DefinitionConvergence and Divergence are the properties of sequences and series which tell about how these sequence and series behave if no of terms increases. A convergent sequence is one whose terms get closer and closer to a finite limit as the sequence progresses, and a convergent series is one whose sum of its terms approaches a finite value. In mathematics, divergence in a sequence or a series is such that: In the disciplines of mathematical analysis, calculus, and real analysis, convergence and divergence are common terms used in elevating functions and sequences in proximity and in quality. For instance, the sequence an=n1 →0 as n→∞, but the harmonic series ∑n=1∞n1 is divergent.