Hi
On 19.07.2014 23:48, Jean-Pierre Flori wrote:
I can have a look next week.
Thanks!
Would you mind opening a ticket on trac for this?
http://trac.sagemath.org/ticket/16685
Best
Jonas
On Saturday, July 19, 2014 8:10:33 PM UTC+2, Jonas Jermann wrote:
Hi all
Could someone familiar with flint/sage enable flint's
revert_series (for rational/integer polynomials)?
(Sorry if it was already implemented somewhere and I missed it).
Attached is a small, non-intrusive patch (done with help from IRC)
in that direction which simply adds series reversion for
integer and rational flint polynomials.
For those polynomials (resp. power series) flint is _much_
faster than the current implementation of power series reversion
(which is a big bottleneck for the modular forms code I currently
work on -> "u/jj/hecke_mf").
In my opinion this offers an acceptable and small compromise which
in particular doesn't (yet) require to implement power series using
flint. For someone interested in using it for power series, simply
convert the series to a (flint) polynomial, apply flint's revert_series
and convert the result back to a power series.
It could of course also be used to replace the current power series
reversion over integers/rationals.
Best
Jonas
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