves are given to the principal normal surface.
根据渐近曲线的方程，具体给出主法线曲面的一族非直线的渐近曲线。
For structural damage identification, it was described that the multi-scale dynamic equation can support more information of structural parameter variety than normal single dynamic equation.
面向结构损伤识别，描述了多尺度动力方程能获得更丰富的结构参数变化信息。
Meanwhile obtained the tooth profile equation of pin-track by the tooth profile normal law which matched the inviolate-cycloid compound gear.
同时利用齿廓法线法得出与该复合齿轮相配套的销轨齿廓方程。
The iteration equation of U-shaped channel normal depth and critical water depth in hydraulic calculation is deduced. The equation of boundary discharge to criterion water depth range is given.
导出了U形渠道正常水深、临界水深水力计算的迭代公式，并给出了判别水深范围的界限流量计算公式。
The sinplified space formula of the intensity distribution of pressure is developed, and the result ha shown that the equation is a two-dimensional Gauss' normal distribution equation.
结果表明，空间压强分布可以用一个二维高斯概率函数的曲面方程来表达。
The maximum pumping pressure equation is strongly practicable and can ensure the normal operation of each down hole ga...
最高泵注压力计算公式实用性强，能够保证酸化后井下各级气举阀正常工作。
Based on equation of cutting edges, new geometric model and NC grinding model of rake face of ball end mill with constant normal rake Angle are modeled.
本文基于刀刃曲线方程，推导了球头等法前角前刀面的几何模型及其数控磨削模型。
There is a high correlation between objective yield and normal yield, and the relation can be nicely expressed by empirical equation.
目标产量与基础产量的相关性较高，用经验公式能很好的表达；
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