#4536: [with patch, needs review] Various number field order and ideal utilities
-------------------------------------------+--------------------------------
Reporter: cremona | Owner: was
Type: enhancement | Status: new
Priority: major | Milestone: sage-3.2.1
Component: number theory | Resolution:
Keywords: number fields, orders, ideals |
-------------------------------------------+--------------------------------
Comment (by mhansen):
Replying to [comment:2 cremona]:
> Quick answer: it never occurred to me to do it any other way! But isn't
it completely standard in Sage that when an object has a property (such as
the norm for an ideal) then one computes it the first time and caches it
so that further requests for the property used the cached value? This is
surely different from caching values of a function.
The cached_method decorator is relatively new which is why it isn't in use
throughout Sage. For an example, see the groebner_basis method in
sage/rings/polynomial/multi_polynomial_ideal.py
That's exactly what the cached_method decorator does except that it also
handles the case where arguments are passed into the method. The values
are cached in a dictionary attribute on the object itself so it gets
garbage collected correctly. It also supports things such as clearing the
cache, etc.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4536#comment:3>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en
-~----------~----~----~----~------~----~------~--~---
