For solving the matrix, we suggest a special iterative method in which the initial values of each iteration are estimated uncommonly. The discrete data of eigen-function would be exact enough when the iteration was run abort 10 to 20 cycles. 本文提出采用叠代法,可求解阶数很高的矩阵,但叠代初值须经特殊处理,经过10~20次的叠代就可得到足够精确的反应器特性函数的离散值。
Gives a fast border-deciding method for the two-dimensional linear discrete convolution. The convolution sum formula and its exact upper and lower borders of ten regions in the two-dimensional plane are also given. 导出了二维离散线性卷积的快速定限求解方法给出了在二维平面的十个区域中卷积的简便求和公式及卷积的上下限精确表达式。
At first, we obtain the defective discrete renewal equation of expected discounted penalty. The exact solution of Φ( 0,ω) is obtained by applying dominated convergence theorem. 我们首先得到Φ(u,w)的瑕疵离散更新方程,利用控制收敛定理得出Φ(0,w)的显式解;
An algorithm is devised to obtained exact traveling wave solutions of differential-differential equations by means of hyperbolic function. For illustration, we apply the method to solve the discrete nonlinear Toda-Lattice system, and construct some explicit and exact traveling wave solutions successfully. 利用双曲函数方法,研究了具有广泛、深刻物理背景的Toda-Lattice系统,得到了它的显式精确解,这种方法也适用于求解其他离散的非线性方程(组)。
The building of discrete state-space models including system noise provides a basis for the exact identification and effective control. 这种包含系统噪声的离散状态空间模型的建立,为网络化控制系统的准确辨识和有效控制奠定了基础。