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d'Alembert's test for convergence |
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d'Alembert's test for convergence [¦dal·əm¦bərz ‚test fər kən′vər·jəns]
(mathematics) A series ∑anconverges if there is anNsuch that the absolute value of the ratioan/an-1is always less than some fixed number smaller than 1, providednis at leastN, and diverges if the ratio is always greater than 1. Also known as generalized ratio test. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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