summation formula

基本解释

In order to overcome the demerit of the slowness of the series convergence, we put forward the series summation formula.
为了克服级数收敛缓慢的缺点，提出级数求和公式。
The formula of finite summation of K Steps arithmetic progression is seeked out by using the summation function of power series.
用幂级数和函数的思想来给出阶等差数列求有限和的公式。
To avoid the effect of unidirectional layered compression summation method without considering side swell, the approximate calculation formula for estimating sluice(dam) foundation sinking is derived.
为避免单向分层压缩总和法不计侧胀（限）对沉降计算的影响，推导了一套计算闸（坝）基础沉降的近似计算公式。