正切函数的幂级数表示与Bernoulli数的恒等式

Power series expression of tangent and some identities of Bernoulli′s Numbers

通过研究正切函数的幂级数表示 ,得到了其系数与Bernoulli数的关系 ,并由此得到了关于Bernoulli数的一组有趣的恒等式 .

The power series expression of tangent was stu di ed,the ralation between the coefficient of power series and the Bernoulli′s Num bers was established,some identities of Bernoulli′s Numbers were obtained.