阐述了地方定额预算软件系统的设计及所采用的技术。
Conclusion Norm of operator is very important to estimate the spectral radius of operator.结论算子范数对于估计有界线性算子乘积与和的谱半径是至关重要的。
A upper bound with consistent matrix norm and the estimate for error of AOR iterative method for solving linear equation system, which based on the doubly diagonal dominance, are presented.在双严格占优矩阵条件下,给出了相容矩阵范数的一个上界,并以此为基础,得到了线性方程组求解时的AOR迭代法的误差估计式。