Source: wikibot/dirichlet-jordan-test
= Dirichlet–Jordan test
{wiki=Dirichlet–Jordan_test}
The Dirichlet–Jordan test is a criterion used in analysis, particularly in the study of the convergence of series of functions, such as Fourier series. The test is useful for determining the pointwise convergence of a series of functions, especially when dealing with orthogonal functions or trigonometric series.