#14438: spurious "overflow encountered in arctan2" warning
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Reporter: zimmerma | Owner: jason, was
Type: defect | Status: new
Priority: minor | Milestone: sage-5.10
Component: graphics | Keywords:
Work issues: | Report Upstream: N/A
Reviewers: | Authors:
Merged in: | Dependencies:
Stopgaps: |
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in one of the examples of our book (in french) about Sage, we get the
following
warning:
{{{
----------------------------------------------------------------------
| Sage Version 5.8, Release Date: 2013-03-15 |
| Type "notebook()" for the browser-based notebook interface. |
| Type "help()" for help. |
----------------------------------------------------------------------
sage: g = plot([c*e^(-1/x) for c in srange(-8, 8, 0.4)], (x, -3, 3))
sage: y = var('y')
sage: g += plot_vector_field((x^2, y), (x,-3,3), (y,-5,5))
sage: g.show(ymin = -5, ymax = 5)
Warning: overflow encountered in arctan2
Warning: overflow encountered in arctan2
}}}
Note that this is **not deterministic**. Sometimes we do not get this
warning.
Paul
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14438>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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