We obtain a sufficient condition and a essential - sufficient condition about convergence at the end point of the convergenceintervalof 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。
2
At present, computer can be used to iteratively solving Colebrook's formula, but first the problem about the convergenceintervalof iterative calculation must be solved.
The Fourier polynomial fitting is compared with the Chebysher polynomial fitting in the division of cyclic time interval and fitting accuracy as well as convergenceof function.