#16197: provide function expansions of power series (from Pari)
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Reporter: rws | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.2
Component: calculus | Resolution:
Keywords: function, series expansion | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by kcrisman):
> Pari's symblic is not up to this. I'd consider it a bug that there is no
default precision to SR series results (like with `PowerSeries`), so yes,
if your last example would work without the `16` this ticket would rather
be about my example `sin(1+4*x^2)`---it should simply work like `series()`
and give back one instead of SR.
Hmm, that's an interesting suggestion. One could imagine it's a bug the
other way around, but I have no vested interest in this - I think a
default for either one could be useful, in principle, and (importantly)
wouldn't be backward-incompatible. But what would the default be? It's
hard to imagine one non-arbitrary... hmm. What do Mathematica and/or
Maple and/or Magma do with this? If there is a standard one could use
that.
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Ticket URL: <http://trac.sagemath.org/ticket/16197#comment:3>
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