英语词汇“Root test”是什么意思，翻译、用法及简单造句-英汉双解词典-英汉网

单词	Root test
释义	Root test 中文百科根值审敛法根值审敛法是判别正项级数敛散性的一种方法，又叫做柯西判别法。设 $\sum_{n=1}^\infty a_n$ 为正项级数，如果 $C = \lim_{n\rightarrow\infty}\sqrt[n]{a_n},$ 当C<1时级数收敛当C>1或C= $\infty$ 时级数发散当C=1时级数可能收敛也可能发散。英语百科 Root test 根值审敛法 In mathematics, the root test is a criterion for the convergence (a convergence test) of an infinite series. It depends on the quantity where $a_n$ are the terms of the series, and states that the series converges absolutely if this quantity is less than one but diverges if it is greater than one. It is particularly useful in connection with power series.
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Root test