root test

(redirected from Cauchy root test)

root test

[′rüt ‚test]
(mathematics)
An infinite series of nonnegative terms an converges if, after some term, the i th root of ai is less than a fixed number smaller than 1.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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