Computing the Inverse Transform of Some Common Signal Waveforms(ⅱ) The Inverse Transform of Triangular Wave with Even-Odd Symmetry and Rectifying Cosine Wave 几种常见信号波形的逆变换计算(Ⅱ)奇偶对称三角波与锯齿波和整流余弦波的逆变换
On the inverse matrix of the binary symmetry cyclic matrix 二元对称循环矩阵的逆矩阵
According to a know conserved quantity, the inverse problem of Lie symmetries of the nonholonomic mechanical systems with variant mass is considered, and the corresponding Lie symmetry is found out. 本文研究变质量非完整系统的Lie对称性逆问题:根据已知积分求相应的Lie对称性,具体研究了受Chetaev型和非Chetaev型非完整约束的变质量系统的Lie对称性逆问题。
It is studied that the inverse of the binary symmetry cyclic matrix and on the basis of given results it is further deduced and given that the expressions of the inverse matrix of another kind of binary symmetry cyclic matrix. 研究了二元对称循环矩阵的逆,并在已有结论的基础上进一步推导且给出了另一类二元对称循环矩阵逆矩阵的表达形式。
A simpler method is introduced to get the inverse matrix of symmetry cyclic matrix; with this method, two kinds of the basic formulas for finding the inverse matrix of the binary symmetry cyclic matrix are given. 首先介绍求对称循环矩阵逆矩阵的简便方法,然后用这种方法给出两类二元对称循环矩阵的求逆公式。
Secondly, the inverse problem of the Lie symmetry is discussed. 其次,讨论了Lie对称的逆问题。
Introducing the Lie group analytic method into controllable nonholonomic system, we present the variation principle of the system, the Noether symmetry, the generalized Noether symmetry, the inverse problem of Noether symmetry; Lie symmetry and the inverse problem of Lie symmetry. 通过将Lie群分析方法引入可控非完整系统,给出系统的变分原理、Noether对称性、广义Noether对称性、Noether对称性逆问题、Lie对称性理论以及Lie对称性逆问题。
Using the coupled mode theory, the coupling equations of the two symmetry waveguides with LPWGs have been derived and solved by Laplace Transform Inverse Laplace Transform method. The solutions give out the output light power and the coupling coefficient of the two symmetry waveguides. 从模耦合理论出发,推导并建立了对称双波导LPWG耦合结构的耦合方程,通过拉普拉斯反演变换求解,得到了输出光功率函数和耦合系数的计算公式。