#5567: [with patch, positive review] bug in region_plot
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Reporter: whuss | Owner: whuss
Type: defect | Status: closed
Priority: major | Milestone: sage-3.4.2
Component: graphics | Resolution: fixed
Keywords: |
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Comment(by wcauchois):
Replying to [comment:6 jason]:
> Shouldn't the code in the doctest be deprecated in light of
http://trac.sagemath.org/sage_trac/ticket/5413 ?
>
> In fact, the equify function seems like it is in direct conflict with
the deprecation in http://trac.sagemath.org/sage_trac/ticket/5413, is it
not?
Playing around in the REPL, I don't see a way to define an inequality with
explicit variables -- since its not really a function. `f(x) = x^2 < 2`
throws an exception, for example. For region_plot, the variables can be
made explicit by specifying them in the plot ranges, in which case they
are passed on to equify via an argument. So the ambiguity which was the
motivation for #5413 can be avoided. I think that this is a subtly
different situation, and that `equify` is fine.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5567#comment:7>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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