The Summation of Series

The theory of continued fractions has been defined by a small handful of books.

The theory of continued fractions has been defined by a small handful of books. This is one of them. The focus of Wall's book is the study of continued fractions in the theory of analytic functions, rather than on arithmetical aspects. There are extended discussions of orthogonal polynomials, power series, infinite matrices and quadratic forms in infinitely many variables, definite integrals, the moment problem and the summation of divergent series.

The best way to really enjoy this installment of 20th Century Boys, is to quickly break out the DVDs of the previous two films, watch them to jog your memory, before turning up for this one. Given the myriad of characters and the lag between the local releases, a revisit is somewhat necessary since there's very little recap, and the juxtaposition of timelines through flashbacks also provide that additional narrative challenge, not to mention that memories, being memories, tend to be faulty as well, for both you, as well as the characters in the storyline.