多项式的阶

To solve the characteristic polynomial and the eigenvalues of square matrices with higher order normally is not an easy way.

1引言在高等代数中，求一个n阶方阵A的特征值时，常用的方法是求解A的特征多项式|λE-A|的根。

The research indicates that it can get very fine results that the series data of equally interval are filtered by the certain S-G filtering coefficients as long as choose the window data and the degree of polynomial approximation appropriately, and the relatively narrow scraggly part can be protected effectively.

研究表明，只要窗口数据和多项式拟合阶次选择恰当，所确定的S-G滤波系数对于等时间间隔的数据序列进行滤波能够获得很好的效果，并可有效地保护较窄的凸凹部分。

The problem isdiscussed and the error caused by using the approximate formula proves to be superior to that caused by using the homogeneous Taylor's polynomial and an expression is proved to be similatr to the remainder in Taylor's formula.

由讨论这个问题出发，证明了用这种近似式产生的误差，优于用同阶Taylor多项式产生的误差，并给出这个误差的一个类似于Taylor公式余项的表达式。

Taking mapping QTL that affect leaf age growth trajectories in rice of a DH population as an example, we used 3 biological meaningful submodels and 2 orders Legendre polynomial to model the mean vector of QTL genotypes and 11 stationary and non-stationary models to fit residual covariance matrix.

以水稻一个DH群体的叶龄性状为例，我们分别用3个具有生物学意义的子模型和2阶Legendre多项式去拟合QTL基因型的均方向量，用13个平稳和非平稳模型去描述剩余协方差的变化。

This paper is using that dielectric constant of nonabsorbent uniform transparent single layer thin film satisfies am fifth-degree polynomial to extract the refractive index and thickness from the ellipsometric equation.

采用椭偏法测试的单层均匀透射簿膜的介电常数满足一个五阶多项式方程，来求解薄膜的折射率和厚度，并且进行了详细的计算和讨论。

It considered three types of distortions, i.e., pincushion distortion, S distortion and image offset as a whole, and fitted the composite distortion of the images by the Nth order polynomial, and then obtained the optimum image correction coefficient by the least squares approach.

该方法统一考虑C臂投影图像的3种类型的失真——针垫失真、S型扭曲、图像偏移，利用N阶多项式拟合图像的复合失真，然后利用最小二乘法求解最优化校正系数，从而具有所需标记点数量较少，校正区域连续，步骤简单，易于在线使用的优点。

Polynomial Wigner distribution offsets the disadvantage of WD in that it generates artifacts when processing none-linear modulated signal or multi-component signal. PWD can get FM signal IF direction of arbitrary orders, also fits for multi-component signal.

多项式维格纳分布弥补了WD分析非线性调频信号或者多频率分量信号时容易产生交叉项的缺点，对于任意阶次的调频信号，它都可以得到清晰的IF的走向。

2D intra-nodal pin power is reconstructed using the modulation method with high polynomial expansion. Simpler calculation of the corner point flux is applied to improve the efficiency.

采用高阶多项式展开的调制方法对节块内的二维精细功率分布进行重构；由于采用更为简单的角点通量的计算方法，因而提高了计算效率。

Finally, a high-order orthogonal polynomial method is used to compensate the Pt resistor nonlinearity and the high precision of compensation is proved by comparison tests of the temperature measuring module and the absolute standard Pt resistance thermometer.

使用高阶正交多项式拟合法对Pt电阻的非线性进行了补偿，给出了该系统温度测量模块测量数据与一级标准铂电阻温度值的比较实验，在不同的温度点，该温度测量系统的最大误差为0.000 6℃。

Because of the error in this approximation by a fraction , and because of the higher-order terms in the polynomial for the moment of mean syzygy, the accumulator needs to be corrected by subtracting 1 once every 65 years or so.

由于在逼近时的误差只会出现在分数上，并且是此刻的平朔望多项式展开的高阶项目，累加器大约要经过65年才需要予以更正减除一天的误差。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。