#20441: Fast conversion ℚ[√a] → arb balls
-------------------------------------+-------------------------------------
Reporter: mmezzarobba | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-7.2
Component: numerical | Keywords:
Merged in: | Authors: Marc Mezzarobba
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | u/mmezzarobba/QNFelt_to_ball
ba857dd9802f7712838cbd15896a8ac755a0a503| Dependencies:
Stopgaps: |
-------------------------------------+-------------------------------------
Before:
{{{
sage: QQi.<i> = QuadraticField(-1)
sage: %timeit CBF(i)
The slowest run took 5.04 times longer than the fastest. This could mean
that an intermediate result is being cached.
100 loops, best of 3: 2.45 ms per loop
sage: NF.<a> = QuadraticField(2)
sage: RBF((a-1)^100)
[+/- 3.78e+22]
}}}
After:
{{{
sage: QQi.<i> = QuadraticField(-1)
sage: %timeit CBF(i)
The slowest run took 1175.13 times longer than the fastest. This could
mean that an intermediate result is being cached.
1000000 loops, best of 3: 791 ns per loop
sage: NF.<a> = QuadraticField(2)
sage: RBF((a-1)^100)
[5.27753918069144e-39 +/- 2.15e-54]
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/20441>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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