“d'Alembert's test for convergence”的概念、定义、翻译、参考文献-科学参考

单词	d'Alembert's test for convergence
释义	d'Alembert's test for convergence [¦dal·ǝm¦bǝrz ´test fǝr kǝn`vǝr·jǝns] ^MATHEMATICS A series Σa_n converges if there is an N such that the absolute value of the ratio a_n/a_n-1 is always less than some fixed number smaller than 1, provided n is at least N, and diverges if the ratio is always greater than 1.
随便看	run-out time run-time data run-time error run-time error handler run-time library run-up runway runway environment runway lights runway observation runway temperature runway visibility runway visual range Rupelian rupicolous rupture rupture disk rupture disk device rupture zone rural radio service Rusa oil Rushton-Oldshue column Russell bodies Russell diagram Russell effect

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