section_path: Series of functions/Laurent series
section_name: Laurent series
paragraph_text: Laurent series
  
  Laurent series generalize power series by admitting terms into the series with negative as well as positive exponents. A Laurent series is thus any series of the form
  
  ∑ n = − ∞ ∞ a n x n. {\displaystyle \sum _{n=-\infty }^{\infty }a_{n}x^{n}.}
  
  If such a series converges, then in general it does so in an annulus rather than a disc, and possibly some boundary points. The series converges uniformly on compact subsets of the interior of the annulus of convergence.