We obtain a sufficient condition and a essential - sufficient condition about convergence at the end point of the convergence interval of power series.
通过对阿贝尔定理的深入探讨，获得了幕级数在其收敛区间端点收敛的一些判别条件。
At present, computer can be used to iteratively solving Colebrook's formula, but first the problem about the convergence interval of iterative calculation must be solved.
完全可以使用计算机对柯氏公式进行迭代求解，但首先必须解决迭代计算的收敛区间问题，这个问题目前尚无明确的结论。
The Fourier polynomial fitting is compared with the Chebysher polynomial fitting in the division of cyclic time interval and fitting accuracy as well as convergence of function.
将本方法在周期时段划分、拟合精度、函数收敛方面与契比雪夫多项式拟合法进行了对比。
The feasibility and convergence of the BIMV method are proved when the coefficient matrix a of interval linear equations is an interval H-matrix.
当区间线性方程组的系数矩阵a为区间H阵时，证明了BIMV算法的可行性与收敛性。
Discuss the using of modal interval theory in solving the dynamic eigenvalue of uncertain parameters system. Research the divergence problem of solving interval and convergence rate problem.
探讨了模态区间方法在解决不确定参数系统动力特征值问题中的应用，研究了区间方程求解的解区间的发散问题和收敛速度问题。
Discuss the using of modal interval theory in solving the dynamic eigenvalue of uncertain parameters system. Research the divergence problem of solving interval and convergence rate problem.
探讨了模态区间方法在解决不确定参数系统动力特征值问题中的应用，研究了区间方程求解的解区间的发散问题和收敛速度问题。
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