#5396: Wrapping lcalc library
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Reporter: rishi | Owner: Rishi
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-4.3.1
Component: number theory | Keywords: lcalc
Work_issues: | Author: rishi, ylchapuy
Upstream: N/A | Reviewer: John Cremona
Merged: |
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Comment(by bober):
Suggestion: in the function Lfunction_from_character, instead of calling
chi.gauss_sum(), call chi.gauss_sum_numerical(). It is much faster, and in
the end we are only interested in the numerical approximation anyway.
{{{
sage: G = DirichletGroup(101)
sage: chi = G[1]
sage: time A = chi.gauss_sum()
CPU times: user 19.05 s, sys: 0.02 s, total: 19.07 s
Wall time: 19.07 s
sage: time B = chi.gauss_sum_numerical()
CPU times: user 0.06 s, sys: 0.00 s, total: 0.06 s
Wall time: 0.06 s
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5396#comment:44>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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