Hello everybody,
During my normal uses of SageMath, I observed that the class "PowerSeries"
appears in the TAB completion:
sage: PowerSeries[TAB]
PowerSeries
PowerSeriesRing
However this is the base class for the elements of a PowerSeriesRing and
the docstring explicitly states that it is not for public use:
sage: PowerSeries?
Docstring:
A power series. Base class of univariate and multivariate power
series. The following methods are available with both types of
objects.
Init docstring:
Initialize a power series. *Not for public use.* It gets called by
the "PowerSeries_poly" and "MPowerSeries" constructors.
[...]
I am not as experimented as some of you in SageMath development so before
creating a trac ticket about this I wanted to know if this is intentional?
>From my understanding, when implementing a new parent/element framework,
one should not instanciate directly the element class but use the parent's
element constructor instead (or other related method).
It is the same story with the classes "PuiseuxSeries" and "LaurentSeries"
which are the element classes of "PuiseuxSeriesRing" and
"LaurentSeriesRing" respectively. Are there times where someone would want
to use these directly?
Thanks!
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