#7325: Sage cannot solve inequalities
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Reporter: robert.marik | Owner: tbd
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-4.3.1
Component: algebra | Keywords: relation, symbolics, inequality,
solve
Work_issues: | Author: Robert Marik
Upstream: N/A | Reviewer: Karl-Dieter Crisman
Merged: |
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Comment(by robert.marik):
Replying to [comment:19 kcrisman]:
>
> 4. In calculus/calculus.py, there is the following code:
> {{{
> maxima = Maxima(init_code = ['display2d:false', 'domain: complex',
'keepfloat: true', 'load(to_poly_solver)', 'load(simplify_sum)'],
> script_subdirectory=None)
> }}}
> Maybe the initialization of solve_rat_ineq and fourier_elim should be
there? Otherwise we are trying to load this with every attempt at a
solve_ineq, which seems inefficient.
I think that it is inefficient to load a bundle of packages whenever
Maxima starts. This makes computations provided by Maxima slower. Perhaps
we could use some variable swhich stores information, whether solvers of
inequality have been used or no.
And thanks for the other comments.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7325#comment:20>
Sage <http://www.sagemath.org>
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