Jason Grout wrote: > I'm trying to add _fast_float_ functionality to SymbolicEquation > objects. However, a perusal of the sage.ext.fast_eval.pyx file seems to > indicate that the operations <, <=, ==, >=, >, and != are not supported > by the fast_float machinery. Is that correct? If so, how do I add > these operations? If not, then how do I construct a FastDoubleFunc > object appropriately? > > Or, should I just use the python operators and call fast_float on each side? >
On the other hand (after implementing this and seeing it work beautifully :), I see that it messes with equality testing of functions (for example, see the doctests in sage/ext/fast_eval.pyx where we have functions compared to each other). To get around this, I instead use the _richcmp_ function. For examples, see the doctests at the patch on trac #2768. There are lots of timings on the trac ticket. Basically, it's something like 100x speedup, which I guess is par for the course when dealing with fast_float stuff :). Thanks, Jason --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
