#13340: log scale plot fails if xmin > xmax
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Reporter: ppurka | Owner: jason, was
Type: defect | Status: positive_review
Priority: major | Milestone: sage-5.3
Component: graphics | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Punarbasu Purkayastha | Merged in:
Dependencies: | Stopgaps:
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Changes (by ppurka):
* status: needs_review => positive_review
Old description:
> The summary. The problem is a simply a missing `abs()` function. Example:
> {{{
> plot(x,1,10).show(scale='loglog', xmin=10, xmax=1)
>
> File "/home/punarbasu/Installations/sage-5.2.trac/local/lib/python2.7
> /site-packages/sage/plot/graphics.py", line 1972, in
> _matplotlib_tick_formatter
> raise ValueError('Either expand the range of the independent '
> ValueError: Either expand the range of the independent variable to allow
> two different integer powers of your `base`, or change your `base` to a
> smaller number.
> }}}
>
> ----
>
> Apply [attachment:trac_13340-fix_logscale_xmin_xmax.patch] to
> `devel/sage`
New description:
Superseded by #13422
----
The summary. The problem is a simply a missing `abs()` function. Example:
{{{
plot(x,1,10).show(scale='loglog', xmin=10, xmax=1)
File "/home/punarbasu/Installations/sage-5.2.trac/local/lib/python2.7
/site-packages/sage/plot/graphics.py", line 1972, in
_matplotlib_tick_formatter
raise ValueError('Either expand the range of the independent '
ValueError: Either expand the range of the independent variable to allow
two different integer powers of your `base`, or change your `base` to a
smaller number.
}}}
--
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13340#comment:3>
Sage <http://www.sagemath.org>
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