#16907: Adding two region plots yields surprising results
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Reporter: kcrisman | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.4
Component: graphics | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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And wrong ones, of course. See [https://groups.google.com/forum/#!topic
/sage-support/TRM4f-LJ6vE this sage-support thread].
{{{
sage: disc1= region_plot(lambda x, y : x^2+y^2 < 1, (x, -1, 1), (y, -1,
1))
sage: disc2= region_plot(lambda x, y : (x-0.7)^2+(y-0.7)^2 < 0.5, (x, -2,
2), (y, -2, 2) )
}}}
then do `disc1+disc2` and `disc2+disc1` for some surprises. Most likely
we are abusing `contourf` in matplotlib a little by allowing the adding of
these plots.
--
Ticket URL: <http://trac.sagemath.org/ticket/16907>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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