查询词典 operation of symmetric difference

In the full-scale aero-elastic model test, it is observed that there exist more than one interval of poor aerodynamic performance, and the non-symmetric erection sequence, while increasing the aerodynamic stability at the very places where aerodynamic performance of symmetric erection sequence is poor, performs worse in some other intervals with a vertical flutter phenomenon.

在全桥气弹模型的风洞试验中发现，采用对称架梁施工方法，在施工过程中会存在颤振稳定性最差的区间，并且这样的区间可能不止一个，而采用非对称架梁施工方法，固然在那些采用对称架梁施工时颤振稳定性较差的区间处提高了颤振稳定性能，但却在另一些施工区间中表现出比对称架梁施工更差的颤振稳定性能。

It is proved by this commutable diagram that the invertibility of a generalized symmetric system is equivalent to that of the quotient system, which makes the verification of the invertibility of generalized symmetric systems much easier.

利用这个交换图证明了广义对称系统的可逆性等价于其商系统的可逆性，从而使可逆性的检验大为简单。

Particularly, the weight configuration matrix is not necessarily symmetric or irreducible, and the inner-coupling matrix need not be symmetric.

特别地，文中的构形矩阵不必要是对称或不可约阵，内部耦合阵也不必为对称阵。

In Chapter 6, the symmetric ortho-symmetric solution of the matrix equation AXAT = Bon the linear manifold S ={X 6 SPRnxn\XZ = Y, ZjYt = Y?

运用矩阵对的标准相关分解，给出了上述两类线性流形上矩阵方程A~TXA=B的双对称最小二乘解的通解表达式。

In Chapter 2, the D-symmetric solutions of matrix equation A~TXA = B on the linear manifold S ={X ∈ D~(-2)SR~|XZ = Y, Y = Y{D~2Z+D~2Z, Z~TD~2Y = Y~TD~2Z, Y,Z∈ R~}, by applying the generalized singular value decomposition of a matrix pair, the necessary and sufficient conditions for the existence and the expressions for the D-symmetric solutions of matrix equation A~TXA — B on the linear manifold are established.

运用矩阵对的广义奇异值分解，给出了这类线性流形上矩阵方程A~TXA=B存在D对称解的充要条件及其通解的表达式。另外给出了它的D对称最小二乘解的表达式。

In Chapter 4, the centro-symmetric solutions of matrix equation A~TXA = B on the linear manifold S ={X ∈ CSR~|||XY - Z||= min, Y,Z ∈ R~|}, using the quotient singular value decomposition of matrix pairs, the necessary and sufficient conditions for the existence and the expressions for the centro-symmetric solutions of matrix equation A~TXA = B on the linear manifold are established.

利用矩阵对的商奇异值分解，给出了这类线性流形上矩阵方程A~TXA=B存在中心对称解的充要条件及其通解表达式。

In this paper gravitational mass defect in static and spherically symmetric metric discussed by Ghose and Kumar is extended to the case of charged, static and spherically symmetric metric (Reissner-NordstrSm metric).

本文把Ghosc和Kumer在球对称、静态引力场(Schwarzchild度规)中讨论的引力质量亏损推广到荷电、静态、球对称场(Reissner-Nordstrm度规)中，并计算了亏损以后的质量M随初始质量M_0、荷质比α和半径r的各种变化曲线。

In really society,there are many examples of symmetric game ,therefore,it is of greater significace in theory and practice for studying the properties of symmetric game and getting the solution of common matrix game from special ones to general ones.

在现实世界中，有许多对称对策的实例，因此，研究对称对策的性质，再由特殊到一般得到一般矩阵对策的解法，有着较大的理论和实际意义。

Two new chapters treat symmetric indefinite systems and skew-symmetric systems, and nonlinear systems and Newton's method.

两新章对待匀称的模糊的系统和歪斜失真对称系统和非线性的系统和牛顿的方法。

Advanced edition additionally supports QR and Singular Value decompositions, Eigenvalue and Eigenvector computation for symmetric and non symmetric matrices.

高级版此外支持的QR和奇异值分解，特征值和特征向量计算对称和非对称矩阵。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？