It looks like ring_series, works only for finite cases, can it be extended for infinite case? SeriesData will just zip two sequences together. It is more general as variables can even be of the form sin(n*x), and not only x. In the main FormalPowerSeries class, I plan to provide an infinite representation of series.
Ring_series is undoubtedly fast, so it is a plus to use it in my implementation. I have glanced over the code of ring_series, and it may be modeled into the structure I propose, i.e based on sequences. The algorithms in ring_series can be used for manipulating truncated form of the series. In summary, I think SeriesData should be left as a higher abstraction, and operations for truncated series can be added in SeriesX or in FormalPowerSeries. Let me know what you think. Regards Sartaj Singh -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/219911aa-23af-473d-bc12-29160a3c2c19%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
