On Sun, Jun 15, 2025 at 10:19:23AM +0200, 'Ralf Hemmecke' via FriCAS - computer
algebra system wrote:
> On 6/15/25 00:38, Waldek Hebisch wrote:
> > Attached is a little package which converts a stream of coefficients
> > of a Taylor series into continuous C-fraction. This package is
> > somewhat releated to PadeApproximants, but I was unable to use
> > PadeApproximants to do what I wanted, so I created a new package.
>
> In fact, I had similar problems in my QEtaPackage, so I created my own
> Taylor series implementation by setting the variable to q and the point of
> expansion to 0.
>
> https://github.com/hemmecke/qeta/blob/master/src/qetaser.spad#L143
>
> That works well for me, since I don't need other expansion points.
> But I remember that I had problems writing a coerce between my domain and
> UnivariateTaylorSeries.
>
> In fact, you do the similar thing in mantepse.spad.
>
> https://github.com/fricas/fricas/blob/master/src/algebra/mantepse.spad#L25
>
> Maybe, it is time to add domains for Taylor, Laurent, and Puiseux series
> which work similar in spirit like SUP, i,e. no variable and no expasion
> point.
Maybe. No variable may be limiting.
--
Waldek Hebisch
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