#4612: [with patch, needs work] is_perfect_power for rationals
------------------------------+---------------------------------------------
Reporter: robertwb | Owner: somebody
Type: defect | Status: new
Priority: major | Milestone: sage-3.4
Component: basic arithmetic | Resolution:
Keywords: |
------------------------------+---------------------------------------------
Comment (by mabshoff):
Note that with the old gmp as well as the new eMPIRe this operation leaks
like a sieve:
{{{
sage: get_memory_usage()
798.4765625
sage: time len([a for a in srange(10**6) if not
(-a^3).is_perfect_power()])
CPU times: user 2.84 s, sys: 0.27 s, total: 3.12 s
Wall time: 3.12 s
241224
sage: get_memory_usage()
868.921875
}}}
I have made this #4935 since it is seemingly unrelated to the correctness
issue.
Cheers,
Michael
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4612#comment:14>
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
-~----------~----~----~----~------~----~------~--~---
