由使用正式力量系列的理论,作者为包含二项式的系数的 reciprocals 的二种无限的系列获得关上的形式,并且作者为无限的系列 rmtn+r/(n+rr ) 得到另一种关上的形式。
By applying the theory of formal power series,the author obtains the closed forms for two kinds of infinite series involving the reciprocals of binomial coefficients,and the author gets another closed form for the infinite series Σr≥m tn+r/(n+rr).