利用概率方法计算一类常数项级数的和

USING PROBABILISTIC METHOD TO COUNT THE SUM OF A CERTAIN CONSTANT TERM SERIES

利用概率论的方法全面地推导出了用其它数学方法不易获得结果的常数项级数之和的较简便的计算方法

The author deduces a simple method of calculating the sum of a certain constant term series that isn't obtained easily by using other methematical methods.