We can solve it with the power-series method if we want . 如果愿意的话，我们也可用幂级数法解题。
The process of replacing polynomials by formal power series is an example of a general device known as completion . 用形式幂级数来代替多项式的过程是被称之为完备化的这种一般手段的一个例子。
The general solution of (5. 122) is an arbitrary linear combination of a series of even powers and a series of odd powers . （5122）的通解是一个偶次幂级数和一个奇次幂级数的任意线性组合。
Some result of power series in convergence region 关于幂级数在收敛域内的一些结果
A survey of solutions of sum functions of power series 幂级数和函数的解法综述
Way to find the solution of power series convergence radius 求幂级数收敛半径的方法
Some properties for radius of convergence of a power series 幂级数收敛半径的若干性质
The summation and application to the certain power series 一类幂级数求和方法及其应用
On the rearrangements of the coefficients of two power series 关于两类幂级数系数的重排
Two applications of sum function of power series 幂级数和函数的两种应用
