termwise integration 逐项积分
termwise addition 逐项加法
termwise differentiable [数] 逐项可微的
termwise integrable series [数] 逐项可积级数
termwise derivation 逐项求导
Then, sum of the termwise integrated results is proved to be equal to that obtained from traditional immediate integration for plastic deformation power.
其次，将逐项积分结果求和并证明了求和结果与传统直接积分法的塑性功率表达式相同；
A relatively direct method is expounded in this paper to prove the termwise differentiation of power series, and a simple method is expressed to calculate the Fourier coefficient.
用比较直接的方法证明幂级数的和函数在收敛域内可以逐项微分的公式；并得到了计算傅立叶系数的一种简便方法。
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