Source: wikibot/cauchy-s-convergence-test
= Cauchy's convergence test
{wiki=Cauchy's_convergence_test}
Cauchy's convergence test, also known as the Cauchy criterion for convergence, is a method used to determine whether a sequence of real or complex numbers converges. This criterion is particularly useful because it provides a way to check for convergence without requiring knowledge of the limit to which the sequence converges.