The granulometer error can be corrected through calculating an integrated light energy distribution coefficient matrix.

系统误差可以通过计算积分式光能分布系数矩阵校正。

The reluctivity matrix is obtained by using the trigonometric function transformation and the form of coefficient matrix is simplified.

该方法适用于任意阶多项式描述磁化曲线的非线性谐波电磁场问 题的求解，并提高了计算的精度。

Using the notion of coefficient matrix and maximal element.We prove that the Lie algebra is semi-simple and it has no abelian two dimensional subalgebra.

利用系数矩阵和极大项，证明了这类李代数是半单李代数且没有二维交换子代数。

The time-varying and incommutable character of the coefficient matrix of periodically time-varying linear systems are the bottleneck of the design for high precision direct integration methods.

周期时变线性系统系数矩阵的时变性与不可交换性是其精细积分算法设计中的瓶颈。