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In mathematics, the limit comparison test (LCT) (in contrast with the related direct comparison test) is a method of testing for the convergence of an infinite series.
1.6 Limit comparison test. 1.7 Cauchy condensation test. 1.8 Abel's test. 1.9 Absolute convergence test. 1.10 Alternating series test. 1.11 Dirichlet's test.
First is the general direct comparison test: [51] [52] [47] For any series ... alternate in sign. Second is the general limit comparison test: [53] [54] If ...
Comparison test can mean: Limit comparison test , a method of testing for the convergence of an infinite series. Direct comparison test , a way of deducing the convergence or divergence of an infinite series or an improper integral.
Limit comparison test; N. Nth-term test; R. Ratio test; Root test; S. Stolz–Cesàro theorem; W. Weierstrass M-test This page was last edited on 3 November 2020, at ...
In mathematics, the comparison test, sometimes called the direct comparison test to distinguish it from similar related tests (especially the limit comparison test), provides a way of deducing whether an infinite series or an improper integral converges or diverges by comparing the series or integral to one whose convergence properties are known.
In mathematics, the nth-term test for divergence [1] is a simple test for the divergence of an infinite series: If lim n → ∞ a n ≠ 0 {\displaystyle \lim _{n\to \infty }a_{n}\neq 0} or if the limit does not exist, then ∑ n = 1 ∞ a n {\displaystyle \sum _{n=1}^{\infty }a_{n}} diverges.
is defined to be the limit of the partial products a 1 a 2...a n as n increases without bound. The product is said to converge when the limit exists and is not zero. Otherwise the product is said to diverge. A limit of zero is treated specially in order to obtain results analogous to those for infinite sums. Some sources allow convergence to 0 ...