对数值级数重组的注记

A note on rearrangement of numeral series

讨论了数值级数重排及加括号重组对其敛散性及和的影响．即不改变级数顺序，只对其加括号重组和改变顺序重组。

It is dealt with that the effect of the convergence and the sums of numeral series in the conditions of the rearrangement and brackets are added. The two kinds of conditions are considered. First, the order of series is unchanged and the some terms are placed in brackets; Second ,the order of series is rearranged and brackets are added. The sums of some series are found in the case of the arrangement.