#13368: plot(x, xmax=1, xmin=-1) comes up empty
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       Reporter:  ppurka    |        Owner:  jason, was
           Type:  defect    |       Status:  needs_info
       Priority:  major     |    Milestone:  sage-6.4
      Component:  graphics  |   Resolution:
       Keywords:            |    Merged in:
        Authors:            |    Reviewers:
Report Upstream:  N/A       |  Work issues:
         Branch:            |       Commit:
   Dependencies:            |     Stopgaps:
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Changes (by paulmasson):

 * cc: paulmasson (added)
 * status:  new => needs_info


Comment:

 As of 7.3.beta8 evaluating `plot(x, xmin=-1, xmax=1)` and
 `plot(1/x,xmin=-5,xmax=5,ymin=-5,ymax=5)` both produce the expected
 graphs.

 Evaluating `plot(x, xmin=1, xmax=-1)` with a reversed domain does not
 produce a plot. Evaluating`plot(1/x,xmin=-5,xmax=5,ymin=5,ymax=-5)` with
 an inverted range flips the plot upside down.

 Shouldn't this ticket be first about a sanity check on domain and range?
 Is there a good reason to allow reversal and inversion?

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Ticket URL: <https://trac.sagemath.org/ticket/13368#comment:12>
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